Digi del-5.6 Complete2.6.31-digi-201102151558

15 files changed, 10647 insertions, 0 deletions

diff --git a/drivers/mtd/nand/gpmi-nfc/Makefile b/drivers/mtd/nand/gpmi-nfc/Makefile
new file mode 100644
index 000000000000..e3d5660735b6
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/Makefile
@@ -0,0 +1,10 @@
+obj-$(CONFIG_MTD_NAND_GPMI_NFC) += gpmi-nfc.o
+gpmi-nfc-objs += gpmi-nfc-main.o
+gpmi-nfc-objs += gpmi-nfc-event-reporting.o
+gpmi-nfc-objs += gpmi-nfc-hal-common.o
+gpmi-nfc-objs += gpmi-nfc-hal-v0.o
+gpmi-nfc-objs += gpmi-nfc-hal-v1.o
+gpmi-nfc-objs += gpmi-nfc-rom-common.o
+gpmi-nfc-objs += gpmi-nfc-rom-v0.o
+gpmi-nfc-objs += gpmi-nfc-rom-v1.o
+gpmi-nfc-objs += gpmi-nfc-mil.o
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-bch-regs-v0.h b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-bch-regs-v0.h
new file mode 100644
index 000000000000..9af4feb29021
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-bch-regs-v0.h
@@ -0,0 +1,550 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
+ * Copyright 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef __GPMI_NFC_BCH_REGS_H
+#define __GPMI_NFC_BCH_REGS_H
+
+/*============================================================================*/
+
+#define HW_BCH_CTRL	(0x00000000)
+#define HW_BCH_CTRL_SET	(0x00000004)
+#define HW_BCH_CTRL_CLR	(0x00000008)
+#define HW_BCH_CTRL_TOG	(0x0000000c)
+
+#define BM_BCH_CTRL_SFTRST	0x80000000
+#define BV_BCH_CTRL_SFTRST__RUN   0x0
+#define BV_BCH_CTRL_SFTRST__RESET 0x1
+#define BM_BCH_CTRL_CLKGATE	0x40000000
+#define BV_BCH_CTRL_CLKGATE__RUN     0x0
+#define BV_BCH_CTRL_CLKGATE__NO_CLKS 0x1
+#define BP_BCH_CTRL_RSVD5	23
+#define BM_BCH_CTRL_RSVD5	0x3F800000
+#define BF_BCH_CTRL_RSVD5(v) (((v) << 23) & BM_BCH_CTRL_RSVD5)
+#define BM_BCH_CTRL_DEBUGSYNDROME	0x00400000
+#define BP_BCH_CTRL_RSVD4	20
+#define BM_BCH_CTRL_RSVD4	0x00300000
+#define BF_BCH_CTRL_RSVD4(v) (((v) << 20) & BM_BCH_CTRL_RSVD4)
+#define BP_BCH_CTRL_M2M_LAYOUT	18
+#define BM_BCH_CTRL_M2M_LAYOUT	0x000C0000
+#define BF_BCH_CTRL_M2M_LAYOUT(v) (((v) << 18) & BM_BCH_CTRL_M2M_LAYOUT)
+#define BM_BCH_CTRL_M2M_ENCODE	0x00020000
+#define BM_BCH_CTRL_M2M_ENABLE	0x00010000
+#define BP_BCH_CTRL_RSVD3	11
+#define BM_BCH_CTRL_RSVD3	0x0000F800
+#define BF_BCH_CTRL_RSVD3(v) (((v) << 11) & BM_BCH_CTRL_RSVD3)
+#define BM_BCH_CTRL_DEBUG_STALL_IRQ_EN	0x00000400
+#define BM_BCH_CTRL_RSVD2	0x00000200
+#define BM_BCH_CTRL_COMPLETE_IRQ_EN	0x00000100
+#define BP_BCH_CTRL_RSVD1	4
+#define BM_BCH_CTRL_RSVD1	0x000000F0
+#define BF_BCH_CTRL_RSVD1(v) (((v) << 4) & BM_BCH_CTRL_RSVD1)
+#define BM_BCH_CTRL_BM_ERROR_IRQ	0x00000008
+#define BM_BCH_CTRL_DEBUG_STALL_IRQ	0x00000004
+#define BM_BCH_CTRL_RSVD0	0x00000002
+#define BM_BCH_CTRL_COMPLETE_IRQ	0x00000001
+
+/*============================================================================*/
+
+#define HW_BCH_STATUS0	(0x00000010)
+
+#define BP_BCH_STATUS0_HANDLE	20
+#define BM_BCH_STATUS0_HANDLE	0xFFF00000
+#define BF_BCH_STATUS0_HANDLE(v) \
+		(((v) << 20) & BM_BCH_STATUS0_HANDLE)
+#define BP_BCH_STATUS0_COMPLETED_CE	16
+#define BM_BCH_STATUS0_COMPLETED_CE	0x000F0000
+#define BF_BCH_STATUS0_COMPLETED_CE(v)  \
+		(((v) << 16) & BM_BCH_STATUS0_COMPLETED_CE)
+#define BP_BCH_STATUS0_STATUS_BLK0	8
+#define BM_BCH_STATUS0_STATUS_BLK0	0x0000FF00
+#define BF_BCH_STATUS0_STATUS_BLK0(v)  \
+		(((v) << 8) & BM_BCH_STATUS0_STATUS_BLK0)
+#define BV_BCH_STATUS0_STATUS_BLK0__ZERO          0x00
+#define BV_BCH_STATUS0_STATUS_BLK0__ERROR1        0x01
+#define BV_BCH_STATUS0_STATUS_BLK0__ERROR2        0x02
+#define BV_BCH_STATUS0_STATUS_BLK0__ERROR3        0x03
+#define BV_BCH_STATUS0_STATUS_BLK0__ERROR4        0x04
+#define BV_BCH_STATUS0_STATUS_BLK0__UNCORRECTABLE 0xFE
+#define BV_BCH_STATUS0_STATUS_BLK0__ERASED        0xFF
+#define BP_BCH_STATUS0_RSVD1	5
+#define BM_BCH_STATUS0_RSVD1	0x000000E0
+#define BF_BCH_STATUS0_RSVD1(v)  \
+		(((v) << 5) & BM_BCH_STATUS0_RSVD1)
+#define BM_BCH_STATUS0_ALLONES	0x00000010
+#define BM_BCH_STATUS0_CORRECTED	0x00000008
+#define BM_BCH_STATUS0_UNCORRECTABLE	0x00000004
+#define BP_BCH_STATUS0_RSVD0	0
+#define BM_BCH_STATUS0_RSVD0	0x00000003
+#define BF_BCH_STATUS0_RSVD0(v)  \
+		(((v) << 0) & BM_BCH_STATUS0_RSVD0)
+
+/*============================================================================*/
+
+#define HW_BCH_MODE	(0x00000020)
+
+#define BP_BCH_MODE_RSVD	8
+#define BM_BCH_MODE_RSVD	0xFFFFFF00
+#define BF_BCH_MODE_RSVD(v) \
+		(((v) << 8) & BM_BCH_MODE_RSVD)
+#define BP_BCH_MODE_ERASE_THRESHOLD	0
+#define BM_BCH_MODE_ERASE_THRESHOLD	0x000000FF
+#define BF_BCH_MODE_ERASE_THRESHOLD(v)  \
+		(((v) << 0) & BM_BCH_MODE_ERASE_THRESHOLD)
+
+/*============================================================================*/
+
+#define HW_BCH_ENCODEPTR	(0x00000030)
+
+#define BP_BCH_ENCODEPTR_ADDR	0
+#define BM_BCH_ENCODEPTR_ADDR	0xFFFFFFFF
+#define BF_BCH_ENCODEPTR_ADDR(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_DATAPTR	(0x00000040)
+
+#define BP_BCH_DATAPTR_ADDR	0
+#define BM_BCH_DATAPTR_ADDR	0xFFFFFFFF
+#define BF_BCH_DATAPTR_ADDR(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_METAPTR	(0x00000050)
+
+#define BP_BCH_METAPTR_ADDR	0
+#define BM_BCH_METAPTR_ADDR	0xFFFFFFFF
+#define BF_BCH_METAPTR_ADDR(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_LAYOUTSELECT	(0x00000070)
+
+#define BP_BCH_LAYOUTSELECT_CS15_SELECT	30
+#define BM_BCH_LAYOUTSELECT_CS15_SELECT	0xC0000000
+#define BF_BCH_LAYOUTSELECT_CS15_SELECT(v) \
+		(((v) << 30) & BM_BCH_LAYOUTSELECT_CS15_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS14_SELECT	28
+#define BM_BCH_LAYOUTSELECT_CS14_SELECT	0x30000000
+#define BF_BCH_LAYOUTSELECT_CS14_SELECT(v)  \
+		(((v) << 28) & BM_BCH_LAYOUTSELECT_CS14_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS13_SELECT	26
+#define BM_BCH_LAYOUTSELECT_CS13_SELECT	0x0C000000
+#define BF_BCH_LAYOUTSELECT_CS13_SELECT(v)  \
+		(((v) << 26) & BM_BCH_LAYOUTSELECT_CS13_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS12_SELECT	24
+#define BM_BCH_LAYOUTSELECT_CS12_SELECT	0x03000000
+#define BF_BCH_LAYOUTSELECT_CS12_SELECT(v)  \
+		(((v) << 24) & BM_BCH_LAYOUTSELECT_CS12_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS11_SELECT	22
+#define BM_BCH_LAYOUTSELECT_CS11_SELECT	0x00C00000
+#define BF_BCH_LAYOUTSELECT_CS11_SELECT(v)  \
+		(((v) << 22) & BM_BCH_LAYOUTSELECT_CS11_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS10_SELECT	20
+#define BM_BCH_LAYOUTSELECT_CS10_SELECT	0x00300000
+#define BF_BCH_LAYOUTSELECT_CS10_SELECT(v)  \
+		(((v) << 20) & BM_BCH_LAYOUTSELECT_CS10_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS9_SELECT	18
+#define BM_BCH_LAYOUTSELECT_CS9_SELECT	0x000C0000
+#define BF_BCH_LAYOUTSELECT_CS9_SELECT(v)  \
+		(((v) << 18) & BM_BCH_LAYOUTSELECT_CS9_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS8_SELECT	16
+#define BM_BCH_LAYOUTSELECT_CS8_SELECT	0x00030000
+#define BF_BCH_LAYOUTSELECT_CS8_SELECT(v)  \
+		(((v) << 16) & BM_BCH_LAYOUTSELECT_CS8_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS7_SELECT	14
+#define BM_BCH_LAYOUTSELECT_CS7_SELECT	0x0000C000
+#define BF_BCH_LAYOUTSELECT_CS7_SELECT(v)  \
+		(((v) << 14) & BM_BCH_LAYOUTSELECT_CS7_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS6_SELECT	12
+#define BM_BCH_LAYOUTSELECT_CS6_SELECT	0x00003000
+#define BF_BCH_LAYOUTSELECT_CS6_SELECT(v)  \
+		(((v) << 12) & BM_BCH_LAYOUTSELECT_CS6_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS5_SELECT	10
+#define BM_BCH_LAYOUTSELECT_CS5_SELECT	0x00000C00
+#define BF_BCH_LAYOUTSELECT_CS5_SELECT(v)  \
+		(((v) << 10) & BM_BCH_LAYOUTSELECT_CS5_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS4_SELECT	8
+#define BM_BCH_LAYOUTSELECT_CS4_SELECT	0x00000300
+#define BF_BCH_LAYOUTSELECT_CS4_SELECT(v)  \
+		(((v) << 8) & BM_BCH_LAYOUTSELECT_CS4_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS3_SELECT	6
+#define BM_BCH_LAYOUTSELECT_CS3_SELECT	0x000000C0
+#define BF_BCH_LAYOUTSELECT_CS3_SELECT(v)  \
+		(((v) << 6) & BM_BCH_LAYOUTSELECT_CS3_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS2_SELECT	4
+#define BM_BCH_LAYOUTSELECT_CS2_SELECT	0x00000030
+#define BF_BCH_LAYOUTSELECT_CS2_SELECT(v)  \
+		(((v) << 4) & BM_BCH_LAYOUTSELECT_CS2_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS1_SELECT	2
+#define BM_BCH_LAYOUTSELECT_CS1_SELECT	0x0000000C
+#define BF_BCH_LAYOUTSELECT_CS1_SELECT(v)  \
+		(((v) << 2) & BM_BCH_LAYOUTSELECT_CS1_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS0_SELECT	0
+#define BM_BCH_LAYOUTSELECT_CS0_SELECT	0x00000003
+#define BF_BCH_LAYOUTSELECT_CS0_SELECT(v)  \
+		(((v) << 0) & BM_BCH_LAYOUTSELECT_CS0_SELECT)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH0LAYOUT0	(0x00000080)
+
+#define BP_BCH_FLASH0LAYOUT0_NBLOCKS	24
+#define BM_BCH_FLASH0LAYOUT0_NBLOCKS	0xFF000000
+#define BF_BCH_FLASH0LAYOUT0_NBLOCKS(v) \
+		(((v) << 24) & BM_BCH_FLASH0LAYOUT0_NBLOCKS)
+#define BP_BCH_FLASH0LAYOUT0_META_SIZE	16
+#define BM_BCH_FLASH0LAYOUT0_META_SIZE	0x00FF0000
+#define BF_BCH_FLASH0LAYOUT0_META_SIZE(v)  \
+		(((v) << 16) & BM_BCH_FLASH0LAYOUT0_META_SIZE)
+#define BP_BCH_FLASH0LAYOUT0_ECC0	12
+#define BM_BCH_FLASH0LAYOUT0_ECC0	0x0000F000
+#define BF_BCH_FLASH0LAYOUT0_ECC0(v)  \
+		(((v) << 12) & BM_BCH_FLASH0LAYOUT0_ECC0)
+#define BV_BCH_FLASH0LAYOUT0_ECC0__NONE  0x0
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC2  0x1
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC4  0x2
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC6  0x3
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC8  0x4
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC10 0x5
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC12 0x6
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC14 0x7
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC16 0x8
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC18 0x9
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC20 0xA
+#define BP_BCH_FLASH0LAYOUT0_DATA0_SIZE	0
+#define BM_BCH_FLASH0LAYOUT0_DATA0_SIZE	0x00000FFF
+#define BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH0LAYOUT0_DATA0_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH0LAYOUT1	(0x00000090)
+
+#define BP_BCH_FLASH0LAYOUT1_PAGE_SIZE	16
+#define BM_BCH_FLASH0LAYOUT1_PAGE_SIZE	0xFFFF0000
+#define BF_BCH_FLASH0LAYOUT1_PAGE_SIZE(v) \
+		(((v) << 16) & BM_BCH_FLASH0LAYOUT1_PAGE_SIZE)
+#define BP_BCH_FLASH0LAYOUT1_ECCN	12
+#define BM_BCH_FLASH0LAYOUT1_ECCN	0x0000F000
+#define BF_BCH_FLASH0LAYOUT1_ECCN(v)  \
+		(((v) << 12) & BM_BCH_FLASH0LAYOUT1_ECCN)
+#define BV_BCH_FLASH0LAYOUT1_ECCN__NONE  0x0
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC2  0x1
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC4  0x2
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC6  0x3
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC8  0x4
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC10 0x5
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC12 0x6
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC14 0x7
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC16 0x8
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC18 0x9
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC20 0xA
+#define BP_BCH_FLASH0LAYOUT1_DATAN_SIZE	0
+#define BM_BCH_FLASH0LAYOUT1_DATAN_SIZE	0x00000FFF
+#define BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH0LAYOUT1_DATAN_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH1LAYOUT0	(0x000000a0)
+
+#define BP_BCH_FLASH1LAYOUT0_NBLOCKS	24
+#define BM_BCH_FLASH1LAYOUT0_NBLOCKS	0xFF000000
+#define BF_BCH_FLASH1LAYOUT0_NBLOCKS(v) \
+		(((v) << 24) & BM_BCH_FLASH1LAYOUT0_NBLOCKS)
+#define BP_BCH_FLASH1LAYOUT0_META_SIZE	16
+#define BM_BCH_FLASH1LAYOUT0_META_SIZE	0x00FF0000
+#define BF_BCH_FLASH1LAYOUT0_META_SIZE(v)  \
+		(((v) << 16) & BM_BCH_FLASH1LAYOUT0_META_SIZE)
+#define BP_BCH_FLASH1LAYOUT0_ECC0	12
+#define BM_BCH_FLASH1LAYOUT0_ECC0	0x0000F000
+#define BF_BCH_FLASH1LAYOUT0_ECC0(v)  \
+		(((v) << 12) & BM_BCH_FLASH1LAYOUT0_ECC0)
+#define BV_BCH_FLASH1LAYOUT0_ECC0__NONE  0x0
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC2  0x1
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC4  0x2
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC6  0x3
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC8  0x4
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC10 0x5
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC12 0x6
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC14 0x7
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC16 0x8
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC18 0x9
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC20 0xA
+#define BP_BCH_FLASH1LAYOUT0_DATA0_SIZE	0
+#define BM_BCH_FLASH1LAYOUT0_DATA0_SIZE	0x00000FFF
+#define BF_BCH_FLASH1LAYOUT0_DATA0_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH1LAYOUT0_DATA0_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH1LAYOUT1	(0x000000b0)
+
+#define BP_BCH_FLASH1LAYOUT1_PAGE_SIZE	16
+#define BM_BCH_FLASH1LAYOUT1_PAGE_SIZE	0xFFFF0000
+#define BF_BCH_FLASH1LAYOUT1_PAGE_SIZE(v) \
+		(((v) << 16) & BM_BCH_FLASH1LAYOUT1_PAGE_SIZE)
+#define BP_BCH_FLASH1LAYOUT1_ECCN	12
+#define BM_BCH_FLASH1LAYOUT1_ECCN	0x0000F000
+#define BF_BCH_FLASH1LAYOUT1_ECCN(v)  \
+		(((v) << 12) & BM_BCH_FLASH1LAYOUT1_ECCN)
+#define BV_BCH_FLASH1LAYOUT1_ECCN__NONE  0x0
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC2  0x1
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC4  0x2
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC6  0x3
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC8  0x4
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC10 0x5
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC12 0x6
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC14 0x7
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC16 0x8
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC18 0x9
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC20 0xA
+#define BP_BCH_FLASH1LAYOUT1_DATAN_SIZE	0
+#define BM_BCH_FLASH1LAYOUT1_DATAN_SIZE	0x00000FFF
+#define BF_BCH_FLASH1LAYOUT1_DATAN_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH1LAYOUT1_DATAN_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH2LAYOUT0	(0x000000c0)
+
+#define BP_BCH_FLASH2LAYOUT0_NBLOCKS	24
+#define BM_BCH_FLASH2LAYOUT0_NBLOCKS	0xFF000000
+#define BF_BCH_FLASH2LAYOUT0_NBLOCKS(v) \
+		(((v) << 24) & BM_BCH_FLASH2LAYOUT0_NBLOCKS)
+#define BP_BCH_FLASH2LAYOUT0_META_SIZE	16
+#define BM_BCH_FLASH2LAYOUT0_META_SIZE	0x00FF0000
+#define BF_BCH_FLASH2LAYOUT0_META_SIZE(v)  \
+		(((v) << 16) & BM_BCH_FLASH2LAYOUT0_META_SIZE)
+#define BP_BCH_FLASH2LAYOUT0_ECC0	12
+#define BM_BCH_FLASH2LAYOUT0_ECC0	0x0000F000
+#define BF_BCH_FLASH2LAYOUT0_ECC0(v)  \
+		(((v) << 12) & BM_BCH_FLASH2LAYOUT0_ECC0)
+#define BV_BCH_FLASH2LAYOUT0_ECC0__NONE  0x0
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC2  0x1
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC4  0x2
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC6  0x3
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC8  0x4
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC10 0x5
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC12 0x6
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC14 0x7
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC16 0x8
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC18 0x9
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC20 0xA
+#define BP_BCH_FLASH2LAYOUT0_DATA0_SIZE	0
+#define BM_BCH_FLASH2LAYOUT0_DATA0_SIZE	0x00000FFF
+#define BF_BCH_FLASH2LAYOUT0_DATA0_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH2LAYOUT0_DATA0_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH2LAYOUT1	(0x000000d0)
+
+#define BP_BCH_FLASH2LAYOUT1_PAGE_SIZE	16
+#define BM_BCH_FLASH2LAYOUT1_PAGE_SIZE	0xFFFF0000
+#define BF_BCH_FLASH2LAYOUT1_PAGE_SIZE(v) \
+		(((v) << 16) & BM_BCH_FLASH2LAYOUT1_PAGE_SIZE)
+#define BP_BCH_FLASH2LAYOUT1_ECCN	12
+#define BM_BCH_FLASH2LAYOUT1_ECCN	0x0000F000
+#define BF_BCH_FLASH2LAYOUT1_ECCN(v)  \
+		(((v) << 12) & BM_BCH_FLASH2LAYOUT1_ECCN)
+#define BV_BCH_FLASH2LAYOUT1_ECCN__NONE  0x0
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC2  0x1
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC4  0x2
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC6  0x3
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC8  0x4
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC10 0x5
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC12 0x6
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC14 0x7
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC16 0x8
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC18 0x9
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC20 0xA
+#define BP_BCH_FLASH2LAYOUT1_DATAN_SIZE	0
+#define BM_BCH_FLASH2LAYOUT1_DATAN_SIZE	0x00000FFF
+#define BF_BCH_FLASH2LAYOUT1_DATAN_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH2LAYOUT1_DATAN_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH3LAYOUT0	(0x000000e0)
+
+#define BP_BCH_FLASH3LAYOUT0_NBLOCKS	24
+#define BM_BCH_FLASH3LAYOUT0_NBLOCKS	0xFF000000
+#define BF_BCH_FLASH3LAYOUT0_NBLOCKS(v) \
+		(((v) << 24) & BM_BCH_FLASH3LAYOUT0_NBLOCKS)
+#define BP_BCH_FLASH3LAYOUT0_META_SIZE	16
+#define BM_BCH_FLASH3LAYOUT0_META_SIZE	0x00FF0000
+#define BF_BCH_FLASH3LAYOUT0_META_SIZE(v)  \
+		(((v) << 16) & BM_BCH_FLASH3LAYOUT0_META_SIZE)
+#define BP_BCH_FLASH3LAYOUT0_ECC0	12
+#define BM_BCH_FLASH3LAYOUT0_ECC0	0x0000F000
+#define BF_BCH_FLASH3LAYOUT0_ECC0(v)  \
+		(((v) << 12) & BM_BCH_FLASH3LAYOUT0_ECC0)
+#define BV_BCH_FLASH3LAYOUT0_ECC0__NONE  0x0
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC2  0x1
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC4  0x2
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC6  0x3
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC8  0x4
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC10 0x5
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC12 0x6
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC14 0x7
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC16 0x8
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC18 0x9
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC20 0xA
+#define BP_BCH_FLASH3LAYOUT0_DATA0_SIZE	0
+#define BM_BCH_FLASH3LAYOUT0_DATA0_SIZE	0x00000FFF
+#define BF_BCH_FLASH3LAYOUT0_DATA0_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH3LAYOUT0_DATA0_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH3LAYOUT1	(0x000000f0)
+
+#define BP_BCH_FLASH3LAYOUT1_PAGE_SIZE	16
+#define BM_BCH_FLASH3LAYOUT1_PAGE_SIZE	0xFFFF0000
+#define BF_BCH_FLASH3LAYOUT1_PAGE_SIZE(v) \
+		(((v) << 16) & BM_BCH_FLASH3LAYOUT1_PAGE_SIZE)
+#define BP_BCH_FLASH3LAYOUT1_ECCN	12
+#define BM_BCH_FLASH3LAYOUT1_ECCN	0x0000F000
+#define BF_BCH_FLASH3LAYOUT1_ECCN(v)  \
+		(((v) << 12) & BM_BCH_FLASH3LAYOUT1_ECCN)
+#define BV_BCH_FLASH3LAYOUT1_ECCN__NONE  0x0
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC2  0x1
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC4  0x2
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC6  0x3
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC8  0x4
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC10 0x5
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC12 0x6
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC14 0x7
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC16 0x8
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC18 0x9
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC20 0xA
+#define BP_BCH_FLASH3LAYOUT1_DATAN_SIZE	0
+#define BM_BCH_FLASH3LAYOUT1_DATAN_SIZE	0x00000FFF
+#define BF_BCH_FLASH3LAYOUT1_DATAN_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH3LAYOUT1_DATAN_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_DEBUG0	(0x00000100)
+#define HW_BCH_DEBUG0_SET	(0x00000104)
+#define HW_BCH_DEBUG0_CLR	(0x00000108)
+#define HW_BCH_DEBUG0_TOG	(0x0000010c)
+
+#define BP_BCH_DEBUG0_RSVD1	27
+#define BM_BCH_DEBUG0_RSVD1	0xF8000000
+#define BF_BCH_DEBUG0_RSVD1(v) \
+		(((v) << 27) & BM_BCH_DEBUG0_RSVD1)
+#define BM_BCH_DEBUG0_ROM_BIST_ENABLE	0x04000000
+#define BM_BCH_DEBUG0_ROM_BIST_COMPLETE	0x02000000
+#define BP_BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL	16
+#define BM_BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL	0x01FF0000
+#define BF_BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL(v)  \
+		(((v) << 16) & BM_BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL)
+#define BV_BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL__NORMAL    0x0
+#define BV_BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL__TEST_MODE 0x1
+#define BM_BCH_DEBUG0_KES_DEBUG_SHIFT_SYND	0x00008000
+#define BM_BCH_DEBUG0_KES_DEBUG_PAYLOAD_FLAG	0x00004000
+#define BV_BCH_DEBUG0_KES_DEBUG_PAYLOAD_FLAG__DATA 0x1
+#define BV_BCH_DEBUG0_KES_DEBUG_PAYLOAD_FLAG__AUX  0x1
+#define BM_BCH_DEBUG0_KES_DEBUG_MODE4K	0x00002000
+#define BV_BCH_DEBUG0_KES_DEBUG_MODE4K__4k 0x1
+#define BV_BCH_DEBUG0_KES_DEBUG_MODE4K__2k 0x1
+#define BM_BCH_DEBUG0_KES_DEBUG_KICK	0x00001000
+#define BM_BCH_DEBUG0_KES_STANDALONE	0x00000800
+#define BV_BCH_DEBUG0_KES_STANDALONE__NORMAL    0x0
+#define BV_BCH_DEBUG0_KES_STANDALONE__TEST_MODE 0x1
+#define BM_BCH_DEBUG0_KES_DEBUG_STEP	0x00000400
+#define BM_BCH_DEBUG0_KES_DEBUG_STALL	0x00000200
+#define BV_BCH_DEBUG0_KES_DEBUG_STALL__NORMAL 0x0
+#define BV_BCH_DEBUG0_KES_DEBUG_STALL__WAIT   0x1
+#define BM_BCH_DEBUG0_BM_KES_TEST_BYPASS	0x00000100
+#define BV_BCH_DEBUG0_BM_KES_TEST_BYPASS__NORMAL    0x0
+#define BV_BCH_DEBUG0_BM_KES_TEST_BYPASS__TEST_MODE 0x1
+#define BP_BCH_DEBUG0_RSVD0	6
+#define BM_BCH_DEBUG0_RSVD0	0x000000C0
+#define BF_BCH_DEBUG0_RSVD0(v)  \
+		(((v) << 6) & BM_BCH_DEBUG0_RSVD0)
+#define BP_BCH_DEBUG0_DEBUG_REG_SELECT	0
+#define BM_BCH_DEBUG0_DEBUG_REG_SELECT	0x0000003F
+#define BF_BCH_DEBUG0_DEBUG_REG_SELECT(v)  \
+		(((v) << 0) & BM_BCH_DEBUG0_DEBUG_REG_SELECT)
+
+/*============================================================================*/
+
+#define HW_BCH_DBGKESREAD	(0x00000110)
+
+#define BP_BCH_DBGKESREAD_VALUES	0
+#define BM_BCH_DBGKESREAD_VALUES	0xFFFFFFFF
+#define BF_BCH_DBGKESREAD_VALUES(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_DBGCSFEREAD	(0x00000120)
+
+#define BP_BCH_DBGCSFEREAD_VALUES	0
+#define BM_BCH_DBGCSFEREAD_VALUES	0xFFFFFFFF
+#define BF_BCH_DBGCSFEREAD_VALUES(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_DBGSYNDGENREAD	(0x00000130)
+
+#define BP_BCH_DBGSYNDGENREAD_VALUES	0
+#define BM_BCH_DBGSYNDGENREAD_VALUES	0xFFFFFFFF
+#define BF_BCH_DBGSYNDGENREAD_VALUES(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_DBGAHBMREAD	(0x00000140)
+
+#define BP_BCH_DBGAHBMREAD_VALUES	0
+#define BM_BCH_DBGAHBMREAD_VALUES	0xFFFFFFFF
+#define BF_BCH_DBGAHBMREAD_VALUES(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_BLOCKNAME	(0x00000150)
+
+#define BP_BCH_BLOCKNAME_NAME	0
+#define BM_BCH_BLOCKNAME_NAME	0xFFFFFFFF
+#define BF_BCH_BLOCKNAME_NAME(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_VERSION	(0x00000160)
+
+#define BP_BCH_VERSION_MAJOR	24
+#define BM_BCH_VERSION_MAJOR	0xFF000000
+#define BF_BCH_VERSION_MAJOR(v) \
+		(((v) << 24) & BM_BCH_VERSION_MAJOR)
+#define BP_BCH_VERSION_MINOR	16
+#define BM_BCH_VERSION_MINOR	0x00FF0000
+#define BF_BCH_VERSION_MINOR(v)  \
+		(((v) << 16) & BM_BCH_VERSION_MINOR)
+#define BP_BCH_VERSION_STEP	0
+#define BM_BCH_VERSION_STEP	0x0000FFFF
+#define BF_BCH_VERSION_STEP(v)  \
+		(((v) << 0) & BM_BCH_VERSION_STEP)
+
+/*============================================================================*/
+
+#endif
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-bch-regs-v1.h b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-bch-regs-v1.h
new file mode 100644
index 000000000000..692db086de4d
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-bch-regs-v1.h
@@ -0,0 +1,557 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ * Xml Revision: 2.5
+ * Template revision: 26195
+ */
+
+#ifndef __GPMI_NFC_BCH_REGS_H
+#define __GPMI_NFC_BCH_REGS_H
+
+/*============================================================================*/
+
+#define HW_BCH_CTRL	(0x00000000)
+#define HW_BCH_CTRL_SET	(0x00000004)
+#define HW_BCH_CTRL_CLR	(0x00000008)
+#define HW_BCH_CTRL_TOG	(0x0000000c)
+
+#define BM_BCH_CTRL_SFTRST	0x80000000
+#define BV_BCH_CTRL_SFTRST__RUN   0x0
+#define BV_BCH_CTRL_SFTRST__RESET 0x1
+#define BM_BCH_CTRL_CLKGATE	0x40000000
+#define BV_BCH_CTRL_CLKGATE__RUN     0x0
+#define BV_BCH_CTRL_CLKGATE__NO_CLKS 0x1
+#define BP_BCH_CTRL_RSVD5	23
+#define BM_BCH_CTRL_RSVD5	0x3F800000
+#define BF_BCH_CTRL_RSVD5(v)  \
+		(((v) << 23) & BM_BCH_CTRL_RSVD5)
+#define BM_BCH_CTRL_DEBUGSYNDROME	0x00400000
+#define BP_BCH_CTRL_RSVD4	20
+#define BM_BCH_CTRL_RSVD4	0x00300000
+#define BF_BCH_CTRL_RSVD4(v)  \
+		(((v) << 20) & BM_BCH_CTRL_RSVD4)
+#define BP_BCH_CTRL_M2M_LAYOUT	18
+#define BM_BCH_CTRL_M2M_LAYOUT	0x000C0000
+#define BF_BCH_CTRL_M2M_LAYOUT(v)  \
+		(((v) << 18) & BM_BCH_CTRL_M2M_LAYOUT)
+#define BM_BCH_CTRL_M2M_ENCODE	0x00020000
+#define BM_BCH_CTRL_M2M_ENABLE	0x00010000
+#define BP_BCH_CTRL_RSVD3	11
+#define BM_BCH_CTRL_RSVD3	0x0000F800
+#define BF_BCH_CTRL_RSVD3(v)  \
+		(((v) << 11) & BM_BCH_CTRL_RSVD3)
+#define BM_BCH_CTRL_DEBUG_STALL_IRQ_EN	0x00000400
+#define BM_BCH_CTRL_RSVD2	0x00000200
+#define BM_BCH_CTRL_COMPLETE_IRQ_EN	0x00000100
+#define BP_BCH_CTRL_RSVD1	4
+#define BM_BCH_CTRL_RSVD1	0x000000F0
+#define BF_BCH_CTRL_RSVD1(v)  \
+		(((v) << 4) & BM_BCH_CTRL_RSVD1)
+#define BM_BCH_CTRL_BM_ERROR_IRQ	0x00000008
+#define BM_BCH_CTRL_DEBUG_STALL_IRQ	0x00000004
+#define BM_BCH_CTRL_RSVD0	0x00000002
+#define BM_BCH_CTRL_COMPLETE_IRQ	0x00000001
+
+/*============================================================================*/
+
+#define HW_BCH_STATUS0	(0x00000010)
+
+#define BP_BCH_STATUS0_HANDLE	20
+#define BM_BCH_STATUS0_HANDLE	0xFFF00000
+#define BF_BCH_STATUS0_HANDLE(v) \
+		(((v) << 20) & BM_BCH_STATUS0_HANDLE)
+#define BP_BCH_STATUS0_COMPLETED_CE	16
+#define BM_BCH_STATUS0_COMPLETED_CE	0x000F0000
+#define BF_BCH_STATUS0_COMPLETED_CE(v)  \
+		(((v) << 16) & BM_BCH_STATUS0_COMPLETED_CE)
+#define BP_BCH_STATUS0_STATUS_BLK0	8
+#define BM_BCH_STATUS0_STATUS_BLK0	0x0000FF00
+#define BF_BCH_STATUS0_STATUS_BLK0(v)  \
+		(((v) << 8) & BM_BCH_STATUS0_STATUS_BLK0)
+#define BV_BCH_STATUS0_STATUS_BLK0__ZERO          0x00
+#define BV_BCH_STATUS0_STATUS_BLK0__ERROR1        0x01
+#define BV_BCH_STATUS0_STATUS_BLK0__ERROR2        0x02
+#define BV_BCH_STATUS0_STATUS_BLK0__ERROR3        0x03
+#define BV_BCH_STATUS0_STATUS_BLK0__ERROR4        0x04
+#define BV_BCH_STATUS0_STATUS_BLK0__UNCORRECTABLE 0xFE
+#define BV_BCH_STATUS0_STATUS_BLK0__ERASED        0xFF
+#define BP_BCH_STATUS0_RSVD1	5
+#define BM_BCH_STATUS0_RSVD1	0x000000E0
+#define BF_BCH_STATUS0_RSVD1(v)  \
+		(((v) << 5) & BM_BCH_STATUS0_RSVD1)
+#define BM_BCH_STATUS0_ALLONES	0x00000010
+#define BM_BCH_STATUS0_CORRECTED	0x00000008
+#define BM_BCH_STATUS0_UNCORRECTABLE	0x00000004
+#define BP_BCH_STATUS0_RSVD0	0
+#define BM_BCH_STATUS0_RSVD0	0x00000003
+#define BF_BCH_STATUS0_RSVD0(v)  \
+		(((v) << 0) & BM_BCH_STATUS0_RSVD0)
+
+/*============================================================================*/
+
+#define HW_BCH_MODE	(0x00000020)
+
+#define BP_BCH_MODE_RSVD	8
+#define BM_BCH_MODE_RSVD	0xFFFFFF00
+#define BF_BCH_MODE_RSVD(v) \
+		(((v) << 8) & BM_BCH_MODE_RSVD)
+#define BP_BCH_MODE_ERASE_THRESHOLD	0
+#define BM_BCH_MODE_ERASE_THRESHOLD	0x000000FF
+#define BF_BCH_MODE_ERASE_THRESHOLD(v)  \
+		(((v) << 0) & BM_BCH_MODE_ERASE_THRESHOLD)
+
+/*============================================================================*/
+
+#define HW_BCH_ENCODEPTR	(0x00000030)
+
+#define BP_BCH_ENCODEPTR_ADDR	0
+#define BM_BCH_ENCODEPTR_ADDR	0xFFFFFFFF
+#define BF_BCH_ENCODEPTR_ADDR(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_DATAPTR	(0x00000040)
+
+#define BP_BCH_DATAPTR_ADDR	0
+#define BM_BCH_DATAPTR_ADDR	0xFFFFFFFF
+#define BF_BCH_DATAPTR_ADDR(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_METAPTR	(0x00000050)
+
+#define BP_BCH_METAPTR_ADDR	0
+#define BM_BCH_METAPTR_ADDR	0xFFFFFFFF
+#define BF_BCH_METAPTR_ADDR(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_LAYOUTSELECT	(0x00000070)
+
+#define BP_BCH_LAYOUTSELECT_CS15_SELECT	30
+#define BM_BCH_LAYOUTSELECT_CS15_SELECT	0xC0000000
+#define BF_BCH_LAYOUTSELECT_CS15_SELECT(v) \
+		(((v) << 30) & BM_BCH_LAYOUTSELECT_CS15_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS14_SELECT	28
+#define BM_BCH_LAYOUTSELECT_CS14_SELECT	0x30000000
+#define BF_BCH_LAYOUTSELECT_CS14_SELECT(v)  \
+		(((v) << 28) & BM_BCH_LAYOUTSELECT_CS14_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS13_SELECT	26
+#define BM_BCH_LAYOUTSELECT_CS13_SELECT	0x0C000000
+#define BF_BCH_LAYOUTSELECT_CS13_SELECT(v)  \
+		(((v) << 26) & BM_BCH_LAYOUTSELECT_CS13_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS12_SELECT	24
+#define BM_BCH_LAYOUTSELECT_CS12_SELECT	0x03000000
+#define BF_BCH_LAYOUTSELECT_CS12_SELECT(v)  \
+		(((v) << 24) & BM_BCH_LAYOUTSELECT_CS12_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS11_SELECT	22
+#define BM_BCH_LAYOUTSELECT_CS11_SELECT	0x00C00000
+#define BF_BCH_LAYOUTSELECT_CS11_SELECT(v)  \
+		(((v) << 22) & BM_BCH_LAYOUTSELECT_CS11_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS10_SELECT	20
+#define BM_BCH_LAYOUTSELECT_CS10_SELECT	0x00300000
+#define BF_BCH_LAYOUTSELECT_CS10_SELECT(v)  \
+		(((v) << 20) & BM_BCH_LAYOUTSELECT_CS10_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS9_SELECT	18
+#define BM_BCH_LAYOUTSELECT_CS9_SELECT	0x000C0000
+#define BF_BCH_LAYOUTSELECT_CS9_SELECT(v)  \
+		(((v) << 18) & BM_BCH_LAYOUTSELECT_CS9_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS8_SELECT	16
+#define BM_BCH_LAYOUTSELECT_CS8_SELECT	0x00030000
+#define BF_BCH_LAYOUTSELECT_CS8_SELECT(v)  \
+		(((v) << 16) & BM_BCH_LAYOUTSELECT_CS8_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS7_SELECT	14
+#define BM_BCH_LAYOUTSELECT_CS7_SELECT	0x0000C000
+#define BF_BCH_LAYOUTSELECT_CS7_SELECT(v)  \
+		(((v) << 14) & BM_BCH_LAYOUTSELECT_CS7_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS6_SELECT	12
+#define BM_BCH_LAYOUTSELECT_CS6_SELECT	0x00003000
+#define BF_BCH_LAYOUTSELECT_CS6_SELECT(v)  \
+		(((v) << 12) & BM_BCH_LAYOUTSELECT_CS6_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS5_SELECT	10
+#define BM_BCH_LAYOUTSELECT_CS5_SELECT	0x00000C00
+#define BF_BCH_LAYOUTSELECT_CS5_SELECT(v)  \
+		(((v) << 10) & BM_BCH_LAYOUTSELECT_CS5_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS4_SELECT	8
+#define BM_BCH_LAYOUTSELECT_CS4_SELECT	0x00000300
+#define BF_BCH_LAYOUTSELECT_CS4_SELECT(v)  \
+		(((v) << 8) & BM_BCH_LAYOUTSELECT_CS4_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS3_SELECT	6
+#define BM_BCH_LAYOUTSELECT_CS3_SELECT	0x000000C0
+#define BF_BCH_LAYOUTSELECT_CS3_SELECT(v)  \
+		(((v) << 6) & BM_BCH_LAYOUTSELECT_CS3_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS2_SELECT	4
+#define BM_BCH_LAYOUTSELECT_CS2_SELECT	0x00000030
+#define BF_BCH_LAYOUTSELECT_CS2_SELECT(v)  \
+		(((v) << 4) & BM_BCH_LAYOUTSELECT_CS2_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS1_SELECT	2
+#define BM_BCH_LAYOUTSELECT_CS1_SELECT	0x0000000C
+#define BF_BCH_LAYOUTSELECT_CS1_SELECT(v)  \
+		(((v) << 2) & BM_BCH_LAYOUTSELECT_CS1_SELECT)
+#define BP_BCH_LAYOUTSELECT_CS0_SELECT	0
+#define BM_BCH_LAYOUTSELECT_CS0_SELECT	0x00000003
+#define BF_BCH_LAYOUTSELECT_CS0_SELECT(v)  \
+		(((v) << 0) & BM_BCH_LAYOUTSELECT_CS0_SELECT)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH0LAYOUT0	(0x00000080)
+
+#define BP_BCH_FLASH0LAYOUT0_NBLOCKS	24
+#define BM_BCH_FLASH0LAYOUT0_NBLOCKS	0xFF000000
+#define BF_BCH_FLASH0LAYOUT0_NBLOCKS(v) \
+		(((v) << 24) & BM_BCH_FLASH0LAYOUT0_NBLOCKS)
+#define BP_BCH_FLASH0LAYOUT0_META_SIZE	16
+#define BM_BCH_FLASH0LAYOUT0_META_SIZE	0x00FF0000
+#define BF_BCH_FLASH0LAYOUT0_META_SIZE(v)  \
+		(((v) << 16) & BM_BCH_FLASH0LAYOUT0_META_SIZE)
+#define BP_BCH_FLASH0LAYOUT0_ECC0	12
+#define BM_BCH_FLASH0LAYOUT0_ECC0	0x0000F000
+#define BF_BCH_FLASH0LAYOUT0_ECC0(v)  \
+		(((v) << 12) & BM_BCH_FLASH0LAYOUT0_ECC0)
+#define BV_BCH_FLASH0LAYOUT0_ECC0__NONE  0x0
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC2  0x1
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC4  0x2
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC6  0x3
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC8  0x4
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC10 0x5
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC12 0x6
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC14 0x7
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC16 0x8
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC18 0x9
+#define BV_BCH_FLASH0LAYOUT0_ECC0__ECC20 0xA
+#define BP_BCH_FLASH0LAYOUT0_DATA0_SIZE	0
+#define BM_BCH_FLASH0LAYOUT0_DATA0_SIZE	0x00000FFF
+#define BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH0LAYOUT0_DATA0_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH0LAYOUT1	(0x00000090)
+
+#define BP_BCH_FLASH0LAYOUT1_PAGE_SIZE	16
+#define BM_BCH_FLASH0LAYOUT1_PAGE_SIZE	0xFFFF0000
+#define BF_BCH_FLASH0LAYOUT1_PAGE_SIZE(v) \
+		(((v) << 16) & BM_BCH_FLASH0LAYOUT1_PAGE_SIZE)
+#define BP_BCH_FLASH0LAYOUT1_ECCN	12
+#define BM_BCH_FLASH0LAYOUT1_ECCN	0x0000F000
+#define BF_BCH_FLASH0LAYOUT1_ECCN(v)  \
+		(((v) << 12) & BM_BCH_FLASH0LAYOUT1_ECCN)
+#define BV_BCH_FLASH0LAYOUT1_ECCN__NONE  0x0
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC2  0x1
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC4  0x2
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC6  0x3
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC8  0x4
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC10 0x5
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC12 0x6
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC14 0x7
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC16 0x8
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC18 0x9
+#define BV_BCH_FLASH0LAYOUT1_ECCN__ECC20 0xA
+#define BP_BCH_FLASH0LAYOUT1_DATAN_SIZE	0
+#define BM_BCH_FLASH0LAYOUT1_DATAN_SIZE	0x00000FFF
+#define BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH0LAYOUT1_DATAN_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH1LAYOUT0	(0x000000a0)
+
+#define BP_BCH_FLASH1LAYOUT0_NBLOCKS	24
+#define BM_BCH_FLASH1LAYOUT0_NBLOCKS	0xFF000000
+#define BF_BCH_FLASH1LAYOUT0_NBLOCKS(v) \
+		(((v) << 24) & BM_BCH_FLASH1LAYOUT0_NBLOCKS)
+#define BP_BCH_FLASH1LAYOUT0_META_SIZE	16
+#define BM_BCH_FLASH1LAYOUT0_META_SIZE	0x00FF0000
+#define BF_BCH_FLASH1LAYOUT0_META_SIZE(v)  \
+		(((v) << 16) & BM_BCH_FLASH1LAYOUT0_META_SIZE)
+#define BP_BCH_FLASH1LAYOUT0_ECC0	12
+#define BM_BCH_FLASH1LAYOUT0_ECC0	0x0000F000
+#define BF_BCH_FLASH1LAYOUT0_ECC0(v)  \
+		(((v) << 12) & BM_BCH_FLASH1LAYOUT0_ECC0)
+#define BV_BCH_FLASH1LAYOUT0_ECC0__NONE  0x0
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC2  0x1
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC4  0x2
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC6  0x3
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC8  0x4
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC10 0x5
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC12 0x6
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC14 0x7
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC16 0x8
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC18 0x9
+#define BV_BCH_FLASH1LAYOUT0_ECC0__ECC20 0xA
+#define BP_BCH_FLASH1LAYOUT0_DATA0_SIZE	0
+#define BM_BCH_FLASH1LAYOUT0_DATA0_SIZE	0x00000FFF
+#define BF_BCH_FLASH1LAYOUT0_DATA0_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH1LAYOUT0_DATA0_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH1LAYOUT1	(0x000000b0)
+
+#define BP_BCH_FLASH1LAYOUT1_PAGE_SIZE	16
+#define BM_BCH_FLASH1LAYOUT1_PAGE_SIZE	0xFFFF0000
+#define BF_BCH_FLASH1LAYOUT1_PAGE_SIZE(v) \
+		(((v) << 16) & BM_BCH_FLASH1LAYOUT1_PAGE_SIZE)
+#define BP_BCH_FLASH1LAYOUT1_ECCN	12
+#define BM_BCH_FLASH1LAYOUT1_ECCN	0x0000F000
+#define BF_BCH_FLASH1LAYOUT1_ECCN(v)  \
+		(((v) << 12) & BM_BCH_FLASH1LAYOUT1_ECCN)
+#define BV_BCH_FLASH1LAYOUT1_ECCN__NONE  0x0
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC2  0x1
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC4  0x2
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC6  0x3
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC8  0x4
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC10 0x5
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC12 0x6
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC14 0x7
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC16 0x8
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC18 0x9
+#define BV_BCH_FLASH1LAYOUT1_ECCN__ECC20 0xA
+#define BP_BCH_FLASH1LAYOUT1_DATAN_SIZE	0
+#define BM_BCH_FLASH1LAYOUT1_DATAN_SIZE	0x00000FFF
+#define BF_BCH_FLASH1LAYOUT1_DATAN_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH1LAYOUT1_DATAN_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH2LAYOUT0	(0x000000c0)
+
+#define BP_BCH_FLASH2LAYOUT0_NBLOCKS	24
+#define BM_BCH_FLASH2LAYOUT0_NBLOCKS	0xFF000000
+#define BF_BCH_FLASH2LAYOUT0_NBLOCKS(v) \
+		(((v) << 24) & BM_BCH_FLASH2LAYOUT0_NBLOCKS)
+#define BP_BCH_FLASH2LAYOUT0_META_SIZE	16
+#define BM_BCH_FLASH2LAYOUT0_META_SIZE	0x00FF0000
+#define BF_BCH_FLASH2LAYOUT0_META_SIZE(v)  \
+		(((v) << 16) & BM_BCH_FLASH2LAYOUT0_META_SIZE)
+#define BP_BCH_FLASH2LAYOUT0_ECC0	12
+#define BM_BCH_FLASH2LAYOUT0_ECC0	0x0000F000
+#define BF_BCH_FLASH2LAYOUT0_ECC0(v)  \
+		(((v) << 12) & BM_BCH_FLASH2LAYOUT0_ECC0)
+#define BV_BCH_FLASH2LAYOUT0_ECC0__NONE  0x0
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC2  0x1
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC4  0x2
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC6  0x3
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC8  0x4
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC10 0x5
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC12 0x6
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC14 0x7
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC16 0x8
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC18 0x9
+#define BV_BCH_FLASH2LAYOUT0_ECC0__ECC20 0xA
+#define BP_BCH_FLASH2LAYOUT0_DATA0_SIZE	0
+#define BM_BCH_FLASH2LAYOUT0_DATA0_SIZE	0x00000FFF
+#define BF_BCH_FLASH2LAYOUT0_DATA0_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH2LAYOUT0_DATA0_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH2LAYOUT1	(0x000000d0)
+
+#define BP_BCH_FLASH2LAYOUT1_PAGE_SIZE	16
+#define BM_BCH_FLASH2LAYOUT1_PAGE_SIZE	0xFFFF0000
+#define BF_BCH_FLASH2LAYOUT1_PAGE_SIZE(v) \
+		(((v) << 16) & BM_BCH_FLASH2LAYOUT1_PAGE_SIZE)
+#define BP_BCH_FLASH2LAYOUT1_ECCN	12
+#define BM_BCH_FLASH2LAYOUT1_ECCN	0x0000F000
+#define BF_BCH_FLASH2LAYOUT1_ECCN(v)  \
+		(((v) << 12) & BM_BCH_FLASH2LAYOUT1_ECCN)
+#define BV_BCH_FLASH2LAYOUT1_ECCN__NONE  0x0
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC2  0x1
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC4  0x2
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC6  0x3
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC8  0x4
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC10 0x5
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC12 0x6
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC14 0x7
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC16 0x8
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC18 0x9
+#define BV_BCH_FLASH2LAYOUT1_ECCN__ECC20 0xA
+#define BP_BCH_FLASH2LAYOUT1_DATAN_SIZE	0
+#define BM_BCH_FLASH2LAYOUT1_DATAN_SIZE	0x00000FFF
+#define BF_BCH_FLASH2LAYOUT1_DATAN_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH2LAYOUT1_DATAN_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH3LAYOUT0	(0x000000e0)
+
+#define BP_BCH_FLASH3LAYOUT0_NBLOCKS	24
+#define BM_BCH_FLASH3LAYOUT0_NBLOCKS	0xFF000000
+#define BF_BCH_FLASH3LAYOUT0_NBLOCKS(v) \
+		(((v) << 24) & BM_BCH_FLASH3LAYOUT0_NBLOCKS)
+#define BP_BCH_FLASH3LAYOUT0_META_SIZE	16
+#define BM_BCH_FLASH3LAYOUT0_META_SIZE	0x00FF0000
+#define BF_BCH_FLASH3LAYOUT0_META_SIZE(v)  \
+		(((v) << 16) & BM_BCH_FLASH3LAYOUT0_META_SIZE)
+#define BP_BCH_FLASH3LAYOUT0_ECC0	12
+#define BM_BCH_FLASH3LAYOUT0_ECC0	0x0000F000
+#define BF_BCH_FLASH3LAYOUT0_ECC0(v)  \
+		(((v) << 12) & BM_BCH_FLASH3LAYOUT0_ECC0)
+#define BV_BCH_FLASH3LAYOUT0_ECC0__NONE  0x0
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC2  0x1
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC4  0x2
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC6  0x3
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC8  0x4
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC10 0x5
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC12 0x6
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC14 0x7
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC16 0x8
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC18 0x9
+#define BV_BCH_FLASH3LAYOUT0_ECC0__ECC20 0xA
+#define BP_BCH_FLASH3LAYOUT0_DATA0_SIZE	0
+#define BM_BCH_FLASH3LAYOUT0_DATA0_SIZE	0x00000FFF
+#define BF_BCH_FLASH3LAYOUT0_DATA0_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH3LAYOUT0_DATA0_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_FLASH3LAYOUT1	(0x000000f0)
+
+#define BP_BCH_FLASH3LAYOUT1_PAGE_SIZE	16
+#define BM_BCH_FLASH3LAYOUT1_PAGE_SIZE	0xFFFF0000
+#define BF_BCH_FLASH3LAYOUT1_PAGE_SIZE(v) \
+		(((v) << 16) & BM_BCH_FLASH3LAYOUT1_PAGE_SIZE)
+#define BP_BCH_FLASH3LAYOUT1_ECCN	12
+#define BM_BCH_FLASH3LAYOUT1_ECCN	0x0000F000
+#define BF_BCH_FLASH3LAYOUT1_ECCN(v)  \
+		(((v) << 12) & BM_BCH_FLASH3LAYOUT1_ECCN)
+#define BV_BCH_FLASH3LAYOUT1_ECCN__NONE  0x0
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC2  0x1
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC4  0x2
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC6  0x3
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC8  0x4
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC10 0x5
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC12 0x6
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC14 0x7
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC16 0x8
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC18 0x9
+#define BV_BCH_FLASH3LAYOUT1_ECCN__ECC20 0xA
+#define BP_BCH_FLASH3LAYOUT1_DATAN_SIZE	0
+#define BM_BCH_FLASH3LAYOUT1_DATAN_SIZE	0x00000FFF
+#define BF_BCH_FLASH3LAYOUT1_DATAN_SIZE(v)  \
+		(((v) << 0) & BM_BCH_FLASH3LAYOUT1_DATAN_SIZE)
+
+/*============================================================================*/
+
+#define HW_BCH_DEBUG0	(0x00000100)
+#define HW_BCH_DEBUG0_SET	(0x00000104)
+#define HW_BCH_DEBUG0_CLR	(0x00000108)
+#define HW_BCH_DEBUG0_TOG	(0x0000010c)
+
+#define BP_BCH_DEBUG0_RSVD1	27
+#define BM_BCH_DEBUG0_RSVD1	0xF8000000
+#define BF_BCH_DEBUG0_RSVD1(v) \
+		(((v) << 27) & BM_BCH_DEBUG0_RSVD1)
+#define BM_BCH_DEBUG0_ROM_BIST_ENABLE	0x04000000
+#define BM_BCH_DEBUG0_ROM_BIST_COMPLETE	0x02000000
+#define BP_BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL	16
+#define BM_BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL	0x01FF0000
+#define BF_BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL(v)  \
+		(((v) << 16) & BM_BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL)
+#define BV_BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL__NORMAL    0x0
+#define BV_BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL__TEST_MODE 0x1
+#define BM_BCH_DEBUG0_KES_DEBUG_SHIFT_SYND	0x00008000
+#define BM_BCH_DEBUG0_KES_DEBUG_PAYLOAD_FLAG	0x00004000
+#define BV_BCH_DEBUG0_KES_DEBUG_PAYLOAD_FLAG__DATA 0x1
+#define BV_BCH_DEBUG0_KES_DEBUG_PAYLOAD_FLAG__AUX  0x1
+#define BM_BCH_DEBUG0_KES_DEBUG_MODE4K	0x00002000
+#define BV_BCH_DEBUG0_KES_DEBUG_MODE4K__4k 0x1
+#define BV_BCH_DEBUG0_KES_DEBUG_MODE4K__2k 0x1
+#define BM_BCH_DEBUG0_KES_DEBUG_KICK	0x00001000
+#define BM_BCH_DEBUG0_KES_STANDALONE	0x00000800
+#define BV_BCH_DEBUG0_KES_STANDALONE__NORMAL    0x0
+#define BV_BCH_DEBUG0_KES_STANDALONE__TEST_MODE 0x1
+#define BM_BCH_DEBUG0_KES_DEBUG_STEP	0x00000400
+#define BM_BCH_DEBUG0_KES_DEBUG_STALL	0x00000200
+#define BV_BCH_DEBUG0_KES_DEBUG_STALL__NORMAL 0x0
+#define BV_BCH_DEBUG0_KES_DEBUG_STALL__WAIT   0x1
+#define BM_BCH_DEBUG0_BM_KES_TEST_BYPASS	0x00000100
+#define BV_BCH_DEBUG0_BM_KES_TEST_BYPASS__NORMAL    0x0
+#define BV_BCH_DEBUG0_BM_KES_TEST_BYPASS__TEST_MODE 0x1
+#define BP_BCH_DEBUG0_RSVD0	6
+#define BM_BCH_DEBUG0_RSVD0	0x000000C0
+#define BF_BCH_DEBUG0_RSVD0(v)  \
+		(((v) << 6) & BM_BCH_DEBUG0_RSVD0)
+#define BP_BCH_DEBUG0_DEBUG_REG_SELECT	0
+#define BM_BCH_DEBUG0_DEBUG_REG_SELECT	0x0000003F
+#define BF_BCH_DEBUG0_DEBUG_REG_SELECT(v)  \
+		(((v) << 0) & BM_BCH_DEBUG0_DEBUG_REG_SELECT)
+
+/*============================================================================*/
+
+#define HW_BCH_DBGKESREAD	(0x00000110)
+
+#define BP_BCH_DBGKESREAD_VALUES	0
+#define BM_BCH_DBGKESREAD_VALUES	0xFFFFFFFF
+#define BF_BCH_DBGKESREAD_VALUES(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_DBGCSFEREAD	(0x00000120)
+
+#define BP_BCH_DBGCSFEREAD_VALUES	0
+#define BM_BCH_DBGCSFEREAD_VALUES	0xFFFFFFFF
+#define BF_BCH_DBGCSFEREAD_VALUES(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_DBGSYNDGENREAD	(0x00000130)
+
+#define BP_BCH_DBGSYNDGENREAD_VALUES	0
+#define BM_BCH_DBGSYNDGENREAD_VALUES	0xFFFFFFFF
+#define BF_BCH_DBGSYNDGENREAD_VALUES(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_DBGAHBMREAD	(0x00000140)
+
+#define BP_BCH_DBGAHBMREAD_VALUES	0
+#define BM_BCH_DBGAHBMREAD_VALUES	0xFFFFFFFF
+#define BF_BCH_DBGAHBMREAD_VALUES(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_BLOCKNAME	(0x00000150)
+
+#define BP_BCH_BLOCKNAME_NAME	0
+#define BM_BCH_BLOCKNAME_NAME	0xFFFFFFFF
+#define BF_BCH_BLOCKNAME_NAME(v)	(v)
+
+/*============================================================================*/
+
+#define HW_BCH_VERSION	(0x00000160)
+
+#define BP_BCH_VERSION_MAJOR	24
+#define BM_BCH_VERSION_MAJOR	0xFF000000
+#define BF_BCH_VERSION_MAJOR(v) \
+		(((v) << 24) & BM_BCH_VERSION_MAJOR)
+#define BP_BCH_VERSION_MINOR	16
+#define BM_BCH_VERSION_MINOR	0x00FF0000
+#define BF_BCH_VERSION_MINOR(v)  \
+		(((v) << 16) & BM_BCH_VERSION_MINOR)
+#define BP_BCH_VERSION_STEP	0
+#define BM_BCH_VERSION_STEP	0x0000FFFF
+#define BF_BCH_VERSION_STEP(v)  \
+		(((v) << 0) & BM_BCH_VERSION_STEP)
+
+/*============================================================================*/
+
+#endif
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-event-reporting.c b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-event-reporting.c
new file mode 100644
index 000000000000..45574391b0f0
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-event-reporting.c
@@ -0,0 +1,307 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "gpmi-nfc.h"
+
+#if defined(EVENT_REPORTING)
+
+/*
+ * This variable and module parameter controls whether the driver reports event
+ * information by printing to the console.
+ */
+
+static int report_events;
+module_param(report_events, int, 0600);
+
+/**
+ * struct event - A single record in the event trace.
+ *
+ * @time:         The time at which the event occurred.
+ * @nesting:      Indicates function call nesting.
+ * @description:  A description of the event.
+ */
+
+struct event {
+	ktime_t       time;
+	unsigned int  nesting;
+	char          *description;
+};
+
+/**
+ * The event trace.
+ *
+ * @overhead:  The delay to take a time stamp and nothing else.
+ * @nesting:   The current nesting level.
+ * @overflow:  Indicates the trace overflowed.
+ * @next:      Index of the next event to write.
+ * @events:    The array of events.
+ */
+
+#define MAX_EVENT_COUNT  (200)
+
+static struct {
+	ktime_t       overhead;
+	int           nesting;
+	int           overflow;
+	unsigned int  next;
+	struct event  events[MAX_EVENT_COUNT];
+} event_trace;
+
+/**
+ * gpmi_nfc_reset_event_trace() - Resets the event trace.
+ */
+void gpmi_nfc_reset_event_trace(void)
+{
+	event_trace.nesting  = 0;
+	event_trace.overflow = false;
+	event_trace.next     = 0;
+}
+
+/**
+ * gpmi_nfc_add_event() - Adds an event to the event trace.
+ *
+ * @description:  A description of the event.
+ * @delta:        A delta to the nesting level for this event [-1, 0, 1].
+ */
+void gpmi_nfc_add_event(char *description, int delta)
+{
+	struct event  *event;
+
+	if (!report_events)
+		return;
+
+	if (event_trace.overflow)
+		return;
+
+	if (event_trace.next >= MAX_EVENT_COUNT) {
+		event_trace.overflow = true;
+		return;
+	}
+
+	event = event_trace.events + event_trace.next;
+
+	event->time = ktime_get();
+
+	event->description = description;
+
+	if (!delta)
+		event->nesting = event_trace.nesting;
+	else if (delta < 0) {
+		event->nesting = event_trace.nesting - 1;
+		event_trace.nesting -= 2;
+	} else {
+		event->nesting = event_trace.nesting + 1;
+		event_trace.nesting += 2;
+	}
+
+	if (event_trace.nesting < 0)
+		event_trace.nesting = 0;
+
+	event_trace.next++;
+
+}
+
+/**
+ * gpmi_nfc_start_event_trace() - Starts an event trace.
+ *
+ * @description:  A description of the first event.
+ */
+void gpmi_nfc_start_event_trace(char *description)
+{
+
+	ktime_t  t0;
+	ktime_t  t1;
+
+	if (!report_events)
+		return;
+
+	gpmi_nfc_reset_event_trace();
+
+	t0 = ktime_get();
+	t1 = ktime_get();
+
+	event_trace.overhead = ktime_sub(t1, t0);
+
+	gpmi_nfc_add_event(description, 1);
+
+}
+
+/**
+ * gpmi_nfc_dump_event_trace() - Dumps the event trace.
+ */
+void gpmi_nfc_dump_event_trace(void)
+{
+	unsigned int  i;
+	time_t        seconds;
+	long          nanoseconds;
+	char          line[100];
+	int           o;
+	struct event  *first_event;
+	struct event  *last_event;
+	struct event  *matching_event;
+	struct event  *event;
+	ktime_t       delta;
+
+	/* Check if event reporting is turned off. */
+
+	if (!report_events)
+		return;
+
+	/* Print important facts about this event trace. */
+
+	pr_info("\n+----------------\n");
+
+	pr_info("|  Overhead    : [%d:%d]\n", event_trace.overhead.tv.sec,
+						event_trace.overhead.tv.nsec);
+
+	if (!event_trace.next) {
+		pr_info("|  No Events\n");
+		return;
+	}
+
+	first_event = event_trace.events;
+	last_event  = event_trace.events + (event_trace.next - 1);
+
+	delta = ktime_sub(last_event->time, first_event->time);
+	pr_info("|  Elapsed Time: [%d:%d]\n", delta.tv.sec, delta.tv.nsec);
+
+	if (event_trace.overflow)
+		pr_info("|  Overflow!\n");
+
+	/* Print the events in this history. */
+
+	for (i = 0, event = event_trace.events;
+					i < event_trace.next; i++, event++) {
+
+		/* Get the delta between this event and the previous event. */
+
+		if (!i) {
+			seconds     = 0;
+			nanoseconds = 0;
+		} else {
+			delta = ktime_sub(event[0].time, event[-1].time);
+			seconds     = delta.tv.sec;
+			nanoseconds = delta.tv.nsec;
+		}
+
+		/* Print the current event. */
+
+		o = 0;
+
+		o = snprintf(line, sizeof(line) - o, "|  [%ld:% 10ld]%*s %s",
+							seconds, nanoseconds,
+							event->nesting, "",
+							event->description);
+		/* Check if this is the last event in a nested series. */
+
+		if (i && (event[0].nesting < event[-1].nesting)) {
+
+			for (matching_event = event - 1;; matching_event--) {
+
+				if (matching_event < event_trace.events) {
+					matching_event = 0;
+					break;
+				}
+
+				if (matching_event->nesting == event->nesting)
+					break;
+
+			}
+
+			if (matching_event) {
+				delta = ktime_sub(event->time,
+							matching_event->time);
+				o += snprintf(line + o, sizeof(line) - o,
+						" <%d:%d]", delta.tv.sec,
+								delta.tv.nsec);
+			}
+
+		}
+
+		/* Check if this is the first event in a nested series. */
+
+		if ((i < event_trace.next - 1) &&
+				(event[0].nesting < event[1].nesting)) {
+
+			for (matching_event = event + 1;; matching_event++) {
+
+				if (matching_event >=
+					(event_trace.events+event_trace.next)) {
+					matching_event = 0;
+					break;
+				}
+
+				if (matching_event->nesting == event->nesting)
+					break;
+
+			}
+
+			if (matching_event) {
+				delta = ktime_sub(matching_event->time,
+								event->time);
+				o += snprintf(line + o, sizeof(line) - o,
+						" [%d:%d>", delta.tv.sec,
+								delta.tv.nsec);
+			}
+
+		}
+
+		pr_info("%s\n", line);
+
+	}
+
+	pr_info("+----------------\n");
+
+}
+
+/**
+ * gpmi_nfc_stop_event_trace() - Stops an event trace.
+ *
+ * @description:  A description of the last event.
+ */
+void gpmi_nfc_stop_event_trace(char *description)
+{
+	struct event  *event;
+
+	if (!report_events)
+		return;
+
+	/*
+	 * We want the end of the trace, no matter what happens. If the trace
+	 * has already overflowed, or is about to, just jam this event into the
+	 * last spot. Otherwise, add this event like any other.
+	 */
+
+	if (event_trace.overflow || (event_trace.next >= MAX_EVENT_COUNT)) {
+		event = event_trace.events + (MAX_EVENT_COUNT - 1);
+		event->time = ktime_get();
+		event->description = description;
+		event->nesting     = 0;
+	} else {
+		gpmi_nfc_add_event(description, -1);
+	}
+
+	gpmi_nfc_dump_event_trace();
+	gpmi_nfc_reset_event_trace();
+
+}
+
+#endif /* EVENT_REPORTING */
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-gpmi-regs-v0.h b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-gpmi-regs-v0.h
new file mode 100644
index 000000000000..2f9fce609a34
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-gpmi-regs-v0.h
@@ -0,0 +1,416 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
+ * Copyright 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef __GPMI_NFC_GPMI_REGS_H
+#define __GPMI_NFC_GPMI_REGS_H
+
+/*============================================================================*/
+
+#define HW_GPMI_CTRL0      (0x00000000)
+#define HW_GPMI_CTRL0_SET  (0x00000004)
+#define HW_GPMI_CTRL0_CLR  (0x00000008)
+#define HW_GPMI_CTRL0_TOG  (0x0000000c)
+
+#define BM_GPMI_CTRL0_SFTRST	     0x80000000
+#define BV_GPMI_CTRL0_SFTRST__RUN    0x0
+#define BV_GPMI_CTRL0_SFTRST__RESET  0x1
+#define BM_GPMI_CTRL0_CLKGATE           0x40000000
+#define BV_GPMI_CTRL0_CLKGATE__RUN      0x0
+#define BV_GPMI_CTRL0_CLKGATE__NO_CLKS  0x1
+#define BM_GPMI_CTRL0_RUN        0x20000000
+#define BV_GPMI_CTRL0_RUN__IDLE  0x0
+#define BV_GPMI_CTRL0_RUN__BUSY  0x1
+#define BM_GPMI_CTRL0_DEV_IRQ_EN     0x10000000
+#define BM_GPMI_CTRL0_TIMEOUT_IRQ_EN 0x08000000
+#define BM_GPMI_CTRL0_UDMA           0x04000000
+#define BV_GPMI_CTRL0_UDMA__DISABLED 0x0
+#define BV_GPMI_CTRL0_UDMA__ENABLED  0x1
+#define BP_GPMI_CTRL0_COMMAND_MODE    24
+#define BM_GPMI_CTRL0_COMMAND_MODE    0x03000000
+#define BF_GPMI_CTRL0_COMMAND_MODE(v) \
+	(((v) << 24) & BM_GPMI_CTRL0_COMMAND_MODE)
+#define BV_GPMI_CTRL0_COMMAND_MODE__WRITE            0x0
+#define BV_GPMI_CTRL0_COMMAND_MODE__READ             0x1
+#define BV_GPMI_CTRL0_COMMAND_MODE__READ_AND_COMPARE 0x2
+#define BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY   0x3
+#define BM_GPMI_CTRL0_WORD_LENGTH	   0x00800000
+#define BV_GPMI_CTRL0_WORD_LENGTH__16_BIT  0x0
+#define BV_GPMI_CTRL0_WORD_LENGTH__8_BIT   0x1
+#define BM_GPMI_CTRL0_LOCK_CS            0x00400000
+#define BV_GPMI_CTRL0_LOCK_CS__DISABLED  0x0
+#define BV_GPMI_CTRL0_LOCK_CS__ENABLED   0x1
+#define BP_GPMI_CTRL0_CS     20
+#define BM_GPMI_CTRL0_CS     0x00300000
+#define BF_GPMI_CTRL0_CS(v)  (((v) << 20) & BM_GPMI_CTRL0_CS)
+#define BP_GPMI_CTRL0_ADDRESS	  17
+#define BM_GPMI_CTRL0_ADDRESS	  0x000E0000
+#define BF_GPMI_CTRL0_ADDRESS(v)  (((v) << 17) & BM_GPMI_CTRL0_ADDRESS)
+#define BV_GPMI_CTRL0_ADDRESS__NAND_DATA  0x0
+#define BV_GPMI_CTRL0_ADDRESS__NAND_CLE   0x1
+#define BV_GPMI_CTRL0_ADDRESS__NAND_ALE   0x2
+#define BM_GPMI_CTRL0_ADDRESS_INCREMENT	  0x00010000
+#define BV_GPMI_CTRL0_ADDRESS_INCREMENT__DISABLED  0x0
+#define BV_GPMI_CTRL0_ADDRESS_INCREMENT__ENABLED   0x1
+#define BP_GPMI_CTRL0_XFER_COUNT    0
+#define BM_GPMI_CTRL0_XFER_COUNT    0x0000FFFF
+#define BF_GPMI_CTRL0_XFER_COUNT(v) \
+	(((v) << 0) & BM_GPMI_CTRL0_XFER_COUNT)
+
+/*============================================================================*/
+
+#define HW_GPMI_COMPARE  (0x00000010)
+
+#define BP_GPMI_COMPARE_MASK	 16
+#define BM_GPMI_COMPARE_MASK	 0xFFFF0000
+#define BF_GPMI_COMPARE_MASK(v)  (((v) << 16) & BM_GPMI_COMPARE_MASK)
+#define BP_GPMI_COMPARE_REFERENCE    0
+#define BM_GPMI_COMPARE_REFERENCE    0x0000FFFF
+#define BF_GPMI_COMPARE_REFERENCE(v) \
+	(((v) << 0) & BM_GPMI_COMPARE_REFERENCE)
+
+/*============================================================================*/
+
+#define HW_GPMI_ECCCTRL  (0x00000020)
+#define HW_GPMI_ECCCTRL_SET  (0x00000024)
+#define HW_GPMI_ECCCTRL_CLR  (0x00000028)
+#define HW_GPMI_ECCCTRL_TOG  (0x0000002c)
+
+#define BP_GPMI_ECCCTRL_HANDLE	   16
+#define BM_GPMI_ECCCTRL_HANDLE	   0xFFFF0000
+#define BF_GPMI_ECCCTRL_HANDLE(v)  (((v) << 16) & BM_GPMI_ECCCTRL_HANDLE)
+#define BM_GPMI_ECCCTRL_RSVD2  0x00008000
+#define BP_GPMI_ECCCTRL_ECC_CMD  13
+#define BM_GPMI_ECCCTRL_ECC_CMD  0x00006000
+#define BF_GPMI_ECCCTRL_ECC_CMD(v) (((v) << 13) & BM_GPMI_ECCCTRL_ECC_CMD)
+#define BV_GPMI_ECCCTRL_ECC_CMD__DECODE_4_BIT 0x0
+#define BV_GPMI_ECCCTRL_ECC_CMD__ENCODE_4_BIT 0x1
+#define BV_GPMI_ECCCTRL_ECC_CMD__DECODE_8_BIT 0x2
+#define BV_GPMI_ECCCTRL_ECC_CMD__ENCODE_8_BIT 0x3
+#define BV_GPMI_ECCCTRL_ECC_CMD__BCH_DECODE 0x0
+#define BV_GPMI_ECCCTRL_ECC_CMD__BCH_ENCODE 0x1
+#define BM_GPMI_ECCCTRL_ENABLE_ECC           0x00001000
+#define BV_GPMI_ECCCTRL_ENABLE_ECC__ENABLE   0x1
+#define BV_GPMI_ECCCTRL_ENABLE_ECC__DISABLE  0x0
+#define BP_GPMI_ECCCTRL_RSVD1      9
+#define BM_GPMI_ECCCTRL_RSVD1      0x00000E00
+#define BF_GPMI_ECCCTRL_RSVD1(v)   (((v) << 9) & BM_GPMI_ECCCTRL_RSVD1)
+#define BP_GPMI_ECCCTRL_BUFFER_MASK	0
+#define BM_GPMI_ECCCTRL_BUFFER_MASK	0x000001FF
+#define BF_GPMI_ECCCTRL_BUFFER_MASK(v)  \
+		(((v) << 0) & BM_GPMI_ECCCTRL_BUFFER_MASK)
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_AUXONLY 0x100
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_PAGE    0x1FF
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__AUXILIARY   0x100
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BUFFER7     0x080
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BUFFER6     0x040
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BUFFER5     0x020
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BUFFER4     0x010
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BUFFER3     0x008
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BUFFER2     0x004
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BUFFER1     0x002
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BUFFER0     0x001
+
+/*============================================================================*/
+
+#define HW_GPMI_ECCCOUNT	(0x00000030)
+
+#define BP_GPMI_ECCCOUNT_RSVD2     16
+#define BM_GPMI_ECCCOUNT_RSVD2     0xFFFF0000
+#define BF_GPMI_ECCCOUNT_RSVD2(v)  (((v) << 16) & BM_GPMI_ECCCOUNT_RSVD2)
+#define BP_GPMI_ECCCOUNT_COUNT     0
+#define BM_GPMI_ECCCOUNT_COUNT     0x0000FFFF
+#define BF_GPMI_ECCCOUNT_COUNT(v)  (((v) << 0) & BM_GPMI_ECCCOUNT_COUNT)
+
+/*============================================================================*/
+
+#define HW_GPMI_PAYLOAD	(0x00000040)
+
+#define BP_GPMI_PAYLOAD_ADDRESS	    2
+#define BM_GPMI_PAYLOAD_ADDRESS	    0xFFFFFFFC
+#define BF_GPMI_PAYLOAD_ADDRESS(v)  (((v) << 2) & BM_GPMI_PAYLOAD_ADDRESS)
+#define BP_GPMI_PAYLOAD_RSVD0     0
+#define BM_GPMI_PAYLOAD_RSVD0     0x00000003
+#define BF_GPMI_PAYLOAD_RSVD0(v)  (((v) << 0) & BM_GPMI_PAYLOAD_RSVD0)
+
+/*============================================================================*/
+
+#define HW_GPMI_AUXILIARY	(0x00000050)
+
+#define BP_GPMI_AUXILIARY_ADDRESS    2
+#define BM_GPMI_AUXILIARY_ADDRESS    0xFFFFFFFC
+#define BF_GPMI_AUXILIARY_ADDRESS(v) \
+	(((v) << 2) & BM_GPMI_AUXILIARY_ADDRESS)
+#define BP_GPMI_AUXILIARY_RSVD0     0
+#define BM_GPMI_AUXILIARY_RSVD0     0x00000003
+#define BF_GPMI_AUXILIARY_RSVD0(v)  (((v) << 0) & BM_GPMI_AUXILIARY_RSVD0)
+
+/*============================================================================*/
+
+#define HW_GPMI_CTRL1  (0x00000060)
+#define HW_GPMI_CTRL1_SET  (0x00000064)
+#define HW_GPMI_CTRL1_CLR  (0x00000068)
+#define HW_GPMI_CTRL1_TOG  (0x0000006c)
+
+#define BP_GPMI_CTRL1_RSVD2	24
+#define BM_GPMI_CTRL1_RSVD2	0xFF000000
+#define BF_GPMI_CTRL1_RSVD2(v) \
+		(((v) << 24) & BM_GPMI_CTRL1_RSVD2)
+#define BM_GPMI_CTRL1_CE3_SEL	0x00800000
+#define BM_GPMI_CTRL1_CE2_SEL	0x00400000
+#define BM_GPMI_CTRL1_CE1_SEL	0x00200000
+#define BM_GPMI_CTRL1_CE0_SEL	0x00100000
+#define BM_GPMI_CTRL1_GANGED_RDYBUSY	0x00080000
+#define BM_GPMI_CTRL1_GPMI_MODE	0x00000001
+#define BP_GPMI_CTRL1_GPMI_MODE	0
+#define BM_GPMI_CTRL1_ATA_IRQRDY_POLARITY	0x00000004
+#define BM_GPMI_CTRL1_DEV_RESET	0x00000008
+#define BM_GPMI_CTRL1_TIMEOUT_IRQ	0x00000200
+#define BM_GPMI_CTRL1_DEV_IRQ	0x00000400
+#define BM_GPMI_CTRL1_RDN_DELAY	0x0000F000
+#define BP_GPMI_CTRL1_RDN_DELAY	12
+#define BM_GPMI_CTRL1_BCH_MODE	0x00040000
+#define BP_GPMI_CTRL1_DLL_ENABLE	17
+#define BM_GPMI_CTRL1_DLL_ENABLE	0x00020000
+#define BP_GPMI_CTRL1_HALF_PERIOD	16
+#define BM_GPMI_CTRL1_HALF_PERIOD	0x00010000
+#define BP_GPMI_CTRL1_RDN_DELAY	12
+#define BM_GPMI_CTRL1_RDN_DELAY	0x0000F000
+#define BF_GPMI_CTRL1_RDN_DELAY(v)  \
+		(((v) << 12) & BM_GPMI_CTRL1_RDN_DELAY)
+#define BM_GPMI_CTRL1_DMA2ECC_MODE	0x00000800
+#define BM_GPMI_CTRL1_DEV_IRQ	0x00000400
+#define BM_GPMI_CTRL1_TIMEOUT_IRQ	0x00000200
+#define BM_GPMI_CTRL1_BURST_EN	0x00000100
+#define BM_GPMI_CTRL1_ABORT_WAIT_FOR_READY3	0x00000080
+#define BM_GPMI_CTRL1_ABORT_WAIT_FOR_READY2	0x00000040
+#define BM_GPMI_CTRL1_ABORT_WAIT_FOR_READY1	0x00000020
+#define BM_GPMI_CTRL1_ABORT_WAIT_FOR_READY0	0x00000010
+#define BM_GPMI_CTRL1_DEV_RESET	0x00000008
+#define BV_GPMI_CTRL1_DEV_RESET__ENABLED  0x0
+#define BV_GPMI_CTRL1_DEV_RESET__DISABLED 0x1
+#define BM_GPMI_CTRL1_ATA_IRQRDY_POLARITY	0x00000004
+#define BV_GPMI_CTRL1_ATA_IRQRDY_POLARITY__ACTIVELOW  0x0
+#define BV_GPMI_CTRL1_ATA_IRQRDY_POLARITY__ACTIVEHIGH 0x1
+#define BM_GPMI_CTRL1_CAMERA_MODE	0x00000002
+#define BM_GPMI_CTRL1_GPMI_MODE	0x00000001
+#define BV_GPMI_CTRL1_GPMI_MODE__NAND 0x0
+#define BV_GPMI_CTRL1_GPMI_MODE__ATA  0x1
+
+/*============================================================================*/
+
+#define HW_GPMI_TIMING0	(0x00000070)
+
+#define BP_GPMI_TIMING0_RSVD1	24
+#define BM_GPMI_TIMING0_RSVD1	0xFF000000
+#define BF_GPMI_TIMING0_RSVD1(v) \
+		(((v) << 24) & BM_GPMI_TIMING0_RSVD1)
+#define BP_GPMI_TIMING0_ADDRESS_SETUP	16
+#define BM_GPMI_TIMING0_ADDRESS_SETUP	0x00FF0000
+#define BF_GPMI_TIMING0_ADDRESS_SETUP(v)  \
+		(((v) << 16) & BM_GPMI_TIMING0_ADDRESS_SETUP)
+#define BP_GPMI_TIMING0_DATA_HOLD	8
+#define BM_GPMI_TIMING0_DATA_HOLD	0x0000FF00
+#define BF_GPMI_TIMING0_DATA_HOLD(v)  \
+		(((v) << 8) & BM_GPMI_TIMING0_DATA_HOLD)
+#define BP_GPMI_TIMING0_DATA_SETUP	0
+#define BM_GPMI_TIMING0_DATA_SETUP	0x000000FF
+#define BF_GPMI_TIMING0_DATA_SETUP(v)  \
+		(((v) << 0) & BM_GPMI_TIMING0_DATA_SETUP)
+
+/*============================================================================*/
+
+#define HW_GPMI_TIMING1	(0x00000080)
+
+#define BP_GPMI_TIMING1_DEVICE_BUSY_TIMEOUT	16
+#define BM_GPMI_TIMING1_DEVICE_BUSY_TIMEOUT	0xFFFF0000
+#define BF_GPMI_TIMING1_DEVICE_BUSY_TIMEOUT(v) \
+		(((v) << 16) & BM_GPMI_TIMING1_DEVICE_BUSY_TIMEOUT)
+#define BP_GPMI_TIMING1_RSVD1	0
+#define BM_GPMI_TIMING1_RSVD1	0x0000FFFF
+#define BF_GPMI_TIMING1_RSVD1(v)  \
+		(((v) << 0) & BM_GPMI_TIMING1_RSVD1)
+
+/*============================================================================*/
+
+#define HW_GPMI_TIMING2	(0x00000090)
+
+#define BP_GPMI_TIMING2_UDMA_TRP	24
+#define BM_GPMI_TIMING2_UDMA_TRP	0xFF000000
+#define BF_GPMI_TIMING2_UDMA_TRP(v) \
+		(((v) << 24) & BM_GPMI_TIMING2_UDMA_TRP)
+#define BP_GPMI_TIMING2_UDMA_ENV	16
+#define BM_GPMI_TIMING2_UDMA_ENV	0x00FF0000
+#define BF_GPMI_TIMING2_UDMA_ENV(v)  \
+		(((v) << 16) & BM_GPMI_TIMING2_UDMA_ENV)
+#define BP_GPMI_TIMING2_UDMA_HOLD	8
+#define BM_GPMI_TIMING2_UDMA_HOLD	0x0000FF00
+#define BF_GPMI_TIMING2_UDMA_HOLD(v)  \
+		(((v) << 8) & BM_GPMI_TIMING2_UDMA_HOLD)
+#define BP_GPMI_TIMING2_UDMA_SETUP	0
+#define BM_GPMI_TIMING2_UDMA_SETUP	0x000000FF
+#define BF_GPMI_TIMING2_UDMA_SETUP(v)  \
+		(((v) << 0) & BM_GPMI_TIMING2_UDMA_SETUP)
+
+/*============================================================================*/
+
+#define HW_GPMI_DATA	(0x000000a0)
+
+#define BP_GPMI_DATA_DATA	0
+#define BM_GPMI_DATA_DATA	0xFFFFFFFF
+#define BF_GPMI_DATA_DATA(v)	(v)
+
+/*============================================================================*/
+
+#define HW_GPMI_STAT	(0x000000b0)
+
+#define BM_GPMI_STAT_PRESENT	0x80000000
+#define BV_GPMI_STAT_PRESENT__UNAVAILABLE 0x0
+#define BV_GPMI_STAT_PRESENT__AVAILABLE   0x1
+#define BP_GPMI_STAT_RSVD1	12
+#define BM_GPMI_STAT_RSVD1	0x7FFFF000
+#define BF_GPMI_STAT_RSVD1(v)  \
+		(((v) << 12) & BM_GPMI_STAT_RSVD1)
+#define BP_GPMI_STAT_RDY_TIMEOUT	8
+#define BM_GPMI_STAT_RDY_TIMEOUT	0x00000F00
+#define BF_GPMI_STAT_RDY_TIMEOUT(v)  \
+		(((v) << 8) & BM_GPMI_STAT_RDY_TIMEOUT)
+#define BM_GPMI_STAT_ATA_IRQ	0x00000080
+#define BM_GPMI_STAT_INVALID_BUFFER_MASK	0x00000040
+#define BM_GPMI_STAT_FIFO_EMPTY	0x00000020
+#define BV_GPMI_STAT_FIFO_EMPTY__NOT_EMPTY 0x0
+#define BV_GPMI_STAT_FIFO_EMPTY__EMPTY     0x1
+#define BM_GPMI_STAT_FIFO_FULL	0x00000010
+#define BV_GPMI_STAT_FIFO_FULL__NOT_FULL 0x0
+#define BV_GPMI_STAT_FIFO_FULL__FULL     0x1
+#define BM_GPMI_STAT_DEV3_ERROR	0x00000008
+#define BM_GPMI_STAT_DEV2_ERROR	0x00000004
+#define BM_GPMI_STAT_DEV1_ERROR	0x00000002
+#define BM_GPMI_STAT_DEERROR	0x00000001
+
+/*============================================================================*/
+
+#define HW_GPMI_DEBUG	(0x000000c0)
+
+#define BM_GPMI_DEBUG_READY3	0x80000000
+#define BM_GPMI_DEBUG_READY2	0x40000000
+#define BM_GPMI_DEBUG_READY1	0x20000000
+#define BM_GPMI_DEBUG_READY0	0x10000000
+#define BM_GPMI_DEBUG_WAIT_FOR_READY_END3	0x08000000
+#define BM_GPMI_DEBUG_WAIT_FOR_READY_END2	0x04000000
+#define BM_GPMI_DEBUG_WAIT_FOR_READY_END1	0x02000000
+#define BM_GPMI_DEBUG_WAIT_FOR_READY_END0	0x01000000
+#define BM_GPMI_DEBUG_SENSE3	0x00800000
+#define BM_GPMI_DEBUG_SENSE2	0x00400000
+#define BM_GPMI_DEBUG_SENSE1	0x00200000
+#define BM_GPMI_DEBUG_SENSE0	0x00100000
+#define BM_GPMI_DEBUG_DMAREQ3	0x00080000
+#define BM_GPMI_DEBUG_DMAREQ2	0x00040000
+#define BM_GPMI_DEBUG_DMAREQ1	0x00020000
+#define BM_GPMI_DEBUG_DMAREQ0	0x00010000
+#define BP_GPMI_DEBUG_CMD_END	12
+#define BM_GPMI_DEBUG_CMD_END	0x0000F000
+#define BF_GPMI_DEBUG_CMD_END(v)  \
+		(((v) << 12) & BM_GPMI_DEBUG_CMD_END)
+#define BP_GPMI_DEBUG_UDMA_STATE	8
+#define BM_GPMI_DEBUG_UDMA_STATE	0x00000F00
+#define BF_GPMI_DEBUG_UDMA_STATE(v)  \
+		(((v) << 8) & BM_GPMI_DEBUG_UDMA_STATE)
+#define BM_GPMI_DEBUG_BUSY	0x00000080
+#define BV_GPMI_DEBUG_BUSY__DISABLED 0x0
+#define BV_GPMI_DEBUG_BUSY__ENABLED  0x1
+#define BP_GPMI_DEBUG_PIN_STATE	4
+#define BM_GPMI_DEBUG_PIN_STATE	0x00000070
+#define BF_GPMI_DEBUG_PIN_STATE(v)  \
+		(((v) << 4) & BM_GPMI_DEBUG_PIN_STATE)
+#define BV_GPMI_DEBUG_PIN_STATE__PSM_IDLE   0x0
+#define BV_GPMI_DEBUG_PIN_STATE__PSM_BYTCNT 0x1
+#define BV_GPMI_DEBUG_PIN_STATE__PSM_ADDR   0x2
+#define BV_GPMI_DEBUG_PIN_STATE__PSM_STALL  0x3
+#define BV_GPMI_DEBUG_PIN_STATE__PSM_STROBE 0x4
+#define BV_GPMI_DEBUG_PIN_STATE__PSM_ATARDY 0x5
+#define BV_GPMI_DEBUG_PIN_STATE__PSM_DHOLD  0x6
+#define BV_GPMI_DEBUG_PIN_STATE__PSM_DONE   0x7
+#define BP_GPMI_DEBUG_MAIN_STATE	0
+#define BM_GPMI_DEBUG_MAIN_STATE	0x0000000F
+#define BF_GPMI_DEBUG_MAIN_STATE(v)  \
+		(((v) << 0) & BM_GPMI_DEBUG_MAIN_STATE)
+#define BV_GPMI_DEBUG_MAIN_STATE__MSM_IDLE   0x0
+#define BV_GPMI_DEBUG_MAIN_STATE__MSM_BYTCNT 0x1
+#define BV_GPMI_DEBUG_MAIN_STATE__MSM_WAITFE 0x2
+#define BV_GPMI_DEBUG_MAIN_STATE__MSM_WAITFR 0x3
+#define BV_GPMI_DEBUG_MAIN_STATE__MSM_DMAREQ 0x4
+#define BV_GPMI_DEBUG_MAIN_STATE__MSM_DMAACK 0x5
+#define BV_GPMI_DEBUG_MAIN_STATE__MSM_WAITFF 0x6
+#define BV_GPMI_DEBUG_MAIN_STATE__MSM_LDFIFO 0x7
+#define BV_GPMI_DEBUG_MAIN_STATE__MSM_LDDMAR 0x8
+#define BV_GPMI_DEBUG_MAIN_STATE__MSM_RDCMP  0x9
+#define BV_GPMI_DEBUG_MAIN_STATE__MSM_DONE   0xA
+
+/*============================================================================*/
+
+#define HW_GPMI_VERSION	(0x000000d0)
+
+#define BP_GPMI_VERSION_MAJOR     24
+#define BM_GPMI_VERSION_MAJOR     0xFF000000
+#define BF_GPMI_VERSION_MAJOR(v)  (((v) << 24) & BM_GPMI_VERSION_MAJOR)
+#define BP_GPMI_VERSION_MINOR     16
+#define BM_GPMI_VERSION_MINOR     0x00FF0000
+#define BF_GPMI_VERSION_MINOR(v)  (((v) << 16) & BM_GPMI_VERSION_MINOR)
+#define BP_GPMI_VERSION_STEP      0
+#define BM_GPMI_VERSION_STEP      0x0000FFFF
+#define BF_GPMI_VERSION_STEP(v)   (((v) << 0) & BM_GPMI_VERSION_STEP)
+
+/*============================================================================*/
+
+#define HW_GPMI_DEBUG2       (0x000000e0)
+
+#define BP_GPMI_DEBUG2_RSVD1	16
+#define BM_GPMI_DEBUG2_RSVD1	0xFFFF0000
+#define BF_GPMI_DEBUG2_RSVD1(v)	(((v) << 16) & BM_GPMI_DEBUG2_RSVD1)
+#define BP_GPMI_DEBUG2_SYND2GPMI_BE	12
+#define BM_GPMI_DEBUG2_SYND2GPMI_BE	0x0000F000
+#define BF_GPMI_DEBUG2_SYND2GPMI_BE(v)  \
+		(((v) << 12) & BM_GPMI_DEBUG2_SYND2GPMI_BE)
+#define BM_GPMI_DEBUG2_GPMI2SYND_VALID	0x00000800
+#define BM_GPMI_DEBUG2_GPMI2SYND_READY	0x00000400
+#define BM_GPMI_DEBUG2_SYND2GPMI_VALID	0x00000200
+#define BM_GPMI_DEBUG2_SYND2GPMI_READY	0x00000100
+#define BM_GPMI_DEBUG2_VIEW_DELAYED_RDN	0x00000080
+#define BM_GPMI_DEBUG2_UPDATE_WINDOW	0x00000040
+#define BP_GPMI_DEBUG2_RDN_TAP     0
+#define BM_GPMI_DEBUG2_RDN_TAP     0x0000003F
+#define BF_GPMI_DEBUG2_RDN_TAP(v)  (((v) << 0) & BM_GPMI_DEBUG2_RDN_TAP)
+
+/*============================================================================*/
+
+#define HW_GPMI_DEBUG3       (0x000000f0)
+
+#define BP_GPMI_DEBUG3_APB_WORD_CNTR	16
+#define BM_GPMI_DEBUG3_APB_WORD_CNTR	0xFFFF0000
+#define BF_GPMI_DEBUG3_APB_WORD_CNTR(v) \
+		(((v) << 16) & BM_GPMI_DEBUG3_APB_WORD_CNTR)
+#define BP_GPMI_DEBUG3_DEV_WORD_CNTR	0
+#define BM_GPMI_DEBUG3_DEV_WORD_CNTR	0x0000FFFF
+#define BF_GPMI_DEBUG3_DEV_WORD_CNTR(v)  \
+		(((v) << 0) & BM_GPMI_DEBUG3_DEV_WORD_CNTR)
+
+/*============================================================================*/
+#endif
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-gpmi-regs-v1.h b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-gpmi-regs-v1.h
new file mode 100644
index 000000000000..dcb3b7d3fc88
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-gpmi-regs-v1.h
@@ -0,0 +1,421 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ * Xml Revision: 2.2
+ * Template revision: 26195
+ */
+
+#ifndef __GPMI_NFC_GPMI_REGS_H
+#define __GPMI_NFC_GPMI_REGS_H
+
+/*============================================================================*/
+
+#define HW_GPMI_CTRL0	(0x00000000)
+#define HW_GPMI_CTRL0_SET	(0x00000004)
+#define HW_GPMI_CTRL0_CLR	(0x00000008)
+#define HW_GPMI_CTRL0_TOG	(0x0000000c)
+
+#define BM_GPMI_CTRL0_SFTRST	0x80000000
+#define BV_GPMI_CTRL0_SFTRST__RUN   0x0
+#define BV_GPMI_CTRL0_SFTRST__RESET 0x1
+#define BM_GPMI_CTRL0_CLKGATE	0x40000000
+#define BV_GPMI_CTRL0_CLKGATE__RUN     0x0
+#define BV_GPMI_CTRL0_CLKGATE__NO_CLKS 0x1
+#define BM_GPMI_CTRL0_RUN	0x20000000
+#define BV_GPMI_CTRL0_RUN__IDLE 0x0
+#define BV_GPMI_CTRL0_RUN__BUSY 0x1
+#define BM_GPMI_CTRL0_DEV_IRQ_EN	0x10000000
+#define BM_GPMI_CTRL0_LOCK_CS	0x08000000
+#define BV_GPMI_CTRL0_LOCK_CS__DISABLED 0x0
+#define BV_GPMI_CTRL0_LOCK_CS__ENABLED  0x1
+#define BM_GPMI_CTRL0_UDMA	0x04000000
+#define BV_GPMI_CTRL0_UDMA__DISABLED 0x0
+#define BV_GPMI_CTRL0_UDMA__ENABLED  0x1
+#define BP_GPMI_CTRL0_COMMAND_MODE	24
+#define BM_GPMI_CTRL0_COMMAND_MODE	0x03000000
+#define BF_GPMI_CTRL0_COMMAND_MODE(v)  \
+		(((v) << 24) & BM_GPMI_CTRL0_COMMAND_MODE)
+#define BV_GPMI_CTRL0_COMMAND_MODE__WRITE            0x0
+#define BV_GPMI_CTRL0_COMMAND_MODE__READ             0x1
+#define BV_GPMI_CTRL0_COMMAND_MODE__READ_AND_COMPARE 0x2
+#define BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY   0x3
+#define BM_GPMI_CTRL0_WORD_LENGTH	0x00800000
+#define BV_GPMI_CTRL0_WORD_LENGTH__16_BIT 0x0
+#define BV_GPMI_CTRL0_WORD_LENGTH__8_BIT  0x1
+#define BP_GPMI_CTRL0_CS	20
+#define BM_GPMI_CTRL0_CS	0x00700000
+#define BF_GPMI_CTRL0_CS(v)  \
+		(((v) << 20) & BM_GPMI_CTRL0_CS)
+#define BP_GPMI_CTRL0_ADDRESS	17
+#define BM_GPMI_CTRL0_ADDRESS	0x000E0000
+#define BF_GPMI_CTRL0_ADDRESS(v)  \
+		(((v) << 17) & BM_GPMI_CTRL0_ADDRESS)
+#define BV_GPMI_CTRL0_ADDRESS__NAND_DATA 0x0
+#define BV_GPMI_CTRL0_ADDRESS__NAND_CLE  0x1
+#define BV_GPMI_CTRL0_ADDRESS__NAND_ALE  0x2
+#define BM_GPMI_CTRL0_ADDRESS_INCREMENT	0x00010000
+#define BV_GPMI_CTRL0_ADDRESS_INCREMENT__DISABLED 0x0
+#define BV_GPMI_CTRL0_ADDRESS_INCREMENT__ENABLED  0x1
+#define BP_GPMI_CTRL0_XFER_COUNT	0
+#define BM_GPMI_CTRL0_XFER_COUNT	0x0000FFFF
+#define BF_GPMI_CTRL0_XFER_COUNT(v)  \
+		(((v) << 0) & BM_GPMI_CTRL0_XFER_COUNT)
+
+/*============================================================================*/
+
+#define HW_GPMI_COMPARE	(0x00000010)
+
+#define BP_GPMI_COMPARE_MASK	16
+#define BM_GPMI_COMPARE_MASK	0xFFFF0000
+#define BF_GPMI_COMPARE_MASK(v) \
+		(((v) << 16) & BM_GPMI_COMPARE_MASK)
+#define BP_GPMI_COMPARE_REFERENCE	0
+#define BM_GPMI_COMPARE_REFERENCE	0x0000FFFF
+#define BF_GPMI_COMPARE_REFERENCE(v)  \
+		(((v) << 0) & BM_GPMI_COMPARE_REFERENCE)
+
+/*============================================================================*/
+
+#define HW_GPMI_ECCCTRL	(0x00000020)
+#define HW_GPMI_ECCCTRL_SET	(0x00000024)
+#define HW_GPMI_ECCCTRL_CLR	(0x00000028)
+#define HW_GPMI_ECCCTRL_TOG	(0x0000002c)
+
+#define BP_GPMI_ECCCTRL_HANDLE	16
+#define BM_GPMI_ECCCTRL_HANDLE	0xFFFF0000
+#define BF_GPMI_ECCCTRL_HANDLE(v) \
+		(((v) << 16) & BM_GPMI_ECCCTRL_HANDLE)
+#define BM_GPMI_ECCCTRL_RSVD2	0x00008000
+#define BP_GPMI_ECCCTRL_ECC_CMD	13
+#define BM_GPMI_ECCCTRL_ECC_CMD	0x00006000
+#define BF_GPMI_ECCCTRL_ECC_CMD(v)  \
+		(((v) << 13) & BM_GPMI_ECCCTRL_ECC_CMD)
+#define BV_GPMI_ECCCTRL_ECC_CMD__DECODE   0x0
+#define BV_GPMI_ECCCTRL_ECC_CMD__ENCODE   0x1
+#define BV_GPMI_ECCCTRL_ECC_CMD__RESERVE2 0x2
+#define BV_GPMI_ECCCTRL_ECC_CMD__RESERVE3 0x3
+#define BM_GPMI_ECCCTRL_ENABLE_ECC	0x00001000
+#define BV_GPMI_ECCCTRL_ENABLE_ECC__ENABLE  0x1
+#define BV_GPMI_ECCCTRL_ENABLE_ECC__DISABLE 0x0
+#define BP_GPMI_ECCCTRL_RSVD1	9
+#define BM_GPMI_ECCCTRL_RSVD1	0x00000E00
+#define BF_GPMI_ECCCTRL_RSVD1(v)  \
+		(((v) << 9) & BM_GPMI_ECCCTRL_RSVD1)
+#define BP_GPMI_ECCCTRL_BUFFER_MASK	0
+#define BM_GPMI_ECCCTRL_BUFFER_MASK	0x000001FF
+#define BF_GPMI_ECCCTRL_BUFFER_MASK(v)  \
+		(((v) << 0) & BM_GPMI_ECCCTRL_BUFFER_MASK)
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_AUXONLY 0x100
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_PAGE    0x1FF
+
+/*============================================================================*/
+
+#define HW_GPMI_ECCCOUNT	(0x00000030)
+
+#define BP_GPMI_ECCCOUNT_RSVD2	16
+#define BM_GPMI_ECCCOUNT_RSVD2	0xFFFF0000
+#define BF_GPMI_ECCCOUNT_RSVD2(v) \
+		(((v) << 16) & BM_GPMI_ECCCOUNT_RSVD2)
+#define BP_GPMI_ECCCOUNT_COUNT	0
+#define BM_GPMI_ECCCOUNT_COUNT	0x0000FFFF
+#define BF_GPMI_ECCCOUNT_COUNT(v)  \
+		(((v) << 0) & BM_GPMI_ECCCOUNT_COUNT)
+
+/*============================================================================*/
+
+#define HW_GPMI_PAYLOAD	(0x00000040)
+
+#define BP_GPMI_PAYLOAD_ADDRESS	2
+#define BM_GPMI_PAYLOAD_ADDRESS	0xFFFFFFFC
+#define BF_GPMI_PAYLOAD_ADDRESS(v) \
+		(((v) << 2) & BM_GPMI_PAYLOAD_ADDRESS)
+#define BP_GPMI_PAYLOAD_RSVD0	0
+#define BM_GPMI_PAYLOAD_RSVD0	0x00000003
+#define BF_GPMI_PAYLOAD_RSVD0(v)  \
+		(((v) << 0) & BM_GPMI_PAYLOAD_RSVD0)
+
+/*============================================================================*/
+
+#define HW_GPMI_AUXILIARY	(0x00000050)
+
+#define BP_GPMI_AUXILIARY_ADDRESS	2
+#define BM_GPMI_AUXILIARY_ADDRESS	0xFFFFFFFC
+#define BF_GPMI_AUXILIARY_ADDRESS(v) \
+		(((v) << 2) & BM_GPMI_AUXILIARY_ADDRESS)
+#define BP_GPMI_AUXILIARY_RSVD0	0
+#define BM_GPMI_AUXILIARY_RSVD0	0x00000003
+#define BF_GPMI_AUXILIARY_RSVD0(v)  \
+		(((v) << 0) & BM_GPMI_AUXILIARY_RSVD0)
+
+/*============================================================================*/
+
+#define HW_GPMI_CTRL1	(0x00000060)
+#define HW_GPMI_CTRL1_SET	(0x00000064)
+#define HW_GPMI_CTRL1_CLR	(0x00000068)
+#define HW_GPMI_CTRL1_TOG	(0x0000006c)
+
+#define BP_GPMI_CTRL1_RSVD2	25
+#define BM_GPMI_CTRL1_RSVD2	0xFE000000
+#define BF_GPMI_CTRL1_RSVD2(v) \
+		(((v) << 25) & BM_GPMI_CTRL1_RSVD2)
+#define BM_GPMI_CTRL1_DECOUPLE_CS	0x01000000
+#define BP_GPMI_CTRL1_WRN_DLY_SEL	22
+#define BM_GPMI_CTRL1_WRN_DLY_SEL	0x00C00000
+#define BF_GPMI_CTRL1_WRN_DLY_SEL(v)  \
+		(((v) << 22) & BM_GPMI_CTRL1_WRN_DLY_SEL)
+#define BM_GPMI_CTRL1_RSVD1	0x00200000
+#define BM_GPMI_CTRL1_TIMEOUT_IRQ_EN	0x00100000
+#define BM_GPMI_CTRL1_GANGED_RDYBUSY	0x00080000
+#define BM_GPMI_CTRL1_BCH_MODE	0x00040000
+#define BP_GPMI_CTRL1_DLL_ENABLE	17
+#define BM_GPMI_CTRL1_DLL_ENABLE	0x00020000
+#define BP_GPMI_CTRL1_HALF_PERIOD	16
+#define BM_GPMI_CTRL1_HALF_PERIOD	0x00010000
+#define BP_GPMI_CTRL1_RDN_DELAY	12
+#define BM_GPMI_CTRL1_RDN_DELAY	0x0000F000
+#define BF_GPMI_CTRL1_RDN_DELAY(v)  \
+		(((v) << 12) & BM_GPMI_CTRL1_RDN_DELAY)
+#define BM_GPMI_CTRL1_DMA2ECC_MODE	0x00000800
+#define BM_GPMI_CTRL1_DEV_IRQ	0x00000400
+#define BM_GPMI_CTRL1_TIMEOUT_IRQ	0x00000200
+#define BM_GPMI_CTRL1_BURST_EN	0x00000100
+#define BM_GPMI_CTRL1_ABORT_WAIT_REQUEST	0x00000080
+#define BP_GPMI_CTRL1_ABORT_WAIT_FOR_READY_CHANNEL	4
+#define BM_GPMI_CTRL1_ABORT_WAIT_FOR_READY_CHANNEL	0x00000070
+#define BF_GPMI_CTRL1_ABORT_WAIT_FOR_READY_CHANNEL(v)  \
+		(((v) << 4) & BM_GPMI_CTRL1_ABORT_WAIT_FOR_READY_CHANNEL)
+#define BM_GPMI_CTRL1_DEV_RESET	0x00000008
+#define BV_GPMI_CTRL1_DEV_RESET__ENABLED  0x0
+#define BV_GPMI_CTRL1_DEV_RESET__DISABLED 0x1
+#define BM_GPMI_CTRL1_ATA_IRQRDY_POLARITY	0x00000004
+#define BV_GPMI_CTRL1_ATA_IRQRDY_POLARITY__ACTIVELOW  0x0
+#define BV_GPMI_CTRL1_ATA_IRQRDY_POLARITY__ACTIVEHIGH 0x1
+#define BM_GPMI_CTRL1_CAMERA_MODE	0x00000002
+#define BM_GPMI_CTRL1_GPMI_MODE	0x00000001
+#define BV_GPMI_CTRL1_GPMI_MODE__NAND 0x0
+#define BV_GPMI_CTRL1_GPMI_MODE__ATA  0x1
+
+/*============================================================================*/
+
+#define HW_GPMI_TIMING0	(0x00000070)
+
+#define BP_GPMI_TIMING0_RSVD1	24
+#define BM_GPMI_TIMING0_RSVD1	0xFF000000
+#define BF_GPMI_TIMING0_RSVD1(v) \
+		(((v) << 24) & BM_GPMI_TIMING0_RSVD1)
+#define BP_GPMI_TIMING0_ADDRESS_SETUP	16
+#define BM_GPMI_TIMING0_ADDRESS_SETUP	0x00FF0000
+#define BF_GPMI_TIMING0_ADDRESS_SETUP(v)  \
+		(((v) << 16) & BM_GPMI_TIMING0_ADDRESS_SETUP)
+#define BP_GPMI_TIMING0_DATA_HOLD	8
+#define BM_GPMI_TIMING0_DATA_HOLD	0x0000FF00
+#define BF_GPMI_TIMING0_DATA_HOLD(v)  \
+		(((v) << 8) & BM_GPMI_TIMING0_DATA_HOLD)
+#define BP_GPMI_TIMING0_DATA_SETUP	0
+#define BM_GPMI_TIMING0_DATA_SETUP	0x000000FF
+#define BF_GPMI_TIMING0_DATA_SETUP(v)  \
+		(((v) << 0) & BM_GPMI_TIMING0_DATA_SETUP)
+
+/*============================================================================*/
+
+#define HW_GPMI_TIMING1	(0x00000080)
+
+#define BP_GPMI_TIMING1_DEVICE_BUSY_TIMEOUT	16
+#define BM_GPMI_TIMING1_DEVICE_BUSY_TIMEOUT	0xFFFF0000
+#define BF_GPMI_TIMING1_DEVICE_BUSY_TIMEOUT(v) \
+		(((v) << 16) & BM_GPMI_TIMING1_DEVICE_BUSY_TIMEOUT)
+#define BP_GPMI_TIMING1_RSVD1	0
+#define BM_GPMI_TIMING1_RSVD1	0x0000FFFF
+#define BF_GPMI_TIMING1_RSVD1(v)  \
+		(((v) << 0) & BM_GPMI_TIMING1_RSVD1)
+
+/*============================================================================*/
+
+#define HW_GPMI_TIMING2	(0x00000090)
+
+#define BP_GPMI_TIMING2_UDMA_TRP	24
+#define BM_GPMI_TIMING2_UDMA_TRP	0xFF000000
+#define BF_GPMI_TIMING2_UDMA_TRP(v) \
+		(((v) << 24) & BM_GPMI_TIMING2_UDMA_TRP)
+#define BP_GPMI_TIMING2_UDMA_ENV	16
+#define BM_GPMI_TIMING2_UDMA_ENV	0x00FF0000
+#define BF_GPMI_TIMING2_UDMA_ENV(v)  \
+		(((v) << 16) & BM_GPMI_TIMING2_UDMA_ENV)
+#define BP_GPMI_TIMING2_UDMA_HOLD	8
+#define BM_GPMI_TIMING2_UDMA_HOLD	0x0000FF00
+#define BF_GPMI_TIMING2_UDMA_HOLD(v)  \
+		(((v) << 8) & BM_GPMI_TIMING2_UDMA_HOLD)
+#define BP_GPMI_TIMING2_UDMA_SETUP	0
+#define BM_GPMI_TIMING2_UDMA_SETUP	0x000000FF
+#define BF_GPMI_TIMING2_UDMA_SETUP(v)  \
+		(((v) << 0) & BM_GPMI_TIMING2_UDMA_SETUP)
+
+/*============================================================================*/
+
+#define HW_GPMI_DATA	(0x000000a0)
+
+#define BP_GPMI_DATA_DATA	0
+#define BM_GPMI_DATA_DATA	0xFFFFFFFF
+#define BF_GPMI_DATA_DATA(v)	(v)
+
+#define HW_GPMI_STAT	(0x000000b0)
+
+#define BP_GPMI_STAT_READY_BUSY	24
+#define BM_GPMI_STAT_READY_BUSY	0xFF000000
+#define BF_GPMI_STAT_READY_BUSY(v) \
+		(((v) << 24) & BM_GPMI_STAT_READY_BUSY)
+#define BP_GPMI_STAT_RDY_TIMEOUT	16
+#define BM_GPMI_STAT_RDY_TIMEOUT	0x00FF0000
+#define BF_GPMI_STAT_RDY_TIMEOUT(v)  \
+		(((v) << 16) & BM_GPMI_STAT_RDY_TIMEOUT)
+#define BM_GPMI_STAT_DEV7_ERROR	0x00008000
+#define BM_GPMI_STAT_DEV6_ERROR	0x00004000
+#define BM_GPMI_STAT_DEV5_ERROR	0x00002000
+#define BM_GPMI_STAT_DEV4_ERROR	0x00001000
+#define BM_GPMI_STAT_DEV3_ERROR	0x00000800
+#define BM_GPMI_STAT_DEV2_ERROR	0x00000400
+#define BM_GPMI_STAT_DEERROR	0x00000200
+#define BM_GPMI_STAT_DEV0_ERROR	0x00000100
+#define BP_GPMI_STAT_RSVD1	5
+#define BM_GPMI_STAT_RSVD1	0x000000E0
+#define BF_GPMI_STAT_RSVD1(v)  \
+		(((v) << 5) & BM_GPMI_STAT_RSVD1)
+#define BM_GPMI_STAT_ATA_IRQ	0x00000010
+#define BM_GPMI_STAT_INVALID_BUFFER_MASK	0x00000008
+#define BM_GPMI_STAT_FIFO_EMPTY	0x00000004
+#define BV_GPMI_STAT_FIFO_EMPTY__NOT_EMPTY 0x0
+#define BV_GPMI_STAT_FIFO_EMPTY__EMPTY     0x1
+#define BM_GPMI_STAT_FIFO_FULL	0x00000002
+#define BV_GPMI_STAT_FIFO_FULL__NOT_FULL 0x0
+#define BV_GPMI_STAT_FIFO_FULL__FULL     0x1
+#define BM_GPMI_STAT_PRESENT	0x00000001
+#define BV_GPMI_STAT_PRESENT__UNAVAILABLE 0x0
+#define BV_GPMI_STAT_PRESENT__AVAILABLE   0x1
+
+/*============================================================================*/
+
+#define HW_GPMI_DEBUG	(0x000000c0)
+
+#define BP_GPMI_DEBUG_WAIT_FOR_READY_END	24
+#define BM_GPMI_DEBUG_WAIT_FOR_READY_END	0xFF000000
+#define BF_GPMI_DEBUG_WAIT_FOR_READY_END(v) \
+		(((v) << 24) & BM_GPMI_DEBUG_WAIT_FOR_READY_END)
+#define BP_GPMI_DEBUG_DMA_SENSE	16
+#define BM_GPMI_DEBUG_DMA_SENSE	0x00FF0000
+#define BF_GPMI_DEBUG_DMA_SENSE(v)  \
+		(((v) << 16) & BM_GPMI_DEBUG_DMA_SENSE)
+#define BP_GPMI_DEBUG_DMAREQ	8
+#define BM_GPMI_DEBUG_DMAREQ	0x0000FF00
+#define BF_GPMI_DEBUG_DMAREQ(v)  \
+		(((v) << 8) & BM_GPMI_DEBUG_DMAREQ)
+#define BP_GPMI_DEBUG_CMD_END	0
+#define BM_GPMI_DEBUG_CMD_END	0x000000FF
+#define BF_GPMI_DEBUG_CMD_END(v)  \
+		(((v) << 0) & BM_GPMI_DEBUG_CMD_END)
+
+/*============================================================================*/
+
+#define HW_GPMI_VERSION	(0x000000d0)
+
+#define BP_GPMI_VERSION_MAJOR	24
+#define BM_GPMI_VERSION_MAJOR	0xFF000000
+#define BF_GPMI_VERSION_MAJOR(v) \
+		(((v) << 24) & BM_GPMI_VERSION_MAJOR)
+#define BP_GPMI_VERSION_MINOR	16
+#define BM_GPMI_VERSION_MINOR	0x00FF0000
+#define BF_GPMI_VERSION_MINOR(v)  \
+		(((v) << 16) & BM_GPMI_VERSION_MINOR)
+#define BP_GPMI_VERSION_STEP	0
+#define BM_GPMI_VERSION_STEP	0x0000FFFF
+#define BF_GPMI_VERSION_STEP(v)  \
+		(((v) << 0) & BM_GPMI_VERSION_STEP)
+
+/*============================================================================*/
+
+#define HW_GPMI_DEBUG2	(0x000000e0)
+
+#define BP_GPMI_DEBUG2_RSVD1	28
+#define BM_GPMI_DEBUG2_RSVD1	0xF0000000
+#define BF_GPMI_DEBUG2_RSVD1(v) \
+		(((v) << 28) & BM_GPMI_DEBUG2_RSVD1)
+#define BP_GPMI_DEBUG2_UDMA_STATE	24
+#define BM_GPMI_DEBUG2_UDMA_STATE	0x0F000000
+#define BF_GPMI_DEBUG2_UDMA_STATE(v)  \
+		(((v) << 24) & BM_GPMI_DEBUG2_UDMA_STATE)
+#define BM_GPMI_DEBUG2_BUSY	0x00800000
+#define BV_GPMI_DEBUG2_BUSY__DISABLED 0x0
+#define BV_GPMI_DEBUG2_BUSY__ENABLED  0x1
+#define BP_GPMI_DEBUG2_PIN_STATE	20
+#define BM_GPMI_DEBUG2_PIN_STATE	0x00700000
+#define BF_GPMI_DEBUG2_PIN_STATE(v)  \
+		(((v) << 20) & BM_GPMI_DEBUG2_PIN_STATE)
+#define BV_GPMI_DEBUG2_PIN_STATE__PSM_IDLE   0x0
+#define BV_GPMI_DEBUG2_PIN_STATE__PSM_BYTCNT 0x1
+#define BV_GPMI_DEBUG2_PIN_STATE__PSM_ADDR   0x2
+#define BV_GPMI_DEBUG2_PIN_STATE__PSM_STALL  0x3
+#define BV_GPMI_DEBUG2_PIN_STATE__PSM_STROBE 0x4
+#define BV_GPMI_DEBUG2_PIN_STATE__PSM_ATARDY 0x5
+#define BV_GPMI_DEBUG2_PIN_STATE__PSM_DHOLD  0x6
+#define BV_GPMI_DEBUG2_PIN_STATE__PSM_DONE   0x7
+#define BP_GPMI_DEBUG2_MAIN_STATE	16
+#define BM_GPMI_DEBUG2_MAIN_STATE	0x000F0000
+#define BF_GPMI_DEBUG2_MAIN_STATE(v)  \
+		(((v) << 16) & BM_GPMI_DEBUG2_MAIN_STATE)
+#define BV_GPMI_DEBUG2_MAIN_STATE__MSM_IDLE   0x0
+#define BV_GPMI_DEBUG2_MAIN_STATE__MSM_BYTCNT 0x1
+#define BV_GPMI_DEBUG2_MAIN_STATE__MSM_WAITFE 0x2
+#define BV_GPMI_DEBUG2_MAIN_STATE__MSM_WAITFR 0x3
+#define BV_GPMI_DEBUG2_MAIN_STATE__MSM_DMAREQ 0x4
+#define BV_GPMI_DEBUG2_MAIN_STATE__MSM_DMAACK 0x5
+#define BV_GPMI_DEBUG2_MAIN_STATE__MSM_WAITFF 0x6
+#define BV_GPMI_DEBUG2_MAIN_STATE__MSM_LDFIFO 0x7
+#define BV_GPMI_DEBUG2_MAIN_STATE__MSM_LDDMAR 0x8
+#define BV_GPMI_DEBUG2_MAIN_STATE__MSM_RDCMP  0x9
+#define BV_GPMI_DEBUG2_MAIN_STATE__MSM_DONE   0xA
+#define BP_GPMI_DEBUG2_SYND2GPMI_BE	12
+#define BM_GPMI_DEBUG2_SYND2GPMI_BE	0x0000F000
+#define BF_GPMI_DEBUG2_SYND2GPMI_BE(v)  \
+		(((v) << 12) & BM_GPMI_DEBUG2_SYND2GPMI_BE)
+#define BM_GPMI_DEBUG2_GPMI2SYND_VALID	0x00000800
+#define BM_GPMI_DEBUG2_GPMI2SYND_READY	0x00000400
+#define BM_GPMI_DEBUG2_SYND2GPMI_VALID	0x00000200
+#define BM_GPMI_DEBUG2_SYND2GPMI_READY	0x00000100
+#define BM_GPMI_DEBUG2_VIEW_DELAYED_RDN	0x00000080
+#define BM_GPMI_DEBUG2_UPDATE_WINDOW	0x00000040
+#define BP_GPMI_DEBUG2_RDN_TAP	0
+#define BM_GPMI_DEBUG2_RDN_TAP	0x0000003F
+#define BF_GPMI_DEBUG2_RDN_TAP(v)  \
+		(((v) << 0) & BM_GPMI_DEBUG2_RDN_TAP)
+
+/*============================================================================*/
+
+#define HW_GPMI_DEBUG3	(0x000000f0)
+
+#define BP_GPMI_DEBUG3_APB_WORD_CNTR	16
+#define BM_GPMI_DEBUG3_APB_WORD_CNTR	0xFFFF0000
+#define BF_GPMI_DEBUG3_APB_WORD_CNTR(v) \
+		(((v) << 16) & BM_GPMI_DEBUG3_APB_WORD_CNTR)
+#define BP_GPMI_DEBUG3_DEV_WORD_CNTR	0
+#define BM_GPMI_DEBUG3_DEV_WORD_CNTR	0x0000FFFF
+#define BF_GPMI_DEBUG3_DEV_WORD_CNTR(v)  \
+		(((v) << 0) & BM_GPMI_DEBUG3_DEV_WORD_CNTR)
+
+/*============================================================================*/
+
+#endif
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-common.c b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-common.c
new file mode 100644
index 000000000000..b38d653a21fd
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-common.c
@@ -0,0 +1,1037 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "gpmi-nfc.h"
+
+/**
+ * gpmi_nfc_bch_isr - BCH interrupt service routine.
+ *
+ * @interrupt_number:  The interrupt number.
+ * @cookie:            A cookie that contains a pointer to the owning device
+ *                     data structure.
+ */
+irqreturn_t gpmi_nfc_bch_isr(int irq, void *cookie)
+{
+	struct gpmi_nfc_data  *this      = cookie;
+	struct nfc_hal        *nfc       =  this->nfc;
+
+	gpmi_nfc_add_event("> gpmi_nfc_bch_isr", 1);
+
+	/* Clear the interrupt. */
+
+	nfc->clear_bch(this);
+
+	/* Release the base level. */
+
+	complete(&(nfc->bch_done));
+
+	/* Return success. */
+
+	gpmi_nfc_add_event("< gpmi_nfc_bch_isr", -1);
+
+	return IRQ_HANDLED;
+
+}
+
+/**
+ * gpmi_nfc_dma_isr - DMA interrupt service routine.
+ *
+ * @interrupt_number:  The interrupt number.
+ * @cookie:            A cookie that contains a pointer to the owning device
+ *                     data structure.
+ */
+irqreturn_t gpmi_nfc_dma_isr(int irq, void *cookie)
+{
+	struct gpmi_nfc_data  *this = cookie;
+	struct nfc_hal        *nfc  =  this->nfc;
+
+	gpmi_nfc_add_event("> gpmi_nfc_dma_isr", 1);
+
+	/* Acknowledge the DMA channel's interrupt. */
+
+	mxs_dma_ack_irq(nfc->isr_dma_channel);
+
+	/* Release the base level. */
+
+	complete(&(nfc->dma_done));
+
+	/* Return success. */
+
+	gpmi_nfc_add_event("< gpmi_nfc_dma_isr", -1);
+
+	return IRQ_HANDLED;
+
+}
+
+/**
+ * gpmi_nfc_dma_init() - Initializes DMA.
+ *
+ * @this:  Per-device data.
+ */
+int gpmi_nfc_dma_init(struct gpmi_nfc_data *this)
+{
+	struct device   *dev = this->dev;
+	struct nfc_hal  *nfc = this->nfc;
+	int             i;
+	int             error;
+
+	/* Allocate the DMA descriptors. */
+
+	for (i = 0; i < NFC_DMA_DESCRIPTOR_COUNT; i++) {
+		nfc->dma_descriptors[i] = mxs_dma_alloc_desc();
+		if (!nfc->dma_descriptors[i]) {
+			dev_err(dev, "Cannot allocate all DMA descriptors.\n");
+			error = -ENOMEM;
+			goto exit_descriptor_allocation;
+		}
+	}
+
+	/* If control arrives here, all is well. */
+
+	return 0;
+
+	/* Control arrives here when something has gone wrong. */
+
+exit_descriptor_allocation:
+	while (--i >= 0)
+		mxs_dma_free_desc(this->nfc->dma_descriptors[i]);
+
+	return error;
+
+}
+
+/**
+ * gpmi_nfc_dma_exit() - Shuts down DMA.
+ *
+ * @this:  Per-device data.
+ */
+void gpmi_nfc_dma_exit(struct gpmi_nfc_data *this)
+{
+	struct nfc_hal  *nfc = this->nfc;
+	int             i;
+
+	/* Free the DMA descriptors. */
+
+	for (i = 0; i < NFC_DMA_DESCRIPTOR_COUNT; i++)
+		mxs_dma_free_desc(nfc->dma_descriptors[i]);
+
+}
+
+/**
+ * gpmi_nfc_set_geometry() - Shared NFC geometry configuration.
+ *
+ * In principle, computing the NFC geometry is version-specific. However, at
+ * this writing all, versions share the same page model, so this code can also
+ * be shared.
+ *
+ * @this:  Per-device data.
+ */
+int gpmi_nfc_set_geometry(struct gpmi_nfc_data *this)
+{
+	struct device             *dev      = this->dev;
+	struct physical_geometry  *physical = &this->physical_geometry;
+	struct nfc_geometry       *geometry = &this->nfc_geometry;
+	struct boot_rom_helper    *rom      =  this->rom;
+	unsigned int              metadata_size;
+	unsigned int              status_size;
+	unsigned int              chunk_data_size_in_bits;
+	unsigned int              chunk_ecc_size_in_bits;
+	unsigned int              chunk_total_size_in_bits;
+	unsigned int              block_mark_chunk_number;
+	unsigned int              block_mark_chunk_bit_offset;
+	unsigned int              block_mark_bit_offset;
+
+	/* At this writing, we support only BCH. */
+
+	geometry->ecc_algorithm = "BCH";
+
+	/*
+	 * We always choose a metadata size of 10. Don't try to make sense of
+	 * it -- this is really only for historical compatibility.
+	 */
+
+	geometry->metadata_size_in_bytes = 10;
+
+	/*
+	 * At this writing, we always use 512-byte ECC chunks. Later hardware
+	 * will be able to support larger chunks, which will cause this
+	 * decision to move into version-specific code.
+	 */
+
+	geometry->ecc_chunk_size_in_bytes = 512;
+
+	/* Compute the page size based on the physical geometry. */
+
+	geometry->page_size_in_bytes =
+			physical->page_data_size_in_bytes +
+			physical->page_oob_size_in_bytes  ;
+
+	/*
+	 * Compute the total number of ECC chunks in a page. This includes the
+	 * slightly larger chunk at the beginning of the page, which contains
+	 * both data and metadata.
+	 */
+
+	geometry->ecc_chunk_count =
+			  physical->page_data_size_in_bytes /
+			/*---------------------------------*/
+			  geometry->ecc_chunk_size_in_bytes;
+
+	/*
+	 * We use the same ECC strength for all chunks, including the first one.
+	 * At this writing, we base our ECC strength choice entirely on the
+	 * the physical page geometry. In the future, this should be changed to
+	 * pay attention to the detailed device information we gathered earlier.
+	 */
+
+	geometry->ecc_strength = 0;
+
+	switch (physical->page_data_size_in_bytes) {
+	case 2048:
+		geometry->ecc_strength = 8;
+		break;
+	case 4096:
+		switch (physical->page_oob_size_in_bytes) {
+		case 128:
+			geometry->ecc_strength = 8;
+			break;
+		case 218:
+			geometry->ecc_strength = 16;
+			break;
+		}
+		break;
+	}
+
+	/* Check if we were able to figure out the ECC strength. */
+
+	if (!geometry->ecc_strength) {
+		dev_err(dev, "Unsupported page geometry: %u:%u\n",
+			physical->page_data_size_in_bytes,
+			physical->page_oob_size_in_bytes);
+		return !0;
+	}
+
+	/*
+	 * The payload buffer contains the data area of a page. The ECC engine
+	 * only needs what's required to hold the data.
+	 */
+
+	geometry->payload_size_in_bytes = physical->page_data_size_in_bytes;
+
+	/*
+	 * In principle, computing the auxiliary buffer geometry is NFC
+	 * version-specific. However, at this writing, all versions share the
+	 * same model, so this code can also be shared.
+	 *
+	 * The auxiliary buffer contains the metadata and the ECC status. The
+	 * metadata is padded to the nearest 32-bit boundary. The ECC status
+	 * contains one byte for every ECC chunk, and is also padded to the
+	 * nearest 32-bit boundary.
+	 */
+
+	metadata_size = (geometry->metadata_size_in_bytes + 0x3) & ~0x3;
+	status_size   = (geometry->ecc_chunk_count        + 0x3) & ~0x3;
+
+	geometry->auxiliary_size_in_bytes = metadata_size + status_size;
+	geometry->auxiliary_status_offset = metadata_size;
+
+	/* Check if we're going to do block mark swapping. */
+
+	if (!rom->swap_block_mark)
+		return 0;
+
+	/*
+	 * If control arrives here, we're doing block mark swapping, so we need
+	 * to compute the byte and bit offsets of the physical block mark within
+	 * the ECC-based view of the page data. In principle, this isn't a
+	 * difficult computation -- but it's very important and it's easy to get
+	 * it wrong, so we do it carefully.
+	 *
+	 * Note that this calculation is simpler because we use the same ECC
+	 * strength for all chunks, including the zero'th one, which contains
+	 * the metadata. The calculation would be slightly more complicated
+	 * otherwise.
+	 *
+	 * We start by computing the physical bit offset of the block mark. We
+	 * then subtract the number of metadata and ECC bits appearing before
+	 * the mark to arrive at its bit offset within the data alone.
+	 */
+
+	/* Compute some important facts about chunk geometry. */
+
+	chunk_data_size_in_bits = geometry->ecc_chunk_size_in_bytes * 8;
+	chunk_ecc_size_in_bits  = geometry->ecc_strength * 13;
+
+	chunk_total_size_in_bits =
+			chunk_data_size_in_bits + chunk_ecc_size_in_bits;
+
+	/* Compute the bit offset of the block mark within the physical page. */
+
+	block_mark_bit_offset = physical->page_data_size_in_bytes * 8;
+
+	/* Subtract the metadata bits. */
+
+	block_mark_bit_offset -= geometry->metadata_size_in_bytes * 8;
+
+	/*
+	 * Compute the chunk number (starting at zero) in which the block mark
+	 * appears.
+	 */
+
+	block_mark_chunk_number =
+			block_mark_bit_offset / chunk_total_size_in_bits;
+
+	/*
+	 * Compute the bit offset of the block mark within its chunk, and
+	 * validate it.
+	 */
+
+	block_mark_chunk_bit_offset =
+		block_mark_bit_offset -
+			(block_mark_chunk_number * chunk_total_size_in_bits);
+
+	if (block_mark_chunk_bit_offset > chunk_data_size_in_bits) {
+
+		/*
+		 * If control arrives here, the block mark actually appears in
+		 * the ECC bits of this chunk. This wont' work.
+		 */
+
+		dev_err(dev, "Unsupported page geometry "
+					"(block mark in ECC): %u:%u\n",
+					physical->page_data_size_in_bytes,
+					physical->page_oob_size_in_bytes);
+		return !0;
+
+	}
+
+	/*
+	 * Now that we know the chunk number in which the block mark appears,
+	 * we can subtract all the ECC bits that appear before it.
+	 */
+
+	block_mark_bit_offset -=
+			block_mark_chunk_number * chunk_ecc_size_in_bits;
+
+	/*
+	 * We now know the absolute bit offset of the block mark within the
+	 * ECC-based data. We can now compute the byte offset and the bit
+	 * offset within the byte.
+	 */
+
+	geometry->block_mark_byte_offset = block_mark_bit_offset / 8;
+	geometry->block_mark_bit_offset  = block_mark_bit_offset % 8;
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/*
+ * This code is useful for debugging.
+ */
+
+/*#define DUMP_DMA_CONTEXT*/
+
+#if (defined DUMP_DMA_CONTEXT)
+
+int dump_dma_context_flag;
+
+void dump_dma_context(struct gpmi_nfc_data *this, char *title)
+{
+
+	struct resources     *resources = &this->resources;
+	struct nfc_hal       *nfc       =  this->nfc;
+	struct mxs_dma_desc  **d        = nfc->dma_descriptors;
+	void                 *q;
+	uint32_t             *p;
+	unsigned int         i;
+	unsigned int         j;
+
+	if (!dump_dma_context_flag)
+		return;
+
+	pr_info("%s\n", title);
+	pr_info("======\n");
+	pr_info("\n");
+
+	/*--------------------------------------------------------------------*/
+
+	pr_info("  Descriptors\n");
+	pr_info("  -----------\n");
+	{
+
+	for (i = 0; i < NFC_DMA_DESCRIPTOR_COUNT; i++, d++) {
+		pr_info("    #%u\n", i);
+		pr_info("    --\n");
+		pr_info("    Physical Address: 0x%08x\n" , (*d)->address);
+		pr_info("    Next            : 0x%08lx\n", (*d)->cmd.next);
+		pr_info("    Command         : 0x%08lx\n", (*d)->cmd.cmd.data);
+		pr_info("    Buffer          : 0x%08x\n" , (*d)->cmd.address);
+		for (j = 0; j < 6; j++)
+			pr_info("    PIO[%u]          : 0x%08lx\n",
+						j, (*d)->cmd.pio_words[j]);
+	}
+
+	}
+	pr_info("\n");
+
+	/*--------------------------------------------------------------------*/
+
+	pr_info("  DMA\n");
+	pr_info("  ---\n");
+	{
+	void  *DMA = IO_ADDRESS(APBH_DMA_PHYS_ADDR);
+
+	p = q = DMA + 0x200;
+
+	for (i = 0; i < 7; i++) {
+		pr_info("    [0x%03x] 0x%08x\n", q - DMA, *p);
+		q += 0x10;
+		p = q;
+	}
+
+	}
+	pr_info("\n");
+
+	/*--------------------------------------------------------------------*/
+
+	pr_info("  GPMI\n");
+	pr_info("  ----\n");
+	{
+	void  *GPMI = resources->gpmi_regs;
+
+	p = q = GPMI;
+
+	for (i = 0; i < 33; i++) {
+		pr_info("    [0x%03x] 0x%08x\n", q - GPMI, *p);
+		q += 0x10;
+		p = q;
+	}
+
+	}
+	pr_info("\n");
+
+	/*--------------------------------------------------------------------*/
+
+	pr_info("  BCH\n");
+	pr_info("  ---\n");
+	{
+	void  *BCH = resources->bch_regs;
+
+	p = q = BCH;
+
+	for (i = 0; i < 22; i++) {
+		pr_info("    [0x%03x] 0x%08x\n", q - BCH, *p);
+		q += 0x10;
+		p = q;
+	}
+
+	}
+	pr_info("\n");
+
+}
+
+#endif
+
+/**
+ * gpmi_nfc_dma_go - Run a DMA channel.
+ *
+ * @this:         Per-device data structure.
+ * @dma_channel:  The DMA channel we're going to use.
+ */
+int gpmi_nfc_dma_go(struct gpmi_nfc_data *this, int  dma_channel)
+{
+	struct device     *dev       =  this->dev;
+	struct resources  *resources = &this->resources;
+	struct nfc_hal    *nfc       =  this->nfc;
+	unsigned long     timeout;
+	int               error;
+	LIST_HEAD(tmp_desc_list);
+
+	gpmi_nfc_add_event("> gpmi_nfc_dma_go", 1);
+
+	/* Get ready... */
+
+	nfc->isr_dma_channel = dma_channel;
+	init_completion(&nfc->dma_done);
+	mxs_dma_enable_irq(dma_channel, 1);
+
+	/* Go! */
+
+	#if defined(DUMP_DMA_CONTEXT)
+		dump_dma_context(this, "BEFORE");
+	#endif
+
+	mxs_dma_enable(dma_channel);
+
+	/* Wait for it to finish. */
+
+	timeout = wait_for_completion_timeout(&nfc->dma_done,
+							msecs_to_jiffies(1000));
+
+	#if defined(DUMP_DMA_CONTEXT)
+		dump_dma_context(this, "AFTER");
+	#endif
+
+	error = (!timeout) ? -ETIMEDOUT : 0;
+
+	if (error) {
+		dev_err(dev, "[%s] Chip: %u, DMA Channel: %d, Error %d\n",
+			__func__, dma_channel - resources->dma_low_channel,
+			dma_channel, error);
+		gpmi_nfc_add_event("...DMA timed out", 0);
+	} else
+		gpmi_nfc_add_event("...Finished DMA successfully", 0);
+
+	/* Clear out the descriptors we just ran. */
+
+	mxs_dma_cooked(dma_channel, &tmp_desc_list);
+
+	/* Shut the DMA channel down. */
+
+	mxs_dma_reset(dma_channel);
+	mxs_dma_enable_irq(dma_channel, 0);
+	mxs_dma_disable(dma_channel);
+
+	/* Return. */
+
+	gpmi_nfc_add_event("< gpmi_nfc_dma_go", -1);
+
+	return error;
+
+}
+
+/**
+ * ns_to_cycles - Converts time in nanoseconds to cycles.
+ *
+ * @ntime:   The time, in nanoseconds.
+ * @period:  The cycle period, in nanoseconds.
+ * @min:     The minimum allowable number of cycles.
+ */
+static unsigned int ns_to_cycles(unsigned int time,
+					unsigned int period, unsigned int min)
+{
+	unsigned int k;
+
+	/*
+	 * Compute the minimum number of cycles that entirely contain the
+	 * given time.
+	 */
+
+	k = (time + period - 1) / period;
+
+	return max(k, min);
+
+}
+
+/**
+ * gpmi_compute_hardware_timing - Apply timing to current hardware conditions.
+ *
+ * @this:             Per-device data.
+ * @hardware_timing:  A pointer to a hardware timing structure that will receive
+ *                    the results of our calculations.
+ */
+int gpmi_nfc_compute_hardware_timing(struct gpmi_nfc_data *this,
+					struct gpmi_nfc_hardware_timing *hw)
+{
+	struct gpmi_nfc_platform_data  *pdata    =  this->pdata;
+	struct physical_geometry       *physical = &this->physical_geometry;
+	struct nfc_hal                 *nfc      =  this->nfc;
+	struct gpmi_nfc_timing         target    = nfc->timing;
+	bool           improved_timing_is_available;
+	unsigned long  clock_frequency_in_hz;
+	unsigned int   clock_period_in_ns;
+	bool           dll_use_half_periods;
+	unsigned int   dll_delay_shift;
+	unsigned int   max_sample_delay_in_ns;
+	unsigned int   address_setup_in_cycles;
+	unsigned int   data_setup_in_ns;
+	unsigned int   data_setup_in_cycles;
+	unsigned int   data_hold_in_cycles;
+	int            ideal_sample_delay_in_ns;
+	unsigned int   sample_delay_factor;
+	int            tEYE;
+	unsigned int   min_prop_delay_in_ns = pdata->min_prop_delay_in_ns;
+	unsigned int   max_prop_delay_in_ns = pdata->max_prop_delay_in_ns;
+
+	/*
+	 * If there are multiple chips, we need to relax the timings to allow
+	 * for signal distortion due to higher capacitance.
+	 */
+
+	if (physical->chip_count > 2) {
+		target.data_setup_in_ns    += 10;
+		target.data_hold_in_ns     += 10;
+		target.address_setup_in_ns += 10;
+	} else if (physical->chip_count > 1) {
+		target.data_setup_in_ns    += 5;
+		target.data_hold_in_ns     += 5;
+		target.address_setup_in_ns += 5;
+	}
+
+	/* Check if improved timing information is available. */
+
+	improved_timing_is_available =
+		(target.tREA_in_ns  >= 0) &&
+		(target.tRLOH_in_ns >= 0) &&
+		(target.tRHOH_in_ns >= 0) ;
+
+	/* Inspect the clock. */
+
+	clock_frequency_in_hz = nfc->clock_frequency_in_hz;
+	clock_period_in_ns    = 1000000000 / clock_frequency_in_hz;
+
+	/*
+	 * The NFC quantizes setup and hold parameters in terms of clock cycles.
+	 * Here, we quantize the setup and hold timing parameters to the
+	 * next-highest clock period to make sure we apply at least the
+	 * specified times.
+	 *
+	 * For data setup and data hold, the hardware interprets a value of zero
+	 * as the largest possible delay. This is not what's intended by a zero
+	 * in the input parameter, so we impose a minimum of one cycle.
+	 */
+
+	data_setup_in_cycles    = ns_to_cycles(target.data_setup_in_ns,
+							clock_period_in_ns, 1);
+	data_hold_in_cycles     = ns_to_cycles(target.data_hold_in_ns,
+							clock_period_in_ns, 1);
+	address_setup_in_cycles = ns_to_cycles(target.address_setup_in_ns,
+							clock_period_in_ns, 0);
+
+	/*
+	 * The clock's period affects the sample delay in a number of ways:
+	 *
+	 * (1) The NFC HAL tells us the maximum clock period the sample delay
+	 *     DLL can tolerate. If the clock period is greater than half that
+	 *     maximum, we must configure the DLL to be driven by half periods.
+	 *
+	 * (2) We need to convert from an ideal sample delay, in ns, to a
+	 *     "sample delay factor," which the NFC uses. This factor depends on
+	 *     whether we're driving the DLL with full or half periods.
+	 *     Paraphrasing the reference manual:
+	 *
+	 *         AD = SDF x 0.125 x RP
+	 *
+	 * where:
+	 *
+	 *     AD   is the applied delay, in ns.
+	 *     SDF  is the sample delay factor, which is dimensionless.
+	 *     RP   is the reference period, in ns, which is a full clock period
+	 *          if the DLL is being driven by full periods, or half that if
+	 *          the DLL is being driven by half periods.
+	 *
+	 * Let's re-arrange this in a way that's more useful to us:
+	 *
+	 *                        8
+	 *         SDF  =  AD x ----
+	 *                       RP
+	 *
+	 * The reference period is either the clock period or half that, so this
+	 * is:
+	 *
+	 *                        8       AD x DDF
+	 *         SDF  =  AD x -----  =  --------
+	 *                      f x P        P
+	 *
+	 * where:
+	 *
+	 *       f  is 1 or 1/2, depending on how we're driving the DLL.
+	 *       P  is the clock period.
+	 *     DDF  is the DLL Delay Factor, a dimensionless value that
+	 *          incorporates all the constants in the conversion.
+	 *
+	 * DDF will be either 8 or 16, both of which are powers of two. We can
+	 * reduce the cost of this conversion by using bit shifts instead of
+	 * multiplication or division. Thus:
+	 *
+	 *                 AD << DDS
+	 *         SDF  =  ---------
+	 *                     P
+	 *
+	 *     or
+	 *
+	 *         AD  =  (SDF >> DDS) x P
+	 *
+	 * where:
+	 *
+	 *     DDS  is the DLL Delay Shift, the logarithm to base 2 of the DDF.
+	 */
+
+	if (clock_period_in_ns > (nfc->max_dll_clock_period_in_ns >> 1)) {
+		dll_use_half_periods = true;
+		dll_delay_shift      = 3 + 1;
+	} else {
+		dll_use_half_periods = false;
+		dll_delay_shift      = 3;
+	}
+
+	/*
+	 * Compute the maximum sample delay the NFC allows, under current
+	 * conditions. If the clock is running too slowly, no sample delay is
+	 * possible.
+	 */
+
+	if (clock_period_in_ns > nfc->max_dll_clock_period_in_ns)
+		max_sample_delay_in_ns = 0;
+	else {
+
+		/*
+		 * Compute the delay implied by the largest sample delay factor
+		 * the NFC allows.
+		 */
+
+		max_sample_delay_in_ns =
+			(nfc->max_sample_delay_factor * clock_period_in_ns) >>
+								dll_delay_shift;
+
+		/*
+		 * Check if the implied sample delay larger than the NFC
+		 * actually allows.
+		 */
+
+		if (max_sample_delay_in_ns > nfc->max_dll_delay_in_ns)
+			max_sample_delay_in_ns = nfc->max_dll_delay_in_ns;
+
+	}
+
+	/*
+	 * Check if improved timing information is available. If not, we have to
+	 * use a less-sophisticated algorithm.
+	 */
+
+	if (!improved_timing_is_available) {
+
+		/*
+		 * Fold the read setup time required by the NFC into the ideal
+		 * sample delay.
+		 */
+
+		ideal_sample_delay_in_ns = target.gpmi_sample_delay_in_ns +
+						nfc->internal_data_setup_in_ns;
+
+		/*
+		 * The ideal sample delay may be greater than the maximum
+		 * allowed by the NFC. If so, we can trade off sample delay time
+		 * for more data setup time.
+		 *
+		 * In each iteration of the following loop, we add a cycle to
+		 * the data setup time and subtract a corresponding amount from
+		 * the sample delay until we've satisified the constraints or
+		 * can't do any better.
+		 */
+
+		while ((ideal_sample_delay_in_ns > max_sample_delay_in_ns) &&
+			(data_setup_in_cycles < nfc->max_data_setup_cycles)) {
+
+			data_setup_in_cycles++;
+			ideal_sample_delay_in_ns -= clock_period_in_ns;
+
+			if (ideal_sample_delay_in_ns < 0)
+				ideal_sample_delay_in_ns = 0;
+
+		}
+
+		/*
+		 * Compute the sample delay factor that corresponds most closely
+		 * to the ideal sample delay. If the result is too large for the
+		 * NFC, use the maximum value.
+		 *
+		 * Notice that we use the ns_to_cycles function to compute the
+		 * sample delay factor. We do this because the form of the
+		 * computation is the same as that for calculating cycles.
+		 */
+
+		sample_delay_factor =
+			ns_to_cycles(
+				ideal_sample_delay_in_ns << dll_delay_shift,
+							clock_period_in_ns, 0);
+
+		if (sample_delay_factor > nfc->max_sample_delay_factor)
+			sample_delay_factor = nfc->max_sample_delay_factor;
+
+		/* Skip to the part where we return our results. */
+
+		goto return_results;
+
+	}
+
+	/*
+	 * If control arrives here, we have more detailed timing information,
+	 * so we can use a better algorithm.
+	 */
+
+	/*
+	 * Fold the read setup time required by the NFC into the maximum
+	 * propagation delay.
+	 */
+
+	max_prop_delay_in_ns += nfc->internal_data_setup_in_ns;
+
+	/*
+	 * Earlier, we computed the number of clock cycles required to satisfy
+	 * the data setup time. Now, we need to know the actual nanoseconds.
+	 */
+
+	data_setup_in_ns = clock_period_in_ns * data_setup_in_cycles;
+
+	/*
+	 * Compute tEYE, the width of the data eye when reading from the NAND
+	 * Flash. The eye width is fundamentally determined by the data setup
+	 * time, perturbed by propagation delays and some characteristics of the
+	 * NAND Flash device.
+	 *
+	 * start of the eye = max_prop_delay + tREA
+	 * end of the eye   = min_prop_delay + tRHOH + data_setup
+	 */
+
+	tEYE = (int)min_prop_delay_in_ns + (int)target.tRHOH_in_ns +
+							(int)data_setup_in_ns;
+
+	tEYE -= (int)max_prop_delay_in_ns + (int)target.tREA_in_ns;
+
+	/*
+	 * The eye must be open. If it's not, we can try to open it by
+	 * increasing its main forcer, the data setup time.
+	 *
+	 * In each iteration of the following loop, we increase the data setup
+	 * time by a single clock cycle. We do this until either the eye is
+	 * open or we run into NFC limits.
+	 */
+
+	while ((tEYE <= 0) &&
+			(data_setup_in_cycles < nfc->max_data_setup_cycles)) {
+		/* Give a cycle to data setup. */
+		data_setup_in_cycles++;
+		/* Synchronize the data setup time with the cycles. */
+		data_setup_in_ns += clock_period_in_ns;
+		/* Adjust tEYE accordingly. */
+		tEYE += clock_period_in_ns;
+	}
+
+	/*
+	 * When control arrives here, the eye is open. The ideal time to sample
+	 * the data is in the center of the eye:
+	 *
+	 *     end of the eye + start of the eye
+	 *     ---------------------------------  -  data_setup
+	 *                    2
+	 *
+	 * After some algebra, this simplifies to the code immediately below.
+	 */
+
+	ideal_sample_delay_in_ns =
+		((int)max_prop_delay_in_ns +
+			(int)target.tREA_in_ns +
+				(int)min_prop_delay_in_ns +
+					(int)target.tRHOH_in_ns -
+						(int)data_setup_in_ns) >> 1;
+
+	/*
+	 * The following figure illustrates some aspects of a NAND Flash read:
+	 *
+	 *
+	 *           __                   _____________________________________
+	 * RDN         \_________________/
+	 *
+	 *                                         <---- tEYE ----->
+	 *                                        /-----------------\
+	 * Read Data ----------------------------<                   >---------
+	 *                                        \-----------------/
+	 *             ^                 ^                 ^              ^
+	 *             |                 |                 |              |
+	 *             |<--Data Setup -->|<--Delay Time -->|              |
+	 *             |                 |                 |              |
+	 *             |                 |                                |
+	 *             |                 |<--   Quantized Delay Time   -->|
+	 *             |                 |                                |
+	 *
+	 *
+	 * We have some issues we must now address:
+	 *
+	 * (1) The *ideal* sample delay time must not be negative. If it is, we
+	 *     jam it to zero.
+	 *
+	 * (2) The *ideal* sample delay time must not be greater than that
+	 *     allowed by the NFC. If it is, we can increase the data setup
+	 *     time, which will reduce the delay between the end of the data
+	 *     setup and the center of the eye. It will also make the eye
+	 *     larger, which might help with the next issue...
+	 *
+	 * (3) The *quantized* sample delay time must not fall either before the
+	 *     eye opens or after it closes (the latter is the problem
+	 *     illustrated in the above figure).
+	 */
+
+	/* Jam a negative ideal sample delay to zero. */
+
+	if (ideal_sample_delay_in_ns < 0)
+		ideal_sample_delay_in_ns = 0;
+
+	/*
+	 * Extend the data setup as needed to reduce the ideal sample delay
+	 * below the maximum permitted by the NFC.
+	 */
+
+	while ((ideal_sample_delay_in_ns > max_sample_delay_in_ns) &&
+			(data_setup_in_cycles < nfc->max_data_setup_cycles)) {
+
+		/* Give a cycle to data setup. */
+		data_setup_in_cycles++;
+		/* Synchronize the data setup time with the cycles. */
+		data_setup_in_ns += clock_period_in_ns;
+		/* Adjust tEYE accordingly. */
+		tEYE += clock_period_in_ns;
+
+		/*
+		 * Decrease the ideal sample delay by one half cycle, to keep it
+		 * in the middle of the eye.
+		 */
+		ideal_sample_delay_in_ns -= (clock_period_in_ns >> 1);
+
+		/* Jam a negative ideal sample delay to zero. */
+		if (ideal_sample_delay_in_ns < 0)
+			ideal_sample_delay_in_ns = 0;
+
+	}
+
+	/*
+	 * Compute the sample delay factor that corresponds to the ideal sample
+	 * delay. If the result is too large, then use the maximum allowed
+	 * value.
+	 *
+	 * Notice that we use the ns_to_cycles function to compute the sample
+	 * delay factor. We do this because the form of the computation is the
+	 * same as that for calculating cycles.
+	 */
+
+	sample_delay_factor =
+		ns_to_cycles(ideal_sample_delay_in_ns << dll_delay_shift,
+							clock_period_in_ns, 0);
+
+	if (sample_delay_factor > nfc->max_sample_delay_factor)
+		sample_delay_factor = nfc->max_sample_delay_factor;
+
+	/*
+	 * These macros conveniently encapsulate a computation we'll use to
+	 * continuously evaluate whether or not the data sample delay is inside
+	 * the eye.
+	 */
+
+	#define IDEAL_DELAY  ((int) ideal_sample_delay_in_ns)
+
+	#define QUANTIZED_DELAY  \
+		((int) ((sample_delay_factor * clock_period_in_ns) >> \
+							dll_delay_shift))
+
+	#define DELAY_ERROR  (abs(QUANTIZED_DELAY - IDEAL_DELAY))
+
+	#define SAMPLE_IS_NOT_WITHIN_THE_EYE  (DELAY_ERROR > (tEYE >> 1))
+
+	/*
+	 * While the quantized sample time falls outside the eye, reduce the
+	 * sample delay or extend the data setup to move the sampling point back
+	 * toward the eye. Do not allow the number of data setup cycles to
+	 * exceed the maximum allowed by the NFC.
+	 */
+
+	while (SAMPLE_IS_NOT_WITHIN_THE_EYE &&
+			(data_setup_in_cycles < nfc->max_data_setup_cycles)) {
+
+		/*
+		 * If control arrives here, the quantized sample delay falls
+		 * outside the eye. Check if it's before the eye opens, or after
+		 * the eye closes.
+		 */
+
+		if (QUANTIZED_DELAY > IDEAL_DELAY) {
+
+			/*
+			 * If control arrives here, the quantized sample delay
+			 * falls after the eye closes. Decrease the quantized
+			 * delay time and then go back to re-evaluate.
+			 */
+
+			if (sample_delay_factor != 0)
+				sample_delay_factor--;
+
+			continue;
+
+		}
+
+		/*
+		 * If control arrives here, the quantized sample delay falls
+		 * before the eye opens. Shift the sample point by increasing
+		 * data setup time. This will also make the eye larger.
+		 */
+
+		/* Give a cycle to data setup. */
+		data_setup_in_cycles++;
+		/* Synchronize the data setup time with the cycles. */
+		data_setup_in_ns += clock_period_in_ns;
+		/* Adjust tEYE accordingly. */
+		tEYE += clock_period_in_ns;
+
+		/*
+		 * Decrease the ideal sample delay by one half cycle, to keep it
+		 * in the middle of the eye.
+		 */
+		ideal_sample_delay_in_ns -= (clock_period_in_ns >> 1);
+
+		/* ...and one less period for the delay time. */
+		ideal_sample_delay_in_ns -= clock_period_in_ns;
+
+		/* Jam a negative ideal sample delay to zero. */
+		if (ideal_sample_delay_in_ns < 0)
+			ideal_sample_delay_in_ns = 0;
+
+		/*
+		 * We have a new ideal sample delay, so re-compute the quantized
+		 * delay.
+		 */
+
+		sample_delay_factor =
+			ns_to_cycles(
+				ideal_sample_delay_in_ns << dll_delay_shift,
+							clock_period_in_ns, 0);
+
+		if (sample_delay_factor > nfc->max_sample_delay_factor)
+			sample_delay_factor = nfc->max_sample_delay_factor;
+
+	}
+
+	/* Control arrives here when we're ready to return our results. */
+
+return_results:
+
+	hw->data_setup_in_cycles    = data_setup_in_cycles;
+	hw->data_hold_in_cycles     = data_hold_in_cycles;
+	hw->address_setup_in_cycles = address_setup_in_cycles;
+	hw->use_half_periods        = dll_use_half_periods;
+	hw->sample_delay_factor     = sample_delay_factor;
+
+	/* Return success. */
+
+	return 0;
+
+}
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-v0.c b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-v0.c
new file mode 100644
index 000000000000..294bb9409581
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-v0.c
@@ -0,0 +1,924 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "gpmi-nfc.h"
+
+#include "gpmi-nfc-gpmi-regs-v0.h"
+#include "gpmi-nfc-bch-regs-v0.h"
+
+/**
+ * init() - Initializes the NFC hardware.
+ *
+ * @this:  Per-device data.
+ */
+static int init(struct gpmi_nfc_data *this)
+{
+	struct resources  *resources = &this->resources;
+	int               error;
+
+	/* Initialize DMA. */
+
+	error = gpmi_nfc_dma_init(this);
+
+	if (error)
+		return error;
+
+	/* Enable the clock. It will stay on until the end of set_geometry(). */
+
+	clk_enable(resources->clock);
+
+	/* Reset the GPMI block. */
+
+	mxs_reset_block(resources->gpmi_regs + HW_GPMI_CTRL0, true);
+
+	/* Choose NAND mode. */
+	__raw_writel(BM_GPMI_CTRL1_GPMI_MODE,
+				resources->gpmi_regs + HW_GPMI_CTRL1_CLR);
+
+	/* Set the IRQ polarity. */
+	__raw_writel(BM_GPMI_CTRL1_ATA_IRQRDY_POLARITY,
+				resources->gpmi_regs + HW_GPMI_CTRL1_SET);
+
+	/* Disable write protection. */
+	__raw_writel(BM_GPMI_CTRL1_DEV_RESET,
+				resources->gpmi_regs + HW_GPMI_CTRL1_SET);
+
+	/* Select BCH ECC. */
+	__raw_writel(BM_GPMI_CTRL1_BCH_MODE,
+				resources->gpmi_regs + HW_GPMI_CTRL1_SET);
+
+	/* Disable the clock. */
+
+	clk_disable(resources->clock);
+
+	/* If control arrives here, all is well. */
+
+	return 0;
+
+}
+
+/**
+ * set_geometry() - Configures the NFC geometry.
+ *
+ * @this:  Per-device data.
+ */
+static int set_geometry(struct gpmi_nfc_data *this)
+{
+	struct resources     *resources = &this->resources;
+	struct nfc_geometry  *nfc       = &this->nfc_geometry;
+	unsigned int         block_count;
+	unsigned int         block_size;
+	unsigned int         metadata_size;
+	unsigned int         ecc_strength;
+	unsigned int         page_size;
+
+	/* We make the abstract choices in a common function. */
+
+	if (gpmi_nfc_set_geometry(this))
+		return !0;
+
+	/* Translate the abstract choices into register fields. */
+
+	block_count   = nfc->ecc_chunk_count - 1;
+	block_size    = nfc->ecc_chunk_size_in_bytes;
+	metadata_size = nfc->metadata_size_in_bytes;
+	ecc_strength  = nfc->ecc_strength >> 1;
+	page_size     = nfc->page_size_in_bytes;
+
+	/* Enable the clock. */
+
+	clk_enable(resources->clock);
+
+	/*
+	 * Reset the BCH block. Notice that we pass in true for the just_enable
+	 * flag. This is because the soft reset for the version 0 BCH block
+	 * doesn't work. If you try to soft reset the BCH block, it becomes
+	 * unusable until the next hard reset.
+	 */
+
+	mxs_reset_block(resources->bch_regs, true);
+
+	/* Configure layout 0. */
+
+	__raw_writel(
+		BF_BCH_FLASH0LAYOUT0_NBLOCKS(block_count)     |
+		BF_BCH_FLASH0LAYOUT0_META_SIZE(metadata_size) |
+		BF_BCH_FLASH0LAYOUT0_ECC0(ecc_strength)       |
+		BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(block_size)   ,
+		resources->bch_regs + HW_BCH_FLASH0LAYOUT0);
+
+	__raw_writel(
+		BF_BCH_FLASH0LAYOUT1_PAGE_SIZE(page_size)   |
+		BF_BCH_FLASH0LAYOUT1_ECCN(ecc_strength)     |
+		BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(block_size) ,
+		resources->bch_regs + HW_BCH_FLASH0LAYOUT1);
+
+	/* Set *all* chip selects to use layout 0. */
+
+	__raw_writel(0, resources->bch_regs + HW_BCH_LAYOUTSELECT);
+
+	/* Enable interrupts. */
+
+	__raw_writel(BM_BCH_CTRL_COMPLETE_IRQ_EN,
+				resources->bch_regs + HW_BCH_CTRL_SET);
+
+	/* Disable the clock. */
+
+	clk_disable(resources->clock);
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * set_timing() - Configures the NFC timing.
+ *
+ * @this:    Per-device data.
+ * @timing:  The timing of interest.
+ */
+static int set_timing(struct gpmi_nfc_data *this,
+					const struct gpmi_nfc_timing *timing)
+{
+	struct nfc_hal  *nfc = this->nfc;
+
+	/* Accept the new timing. */
+
+	nfc->timing = *timing;
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * get_timing() - Retrieves the NFC hardware timing.
+ *
+ * @this:                    Per-device data.
+ * @clock_frequency_in_hz:   The clock frequency, in Hz, during the current
+ *                           I/O transaction. If no I/O transaction is in
+ *                           progress, this is the clock frequency during the
+ *                           most recent I/O transaction.
+ * @hardware_timing:         The hardware timing configuration in effect during
+ *                           the current I/O transaction. If no I/O transaction
+ *                           is in progress, this is the hardware timing
+ *                           configuration during the most recent I/O
+ *                           transaction.
+ */
+static void get_timing(struct gpmi_nfc_data *this,
+			unsigned long *clock_frequency_in_hz,
+			struct gpmi_nfc_hardware_timing *hardware_timing)
+{
+	struct resources                 *resources = &this->resources;
+	struct nfc_hal                   *nfc       =  this->nfc;
+	unsigned char                    *gpmi_regs = resources->gpmi_regs;
+	uint32_t                         register_image;
+
+	/* Return the clock frequency. */
+
+	*clock_frequency_in_hz = nfc->clock_frequency_in_hz;
+
+	/* We'll be reading the hardware, so let's enable the clock. */
+
+	clk_enable(resources->clock);
+
+	/* Retrieve the hardware timing. */
+
+	register_image = __raw_readl(gpmi_regs + HW_GPMI_TIMING0);
+
+	hardware_timing->data_setup_in_cycles =
+		(register_image & BM_GPMI_TIMING0_DATA_SETUP) >>
+						BP_GPMI_TIMING0_DATA_SETUP;
+
+	hardware_timing->data_hold_in_cycles =
+		(register_image & BM_GPMI_TIMING0_DATA_HOLD) >>
+						BP_GPMI_TIMING0_DATA_HOLD;
+
+	hardware_timing->address_setup_in_cycles =
+		(register_image & BM_GPMI_TIMING0_ADDRESS_SETUP) >>
+						BP_GPMI_TIMING0_ADDRESS_SETUP;
+
+	register_image = __raw_readl(gpmi_regs + HW_GPMI_CTRL1);
+
+	hardware_timing->use_half_periods =
+		(register_image & BM_GPMI_CTRL1_HALF_PERIOD) >>
+						BP_GPMI_CTRL1_HALF_PERIOD;
+
+	hardware_timing->sample_delay_factor =
+		(register_image & BM_GPMI_CTRL1_RDN_DELAY) >>
+						BP_GPMI_CTRL1_RDN_DELAY;
+
+	/* We're done reading the hardware, so disable the clock. */
+
+	clk_disable(resources->clock);
+
+}
+
+/**
+ * exit() - Shuts down the NFC hardware.
+ *
+ * @this:  Per-device data.
+ */
+static void exit(struct gpmi_nfc_data *this)
+{
+	gpmi_nfc_dma_exit(this);
+}
+
+/**
+ * begin() - Begin NFC I/O.
+ *
+ * @this:  Per-device data.
+ */
+static void begin(struct gpmi_nfc_data *this)
+{
+	struct resources                 *resources = &this->resources;
+	struct nfc_hal                   *nfc       =  this->nfc;
+	struct gpmi_nfc_hardware_timing  hw;
+	unsigned char                    *gpmi_regs = resources->gpmi_regs;
+	unsigned int                     clock_period_in_ns;
+	uint32_t                         register_image;
+	unsigned int                     dll_wait_time_in_us;
+
+	/* Enable the clock. */
+
+	clk_enable(resources->clock);
+
+	/* Get the timing information we need. */
+
+	nfc->clock_frequency_in_hz = clk_get_rate(resources->clock);
+	clock_period_in_ns = 1000000000 / nfc->clock_frequency_in_hz;
+
+	gpmi_nfc_compute_hardware_timing(this, &hw);
+
+	/* Set up all the simple timing parameters. */
+
+	register_image =
+		BF_GPMI_TIMING0_ADDRESS_SETUP(hw.address_setup_in_cycles) |
+		BF_GPMI_TIMING0_DATA_HOLD(hw.data_hold_in_cycles)         |
+		BF_GPMI_TIMING0_DATA_SETUP(hw.data_setup_in_cycles)       ;
+
+	__raw_writel(register_image, gpmi_regs + HW_GPMI_TIMING0);
+
+	/*
+	 * HEY - PAY ATTENTION!
+	 *
+	 * DLL_ENABLE must be set to zero when setting RDN_DELAY or HALF_PERIOD.
+	 */
+
+	__raw_writel(BM_GPMI_CTRL1_DLL_ENABLE, gpmi_regs + HW_GPMI_CTRL1_CLR);
+
+	/* Clear out the DLL control fields. */
+
+	__raw_writel(BM_GPMI_CTRL1_RDN_DELAY,   gpmi_regs + HW_GPMI_CTRL1_CLR);
+	__raw_writel(BM_GPMI_CTRL1_HALF_PERIOD, gpmi_regs + HW_GPMI_CTRL1_CLR);
+
+	/* If no sample delay is called for, return immediately. */
+
+	if (!hw.sample_delay_factor)
+		return;
+
+	/* Configure the HALF_PERIOD flag. */
+
+	if (hw.use_half_periods)
+		__raw_writel(BM_GPMI_CTRL1_HALF_PERIOD,
+						gpmi_regs + HW_GPMI_CTRL1_SET);
+
+	/* Set the delay factor. */
+
+	__raw_writel(BF_GPMI_CTRL1_RDN_DELAY(hw.sample_delay_factor),
+						gpmi_regs + HW_GPMI_CTRL1_SET);
+
+	/* Enable the DLL. */
+
+	__raw_writel(BM_GPMI_CTRL1_DLL_ENABLE, gpmi_regs + HW_GPMI_CTRL1_SET);
+
+	/*
+	 * After we enable the GPMI DLL, we have to wait 64 clock cycles before
+	 * we can use the GPMI.
+	 *
+	 * Calculate the amount of time we need to wait, in microseconds.
+	 */
+
+	dll_wait_time_in_us = (clock_period_in_ns * 64) / 1000;
+
+	if (!dll_wait_time_in_us)
+		dll_wait_time_in_us = 1;
+
+	/* Wait for the DLL to settle. */
+
+	udelay(dll_wait_time_in_us);
+
+}
+
+/**
+ * end() - End NFC I/O.
+ *
+ * @this:  Per-device data.
+ */
+static void end(struct gpmi_nfc_data *this)
+{
+	struct resources  *resources = &this->resources;
+
+	/* Disable the clock. */
+
+	clk_disable(resources->clock);
+
+}
+
+/**
+ * clear_bch() - Clears a BCH interrupt.
+ *
+ * @this:  Per-device data.
+ */
+static void clear_bch(struct gpmi_nfc_data *this)
+{
+	struct resources  *resources = &this->resources;
+
+	__raw_writel(BM_BCH_CTRL_COMPLETE_IRQ,
+				resources->bch_regs + HW_BCH_CTRL_CLR);
+
+}
+
+/**
+ * is_ready() - Returns the ready/busy status of the given chip.
+ *
+ * @this:  Per-device data.
+ * @chip:  The chip of interest.
+ */
+static int is_ready(struct gpmi_nfc_data *this, unsigned chip)
+{
+	struct resources  *resources = &this->resources;
+	uint32_t          mask;
+	uint32_t          register_image;
+
+	/* Extract and return the status. */
+
+	mask = BM_GPMI_DEBUG_READY0 << chip;
+
+	register_image = __raw_readl(resources->gpmi_regs + HW_GPMI_DEBUG);
+
+	return !!(register_image & mask);
+
+}
+
+/**
+ * send_command() - Sends a command and associated addresses.
+ *
+ * @this:    Per-device data.
+ * @chip:    The chip of interest.
+ * @buffer:  The physical address of a buffer that contains the command bytes.
+ * @length:  The number of bytes in the buffer.
+ */
+static int send_command(struct gpmi_nfc_data *this, unsigned chip,
+					dma_addr_t buffer, unsigned int length)
+{
+	struct device        *dev       =  this->dev;
+	struct resources     *resources = &this->resources;
+	struct nfc_hal       *nfc       =  this->nfc;
+	struct mxs_dma_desc  **d        = nfc->dma_descriptors;
+	int                  dma_channel;
+	int                  error;
+	uint32_t             command_mode;
+	uint32_t             address;
+
+	/* Compute the DMA channel. */
+
+	dma_channel = resources->dma_low_channel + chip;
+
+	/* A DMA descriptor that sends out the command. */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WRITE;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_CLE;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = DMA_READ;
+	(*d)->cmd.cmd.bits.chain             = 1;
+	(*d)->cmd.cmd.bits.irq               = 1;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 0;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 3;
+	(*d)->cmd.cmd.bits.bytes             = length;
+
+	(*d)->cmd.address = buffer;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode) |
+		BM_GPMI_CTRL0_WORD_LENGTH                |
+		BF_GPMI_CTRL0_CS(chip)                   |
+		BF_GPMI_CTRL0_ADDRESS(address)           |
+		BM_GPMI_CTRL0_ADDRESS_INCREMENT          |
+		BF_GPMI_CTRL0_XFER_COUNT(length)         ;
+
+	(*d)->cmd.pio_words[1] = 0;
+	(*d)->cmd.pio_words[2] = 0;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Go! */
+
+	error = gpmi_nfc_dma_go(this, dma_channel);
+
+	if (error)
+		dev_err(dev, "[%s] DMA error\n", __func__);
+
+	/* Return success. */
+
+	return error;
+
+}
+
+/**
+ * send_data() - Sends data to the given chip.
+ *
+ * @this:    Per-device data.
+ * @chip:    The chip of interest.
+ * @buffer:  The physical address of a buffer that contains the data.
+ * @length:  The number of bytes in the buffer.
+ */
+static int send_data(struct gpmi_nfc_data *this, unsigned chip,
+					dma_addr_t buffer, unsigned int length)
+{
+	struct device        *dev       =  this->dev;
+	struct resources     *resources = &this->resources;
+	struct nfc_hal       *nfc       =  this->nfc;
+	struct mxs_dma_desc  **d        = nfc->dma_descriptors;
+	int                  dma_channel;
+	int                  error = 0;
+	uint32_t             command_mode;
+	uint32_t             address;
+
+	/* Compute the DMA channel. */
+
+	dma_channel = resources->dma_low_channel + chip;
+
+	/* A DMA descriptor that writes a buffer out. */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WRITE;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = DMA_READ;
+	(*d)->cmd.cmd.bits.chain             = 0;
+	(*d)->cmd.cmd.bits.irq               = 1;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 0;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 4;
+	(*d)->cmd.cmd.bits.bytes             = length;
+
+	(*d)->cmd.address = buffer;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode) |
+		BM_GPMI_CTRL0_WORD_LENGTH                |
+		BF_GPMI_CTRL0_CS(chip)                   |
+		BF_GPMI_CTRL0_ADDRESS(address)           |
+		BF_GPMI_CTRL0_XFER_COUNT(length)         ;
+	(*d)->cmd.pio_words[1] = 0;
+	(*d)->cmd.pio_words[2] = 0;
+	(*d)->cmd.pio_words[3] = 0;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Go! */
+
+	error = gpmi_nfc_dma_go(this, dma_channel);
+
+	if (error)
+		dev_err(dev, "[%s] DMA error\n", __func__);
+
+	/* Return success. */
+
+	return error;
+
+}
+
+/**
+ * read_data() - Receives data from the given chip.
+ *
+ * @this:    Per-device data.
+ * @chip:    The chip of interest.
+ * @buffer:  The physical address of a buffer that will receive the data.
+ * @length:  The number of bytes to read.
+ */
+static int read_data(struct gpmi_nfc_data *this, unsigned chip,
+					dma_addr_t buffer, unsigned int length)
+{
+	struct device        *dev       =  this->dev;
+	struct resources     *resources = &this->resources;
+	struct nfc_hal       *nfc       =  this->nfc;
+	struct mxs_dma_desc  **d        = nfc->dma_descriptors;
+	int                  dma_channel;
+	int                  error = 0;
+	uint32_t             command_mode;
+	uint32_t             address;
+
+	/* Compute the DMA channel. */
+
+	dma_channel = resources->dma_low_channel + chip;
+
+	/* A DMA descriptor that reads the data. */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__READ;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = DMA_WRITE;
+	(*d)->cmd.cmd.bits.chain             = 1;
+	(*d)->cmd.cmd.bits.irq               = 0;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 0;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 1;
+	(*d)->cmd.cmd.bits.bytes             = length;
+
+	(*d)->cmd.address = buffer;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode) |
+		BM_GPMI_CTRL0_WORD_LENGTH                |
+		BF_GPMI_CTRL0_CS(chip)                   |
+		BF_GPMI_CTRL0_ADDRESS(address)           |
+		BF_GPMI_CTRL0_XFER_COUNT(length)         ;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/*
+	 * A DMA descriptor that waits for the command to end and the chip to
+	 * become ready.
+	 *
+	 * I think we actually should *not* be waiting for the chip to become
+	 * ready because, after all, we don't care. I think the original code
+	 * did that and no one has re-thought it yet.
+	 */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = NO_DMA_XFER;
+	(*d)->cmd.cmd.bits.chain             = 0;
+	(*d)->cmd.cmd.bits.irq               = 1;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 1;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 4;
+	(*d)->cmd.cmd.bits.bytes             = 0;
+
+	(*d)->cmd.address = 0;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode) |
+		BM_GPMI_CTRL0_WORD_LENGTH                |
+		BF_GPMI_CTRL0_CS(chip)                   |
+		BF_GPMI_CTRL0_ADDRESS(address)           |
+		BF_GPMI_CTRL0_XFER_COUNT(0)              ;
+	(*d)->cmd.pio_words[1] = 0;
+	(*d)->cmd.pio_words[2] = 0;
+	(*d)->cmd.pio_words[3] = 0;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Go! */
+
+	error = gpmi_nfc_dma_go(this, dma_channel);
+
+	if (error)
+		dev_err(dev, "[%s] DMA error\n", __func__);
+
+	/* Return success. */
+
+	return error;
+
+}
+
+/**
+ * send_page() - Sends a page, using ECC.
+ *
+ * @this:       Per-device data.
+ * @chip:       The chip of interest.
+ * @payload:    The physical address of the payload buffer.
+ * @auxiliary:  The physical address of the auxiliary buffer.
+ */
+static int send_page(struct gpmi_nfc_data *this, unsigned chip,
+				dma_addr_t payload, dma_addr_t auxiliary)
+{
+	struct device        *dev       =  this->dev;
+	struct resources     *resources = &this->resources;
+	struct nfc_hal       *nfc       =  this->nfc;
+	struct nfc_geometry  *nfc_geo   = &this->nfc_geometry;
+	struct mxs_dma_desc  **d        = nfc->dma_descriptors;
+	int                  dma_channel;
+	int                  error = 0;
+	uint32_t             command_mode;
+	uint32_t             address;
+	uint32_t             ecc_command;
+	uint32_t             buffer_mask;
+
+	/* Compute the DMA channel. */
+
+	dma_channel = resources->dma_low_channel + chip;
+
+	/* A DMA descriptor that does an ECC page read. */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WRITE;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+	ecc_command  = BV_GPMI_ECCCTRL_ECC_CMD__BCH_ENCODE;
+	buffer_mask  = BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_PAGE |
+				BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_AUXONLY;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = NO_DMA_XFER;
+	(*d)->cmd.cmd.bits.chain             = 0;
+	(*d)->cmd.cmd.bits.irq               = 1;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 0;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 6;
+	(*d)->cmd.cmd.bits.bytes             = 0;
+
+	(*d)->cmd.address = 0;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode) |
+		BM_GPMI_CTRL0_WORD_LENGTH                |
+		BF_GPMI_CTRL0_CS(chip)                   |
+		BF_GPMI_CTRL0_ADDRESS(address)           |
+		BF_GPMI_CTRL0_XFER_COUNT(0)              ;
+
+	(*d)->cmd.pio_words[1] = 0;
+
+	(*d)->cmd.pio_words[2] =
+		BM_GPMI_ECCCTRL_ENABLE_ECC               |
+		BF_GPMI_ECCCTRL_ECC_CMD(ecc_command)     |
+		BF_GPMI_ECCCTRL_BUFFER_MASK(buffer_mask) ;
+
+	(*d)->cmd.pio_words[3] = nfc_geo->page_size_in_bytes;
+	(*d)->cmd.pio_words[4] = payload;
+	(*d)->cmd.pio_words[5] = auxiliary;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Prepare to receive an interrupt from the BCH block. */
+
+	init_completion(&nfc->bch_done);
+
+	/* Go! */
+
+	error = gpmi_nfc_dma_go(this, dma_channel);
+
+	if (error)
+		dev_err(dev, "[%s] DMA error\n", __func__);
+
+	/* Wait for the interrupt from the BCH block. */
+
+	wait_for_completion(&nfc->bch_done);
+
+	/* Return success. */
+
+	return error;
+
+}
+
+/**
+ * read_page() - Reads a page, using ECC.
+ *
+ * @this:       Per-device data.
+ * @chip:       The chip of interest.
+ * @payload:    The physical address of the payload buffer.
+ * @auxiliary:  The physical address of the auxiliary buffer.
+ */
+static int read_page(struct gpmi_nfc_data *this, unsigned chip,
+				dma_addr_t payload, dma_addr_t auxiliary)
+{
+	struct device        *dev       =  this->dev;
+	struct resources     *resources = &this->resources;
+	struct nfc_hal       *nfc       =  this->nfc;
+	struct nfc_geometry  *nfc_geo   = &this->nfc_geometry;
+	struct mxs_dma_desc  **d        = nfc->dma_descriptors;
+	int                  dma_channel;
+	int                  error = 0;
+	uint32_t             command_mode;
+	uint32_t             address;
+	uint32_t             ecc_command;
+	uint32_t             buffer_mask;
+
+	/* Compute the DMA channel. */
+
+	dma_channel = resources->dma_low_channel + chip;
+
+	/* Wait for the chip to report ready. */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = NO_DMA_XFER;
+	(*d)->cmd.cmd.bits.chain             = 1;
+	(*d)->cmd.cmd.bits.irq               = 0;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 1;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 1;
+	(*d)->cmd.cmd.bits.bytes             = 0;
+
+	(*d)->cmd.address = 0;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode) |
+		BM_GPMI_CTRL0_WORD_LENGTH                |
+		BF_GPMI_CTRL0_CS(chip)                   |
+		BF_GPMI_CTRL0_ADDRESS(address)           |
+		BF_GPMI_CTRL0_XFER_COUNT(0)              ;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Enable the BCH block and read. */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__READ;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+	ecc_command  = BV_GPMI_ECCCTRL_ECC_CMD__BCH_DECODE;
+	buffer_mask  = BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_PAGE |
+				BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_AUXONLY;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = NO_DMA_XFER;
+	(*d)->cmd.cmd.bits.chain             = 1;
+	(*d)->cmd.cmd.bits.irq               = 0;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 0;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 6;
+	(*d)->cmd.cmd.bits.bytes             = 0;
+
+	(*d)->cmd.address = 0;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode)              |
+		BM_GPMI_CTRL0_WORD_LENGTH                             |
+		BF_GPMI_CTRL0_CS(chip)                                |
+		BF_GPMI_CTRL0_ADDRESS(address)                        |
+		BF_GPMI_CTRL0_XFER_COUNT(nfc_geo->page_size_in_bytes) ;
+
+	(*d)->cmd.pio_words[1] = 0;
+	(*d)->cmd.pio_words[2] =
+		BM_GPMI_ECCCTRL_ENABLE_ECC 	         |
+		BF_GPMI_ECCCTRL_ECC_CMD(ecc_command)     |
+		BF_GPMI_ECCCTRL_BUFFER_MASK(buffer_mask) ;
+	(*d)->cmd.pio_words[3] = nfc_geo->page_size_in_bytes;
+	(*d)->cmd.pio_words[4] = payload;
+	(*d)->cmd.pio_words[5] = auxiliary;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Disable the BCH block */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = NO_DMA_XFER;
+	(*d)->cmd.cmd.bits.chain             = 1;
+	(*d)->cmd.cmd.bits.irq               = 0;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 1;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 3;
+	(*d)->cmd.cmd.bits.bytes             = 0;
+
+	(*d)->cmd.address = 0;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode)              |
+		BM_GPMI_CTRL0_WORD_LENGTH                             |
+		BF_GPMI_CTRL0_CS(chip)                                |
+		BF_GPMI_CTRL0_ADDRESS(address)                        |
+		BF_GPMI_CTRL0_XFER_COUNT(nfc_geo->page_size_in_bytes) ;
+
+	(*d)->cmd.pio_words[1] = 0;
+	(*d)->cmd.pio_words[2] = 0;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Deassert the NAND lock and interrupt. */
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = NO_DMA_XFER;
+	(*d)->cmd.cmd.bits.chain             = 0;
+	(*d)->cmd.cmd.bits.irq               = 1;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 0;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 0;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 0;
+	(*d)->cmd.cmd.bits.bytes             = 0;
+
+	(*d)->cmd.address = 0;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Prepare to receive an interrupt from the BCH block. */
+
+	init_completion(&nfc->bch_done);
+
+	/* Go! */
+
+	error = gpmi_nfc_dma_go(this, dma_channel);
+
+	if (error)
+		dev_err(dev, "[%s] DMA error\n", __func__);
+
+	/* Wait for the interrupt from the BCH block. */
+
+	wait_for_completion(&nfc->bch_done);
+
+	/* Return success. */
+
+	return error;
+
+}
+
+/* This structure represents the NFC HAL for this version of the hardware. */
+
+struct nfc_hal  gpmi_nfc_hal_v0 = {
+	.version                     = 0,
+	.description                 = "4-chip GPMI and BCH",
+	.max_chip_count              = 4,
+	.max_data_setup_cycles       = (BM_GPMI_TIMING0_DATA_SETUP >>
+						BP_GPMI_TIMING0_DATA_SETUP),
+	.internal_data_setup_in_ns   = 0,
+	.max_sample_delay_factor     = (BM_GPMI_CTRL1_RDN_DELAY >>
+						BP_GPMI_CTRL1_RDN_DELAY),
+	.max_dll_clock_period_in_ns  = 32,
+	.max_dll_delay_in_ns         = 16,
+	.init                        = init,
+	.set_geometry                = set_geometry,
+	.set_timing                  = set_timing,
+	.get_timing                  = get_timing,
+	.exit                        = exit,
+	.begin                       = begin,
+	.end                         = end,
+	.clear_bch                   = clear_bch,
+	.is_ready                    = is_ready,
+	.send_command                = send_command,
+	.send_data                   = send_data,
+	.read_data                   = read_data,
+	.send_page                   = send_page,
+	.read_page                   = read_page,
+};
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-v1.c b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-v1.c
new file mode 100644
index 000000000000..962efe686853
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-v1.c
@@ -0,0 +1,866 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "gpmi-nfc.h"
+
+#include "gpmi-nfc-gpmi-regs-v1.h"
+#include "gpmi-nfc-bch-regs-v1.h"
+
+/**
+ * init() - Initializes the NFC hardware.
+ *
+ * @this:  Per-device data.
+ */
+static int init(struct gpmi_nfc_data *this)
+{
+	struct resources  *resources = &this->resources;
+	int               error;
+
+	/* Initialize DMA. */
+
+	error = gpmi_nfc_dma_init(this);
+
+	if (error)
+		return error;
+
+	/* Enable the clock. */
+
+	clk_enable(resources->clock);
+
+	/* Reset the GPMI block. */
+
+	mxs_reset_block(resources->gpmi_regs + HW_GPMI_CTRL0, true);
+
+	/* Choose NAND mode. */
+	__raw_writel(BM_GPMI_CTRL1_GPMI_MODE,
+				resources->gpmi_regs + HW_GPMI_CTRL1_CLR);
+
+	/* Set the IRQ polarity. */
+	__raw_writel(BM_GPMI_CTRL1_ATA_IRQRDY_POLARITY,
+				resources->gpmi_regs + HW_GPMI_CTRL1_SET);
+
+	/* Disable write protection. */
+	__raw_writel(BM_GPMI_CTRL1_DEV_RESET,
+				resources->gpmi_regs + HW_GPMI_CTRL1_SET);
+
+	/* Select BCH ECC. */
+	__raw_writel(BM_GPMI_CTRL1_BCH_MODE,
+				resources->gpmi_regs + HW_GPMI_CTRL1_SET);
+
+	/* Disable the clock. */
+
+	clk_disable(resources->clock);
+
+	/* If control arrives here, all is well. */
+
+	return 0;
+
+}
+
+/**
+ * set_geometry() - Configures the NFC geometry.
+ *
+ * @this:  Per-device data.
+ */
+static int set_geometry(struct gpmi_nfc_data *this)
+{
+	struct resources     *resources = &this->resources;
+	struct nfc_geometry  *nfc       = &this->nfc_geometry;
+	unsigned int         block_count;
+	unsigned int         block_size;
+	unsigned int         metadata_size;
+	unsigned int         ecc_strength;
+	unsigned int         page_size;
+
+	/* We make the abstract choices in a common function. */
+
+	if (gpmi_nfc_set_geometry(this))
+		return !0;
+
+	/* Translate the abstract choices into register fields. */
+
+	block_count   = nfc->ecc_chunk_count - 1;
+	block_size    = nfc->ecc_chunk_size_in_bytes;
+	metadata_size = nfc->metadata_size_in_bytes;
+	ecc_strength  = nfc->ecc_strength >> 1;
+	page_size     = nfc->page_size_in_bytes;
+
+	/* Enable the clock. */
+
+	clk_enable(resources->clock);
+
+	/*
+	 * Reset the BCH block. Notice that we pass in true for the just_enable
+	 * flag. This is because the soft reset for the version 0 BCH block
+	 * doesn't work and the version 1 BCH block is similar enough that we
+	 * suspect the same (though this has not been officially tested). If you
+	 * try to soft reset a version 0 BCH block, it becomes unusable until
+	 * the next hard reset.
+	 */
+
+	mxs_reset_block(resources->bch_regs, true);
+
+	/* Configure layout 0. */
+
+	__raw_writel(
+		BF_BCH_FLASH0LAYOUT0_NBLOCKS(block_count)     |
+		BF_BCH_FLASH0LAYOUT0_META_SIZE(metadata_size) |
+		BF_BCH_FLASH0LAYOUT0_ECC0(ecc_strength)       |
+		BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(block_size)   ,
+		resources->bch_regs + HW_BCH_FLASH0LAYOUT0);
+
+	__raw_writel(
+		BF_BCH_FLASH0LAYOUT1_PAGE_SIZE(page_size)   |
+		BF_BCH_FLASH0LAYOUT1_ECCN(ecc_strength)     |
+		BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(block_size) ,
+		resources->bch_regs + HW_BCH_FLASH0LAYOUT1);
+
+	/* Set *all* chip selects to use layout 0. */
+
+	__raw_writel(0, resources->bch_regs + HW_BCH_LAYOUTSELECT);
+
+	/* Enable interrupts. */
+
+	__raw_writel(BM_BCH_CTRL_COMPLETE_IRQ_EN,
+				resources->bch_regs + HW_BCH_CTRL_SET);
+
+	/* Disable the clock. */
+
+	clk_disable(resources->clock);
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * set_timing() - Configures the NFC timing.
+ *
+ * @this:    Per-device data.
+ * @timing:  The timing of interest.
+ */
+static int set_timing(struct gpmi_nfc_data *this,
+					const struct gpmi_nfc_timing *timing)
+{
+	struct nfc_hal  *nfc = this->nfc;
+
+	/* Accept the new timing. */
+
+	nfc->timing = *timing;
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * get_timing() - Retrieves the NFC hardware timing.
+ *
+ * @this:                    Per-device data.
+ * @clock_frequency_in_hz:   The clock frequency, in Hz, during the current
+ *                           I/O transaction. If no I/O transaction is in
+ *                           progress, this is the clock frequency during the
+ *                           most recent I/O transaction.
+ * @hardware_timing:         The hardware timing configuration in effect during
+ *                           the current I/O transaction. If no I/O transaction
+ *                           is in progress, this is the hardware timing
+ *                           configuration during the most recent I/O
+ *                           transaction.
+ */
+static void get_timing(struct gpmi_nfc_data *this,
+			unsigned long *clock_frequency_in_hz,
+			struct gpmi_nfc_hardware_timing *hardware_timing)
+{
+	struct resources                 *resources = &this->resources;
+	struct nfc_hal                   *nfc       =  this->nfc;
+	unsigned char                    *gpmi_regs = resources->gpmi_regs;
+	uint32_t                         register_image;
+
+	/* Return the clock frequency. */
+
+	*clock_frequency_in_hz = nfc->clock_frequency_in_hz;
+
+	/* We'll be reading the hardware, so let's enable the clock. */
+
+	clk_enable(resources->clock);
+
+	/* Retrieve the hardware timing. */
+
+	register_image = __raw_readl(gpmi_regs + HW_GPMI_TIMING0);
+
+	hardware_timing->data_setup_in_cycles =
+		(register_image & BM_GPMI_TIMING0_DATA_SETUP) >>
+						BP_GPMI_TIMING0_DATA_SETUP;
+
+	hardware_timing->data_hold_in_cycles =
+		(register_image & BM_GPMI_TIMING0_DATA_HOLD) >>
+						BP_GPMI_TIMING0_DATA_HOLD;
+
+	hardware_timing->address_setup_in_cycles =
+		(register_image & BM_GPMI_TIMING0_ADDRESS_SETUP) >>
+						BP_GPMI_TIMING0_ADDRESS_SETUP;
+
+	register_image = __raw_readl(gpmi_regs + HW_GPMI_CTRL1);
+
+	hardware_timing->use_half_periods =
+		(register_image & BM_GPMI_CTRL1_HALF_PERIOD) >>
+						BP_GPMI_CTRL1_HALF_PERIOD;
+
+	hardware_timing->sample_delay_factor =
+		(register_image & BM_GPMI_CTRL1_RDN_DELAY) >>
+						BP_GPMI_CTRL1_RDN_DELAY;
+
+	/* We're done reading the hardware, so disable the clock. */
+
+	clk_disable(resources->clock);
+
+}
+
+/**
+ * exit() - Shuts down the NFC hardware.
+ *
+ * @this:  Per-device data.
+ */
+static void exit(struct gpmi_nfc_data *this)
+{
+	gpmi_nfc_dma_exit(this);
+}
+
+/**
+ * begin() - Begin NFC I/O.
+ *
+ * @this:  Per-device data.
+ */
+static void begin(struct gpmi_nfc_data *this)
+{
+	struct resources                 *resources = &this->resources;
+	struct nfc_hal                   *nfc       =  this->nfc;
+	struct gpmi_nfc_hardware_timing  hw;
+
+	/* Enable the clock. */
+
+	clk_enable(resources->clock);
+
+	/* Get the timing information we need. */
+
+	nfc->clock_frequency_in_hz = clk_get_rate(resources->clock);
+	gpmi_nfc_compute_hardware_timing(this, &hw);
+
+	/* Apply the hardware timing. */
+
+	/* Coming soon - the clock handling code isn't ready yet. */
+
+}
+
+/**
+ * end() - End NFC I/O.
+ *
+ * @this:  Per-device data.
+ */
+static void end(struct gpmi_nfc_data *this)
+{
+	struct resources  *resources = &this->resources;
+
+	/* Disable the clock. */
+
+	clk_disable(resources->clock);
+
+}
+
+/**
+ * clear_bch() - Clears a BCH interrupt.
+ *
+ * @this:  Per-device data.
+ */
+static void clear_bch(struct gpmi_nfc_data *this)
+{
+	struct resources  *resources = &this->resources;
+
+	__raw_writel(BM_BCH_CTRL_COMPLETE_IRQ,
+				resources->bch_regs + HW_BCH_CTRL_CLR);
+
+}
+
+/**
+ * is_ready() - Returns the ready/busy status of the given chip.
+ *
+ * @this:  Per-device data.
+ * @chip:  The chip of interest.
+ */
+static int is_ready(struct gpmi_nfc_data *this, unsigned chip)
+{
+	struct resources  *resources = &this->resources;
+	uint32_t          mask;
+	uint32_t          register_image;
+
+	/* Extract and return the status. */
+
+	mask = BF_GPMI_STAT_READY_BUSY(1 << chip);
+
+	register_image = __raw_readl(resources->gpmi_regs + HW_GPMI_STAT);
+
+	return !!(register_image & mask);
+
+}
+
+/**
+ * send_command() - Sends a command and associated addresses.
+ *
+ * @this:    Per-device data.
+ * @chip:    The chip of interest.
+ * @buffer:  The physical address of a buffer that contains the command bytes.
+ * @length:  The number of bytes in the buffer.
+ */
+static int send_command(struct gpmi_nfc_data *this, unsigned chip,
+					dma_addr_t buffer, unsigned int length)
+{
+	struct device        *dev       =  this->dev;
+	struct resources     *resources = &this->resources;
+	struct nfc_hal       *nfc       =  this->nfc;
+	struct mxs_dma_desc  **d        = nfc->dma_descriptors;
+	int                  dma_channel;
+	int                  error;
+	uint32_t             command_mode;
+	uint32_t             address;
+
+	/* Compute the DMA channel. */
+
+	dma_channel = resources->dma_low_channel + chip;
+
+	/* A DMA descriptor that sends out the command. */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WRITE;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_CLE;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = DMA_READ;
+	(*d)->cmd.cmd.bits.chain             = 1;
+	(*d)->cmd.cmd.bits.irq               = 1;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 0;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 3;
+	(*d)->cmd.cmd.bits.bytes             = length;
+
+	(*d)->cmd.address = buffer;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode) |
+		BM_GPMI_CTRL0_WORD_LENGTH                |
+		BF_GPMI_CTRL0_CS(chip)                   |
+		BF_GPMI_CTRL0_ADDRESS(address)           |
+		BM_GPMI_CTRL0_ADDRESS_INCREMENT          |
+		BF_GPMI_CTRL0_XFER_COUNT(length)         ;
+
+	(*d)->cmd.pio_words[1] = 0;
+	(*d)->cmd.pio_words[2] = 0;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Go! */
+
+	error = gpmi_nfc_dma_go(this, dma_channel);
+
+	if (error)
+		dev_err(dev, "[%s] DMA error\n", __func__);
+
+	/* Return success. */
+
+	return error;
+
+}
+
+/**
+ * send_data() - Sends data to the given chip.
+ *
+ * @this:    Per-device data.
+ * @chip:    The chip of interest.
+ * @buffer:  The physical address of a buffer that contains the data.
+ * @length:  The number of bytes in the buffer.
+ */
+static int send_data(struct gpmi_nfc_data *this, unsigned chip,
+					dma_addr_t buffer, unsigned int length)
+{
+	struct device        *dev       =  this->dev;
+	struct resources     *resources = &this->resources;
+	struct nfc_hal       *nfc       =  this->nfc;
+	struct mxs_dma_desc  **d        = nfc->dma_descriptors;
+	int                  dma_channel;
+	int                  error = 0;
+	uint32_t             command_mode;
+	uint32_t             address;
+
+	/* Compute the DMA channel. */
+
+	dma_channel = resources->dma_low_channel + chip;
+
+	/* A DMA descriptor that writes a buffer out. */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WRITE;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = DMA_READ;
+	(*d)->cmd.cmd.bits.chain             = 0;
+	(*d)->cmd.cmd.bits.irq               = 1;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 0;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 4;
+	(*d)->cmd.cmd.bits.bytes             = length;
+
+	(*d)->cmd.address = buffer;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode) |
+		BM_GPMI_CTRL0_WORD_LENGTH                |
+		BF_GPMI_CTRL0_CS(chip)                   |
+		BF_GPMI_CTRL0_ADDRESS(address)           |
+		BF_GPMI_CTRL0_XFER_COUNT(length)         ;
+	(*d)->cmd.pio_words[1] = 0;
+	(*d)->cmd.pio_words[2] = 0;
+	(*d)->cmd.pio_words[3] = 0;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Go! */
+
+	error = gpmi_nfc_dma_go(this, dma_channel);
+
+	if (error)
+		dev_err(dev, "[%s] DMA error\n", __func__);
+
+	/* Return success. */
+
+	return error;
+
+}
+
+/**
+ * read_data() - Receives data from the given chip.
+ *
+ * @this:    Per-device data.
+ * @chip:    The chip of interest.
+ * @buffer:  The physical address of a buffer that will receive the data.
+ * @length:  The number of bytes to read.
+ */
+static int read_data(struct gpmi_nfc_data *this, unsigned chip,
+					dma_addr_t buffer, unsigned int length)
+{
+	struct device        *dev       =  this->dev;
+	struct resources     *resources = &this->resources;
+	struct nfc_hal       *nfc       =  this->nfc;
+	struct mxs_dma_desc  **d        = nfc->dma_descriptors;
+	int                  dma_channel;
+	int                  error = 0;
+	uint32_t             command_mode;
+	uint32_t             address;
+
+	/* Compute the DMA channel. */
+
+	dma_channel = resources->dma_low_channel + chip;
+
+	/* A DMA descriptor that reads the data. */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__READ;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = DMA_WRITE;
+	(*d)->cmd.cmd.bits.chain             = 1;
+	(*d)->cmd.cmd.bits.irq               = 0;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 0;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 1;
+	(*d)->cmd.cmd.bits.bytes             = length;
+
+	(*d)->cmd.address = buffer;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode) |
+		BM_GPMI_CTRL0_WORD_LENGTH                |
+		BF_GPMI_CTRL0_CS(chip)                   |
+		BF_GPMI_CTRL0_ADDRESS(address)           |
+		BF_GPMI_CTRL0_XFER_COUNT(length)         ;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/*
+	 * A DMA descriptor that waits for the command to end and the chip to
+	 * become ready.
+	 *
+	 * I think we actually should *not* be waiting for the chip to become
+	 * ready because, after all, we don't care. I think the original code
+	 * did that and no one has re-thought it yet.
+	 */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = NO_DMA_XFER;
+	(*d)->cmd.cmd.bits.chain             = 0;
+	(*d)->cmd.cmd.bits.irq               = 1;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 1;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 4;
+	(*d)->cmd.cmd.bits.bytes             = 0;
+
+	(*d)->cmd.address = 0;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode) |
+		BM_GPMI_CTRL0_WORD_LENGTH                |
+		BF_GPMI_CTRL0_CS(chip)                   |
+		BF_GPMI_CTRL0_ADDRESS(address)           |
+		BF_GPMI_CTRL0_XFER_COUNT(0)              ;
+	(*d)->cmd.pio_words[1] = 0;
+	(*d)->cmd.pio_words[2] = 0;
+	(*d)->cmd.pio_words[3] = 0;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Go! */
+
+	error = gpmi_nfc_dma_go(this, dma_channel);
+
+	if (error)
+		dev_err(dev, "[%s] DMA error\n", __func__);
+
+	/* Return success. */
+
+	return error;
+
+}
+
+/**
+ * send_page() - Sends a page, using ECC.
+ *
+ * @this:       Per-device data.
+ * @chip:       The chip of interest.
+ * @payload:    The physical address of the payload buffer.
+ * @auxiliary:  The physical address of the auxiliary buffer.
+ */
+static int send_page(struct gpmi_nfc_data *this, unsigned chip,
+				dma_addr_t payload, dma_addr_t auxiliary)
+{
+	struct device        *dev       =  this->dev;
+	struct resources     *resources = &this->resources;
+	struct nfc_hal       *nfc       =  this->nfc;
+	struct nfc_geometry  *nfc_geo   = &this->nfc_geometry;
+	struct mxs_dma_desc  **d        = nfc->dma_descriptors;
+	int                  dma_channel;
+	int                  error = 0;
+	uint32_t             command_mode;
+	uint32_t             address;
+	uint32_t             ecc_command;
+	uint32_t             buffer_mask;
+
+	/* Compute the DMA channel. */
+
+	dma_channel = resources->dma_low_channel + chip;
+
+	/* A DMA descriptor that does an ECC page read. */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WRITE;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+	ecc_command  = BV_GPMI_ECCCTRL_ECC_CMD__ENCODE;
+	buffer_mask  = BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_PAGE |
+				BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_AUXONLY;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = NO_DMA_XFER;
+	(*d)->cmd.cmd.bits.chain             = 0;
+	(*d)->cmd.cmd.bits.irq               = 1;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 0;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 6;
+	(*d)->cmd.cmd.bits.bytes             = 0;
+
+	(*d)->cmd.address = 0;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode) |
+		BM_GPMI_CTRL0_WORD_LENGTH                |
+		BF_GPMI_CTRL0_CS(chip)                   |
+		BF_GPMI_CTRL0_ADDRESS(address)           |
+		BF_GPMI_CTRL0_XFER_COUNT(0)              ;
+
+	(*d)->cmd.pio_words[1] = 0;
+
+	(*d)->cmd.pio_words[2] =
+		BM_GPMI_ECCCTRL_ENABLE_ECC               |
+		BF_GPMI_ECCCTRL_ECC_CMD(ecc_command)     |
+		BF_GPMI_ECCCTRL_BUFFER_MASK(buffer_mask) ;
+
+	(*d)->cmd.pio_words[3] = nfc_geo->page_size_in_bytes;
+	(*d)->cmd.pio_words[4] = payload;
+	(*d)->cmd.pio_words[5] = auxiliary;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Prepare to receive an interrupt from the BCH block. */
+
+	init_completion(&nfc->bch_done);
+
+	/* Go! */
+
+	error = gpmi_nfc_dma_go(this, dma_channel);
+
+	if (error)
+		dev_err(dev, "[%s] DMA error\n", __func__);
+
+	/* Wait for the interrupt from the BCH block. */
+
+	wait_for_completion(&nfc->bch_done);
+
+	/* Return success. */
+
+	return error;
+
+}
+
+/**
+ * read_page() - Reads a page, using ECC.
+ *
+ * @this:       Per-device data.
+ * @chip:       The chip of interest.
+ * @payload:    The physical address of the payload buffer.
+ * @auxiliary:  The physical address of the auxiliary buffer.
+ */
+static int read_page(struct gpmi_nfc_data *this, unsigned chip,
+				dma_addr_t payload, dma_addr_t auxiliary)
+{
+	struct device        *dev       =  this->dev;
+	struct resources     *resources = &this->resources;
+	struct nfc_hal       *nfc       =  this->nfc;
+	struct nfc_geometry  *nfc_geo   = &this->nfc_geometry;
+	struct mxs_dma_desc  **d        = nfc->dma_descriptors;
+	int                  dma_channel;
+	int                  error = 0;
+	uint32_t             command_mode;
+	uint32_t             address;
+	uint32_t             ecc_command;
+	uint32_t             buffer_mask;
+
+	/* Compute the DMA channel. */
+
+	dma_channel = resources->dma_low_channel + chip;
+
+	/* Wait for the chip to report ready. */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = NO_DMA_XFER;
+	(*d)->cmd.cmd.bits.chain             = 1;
+	(*d)->cmd.cmd.bits.irq               = 0;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 1;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 1;
+	(*d)->cmd.cmd.bits.bytes             = 0;
+
+	(*d)->cmd.address = 0;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode) |
+		BM_GPMI_CTRL0_WORD_LENGTH                |
+		BF_GPMI_CTRL0_CS(chip)                   |
+		BF_GPMI_CTRL0_ADDRESS(address)           |
+		BF_GPMI_CTRL0_XFER_COUNT(0)              ;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Enable the BCH block and read. */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__READ;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+	ecc_command  = BV_GPMI_ECCCTRL_ECC_CMD__DECODE;
+	buffer_mask  = BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_PAGE |
+				BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_AUXONLY;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = NO_DMA_XFER;
+	(*d)->cmd.cmd.bits.chain             = 1;
+	(*d)->cmd.cmd.bits.irq               = 0;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 0;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 6;
+	(*d)->cmd.cmd.bits.bytes             = 0;
+
+	(*d)->cmd.address = 0;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode)              |
+		BM_GPMI_CTRL0_WORD_LENGTH                             |
+		BF_GPMI_CTRL0_CS(chip)                                |
+		BF_GPMI_CTRL0_ADDRESS(address)                        |
+		BF_GPMI_CTRL0_XFER_COUNT(nfc_geo->page_size_in_bytes) ;
+
+	(*d)->cmd.pio_words[1] = 0;
+	(*d)->cmd.pio_words[2] =
+		BM_GPMI_ECCCTRL_ENABLE_ECC 	         |
+		BF_GPMI_ECCCTRL_ECC_CMD(ecc_command)     |
+		BF_GPMI_ECCCTRL_BUFFER_MASK(buffer_mask) ;
+	(*d)->cmd.pio_words[3] = nfc_geo->page_size_in_bytes;
+	(*d)->cmd.pio_words[4] = payload;
+	(*d)->cmd.pio_words[5] = auxiliary;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Disable the BCH block */
+
+	command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY;
+	address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = NO_DMA_XFER;
+	(*d)->cmd.cmd.bits.chain             = 1;
+	(*d)->cmd.cmd.bits.irq               = 0;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 1;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 1;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 3;
+	(*d)->cmd.cmd.bits.bytes             = 0;
+
+	(*d)->cmd.address = 0;
+
+	(*d)->cmd.pio_words[0] =
+		BF_GPMI_CTRL0_COMMAND_MODE(command_mode)              |
+		BM_GPMI_CTRL0_WORD_LENGTH                             |
+		BF_GPMI_CTRL0_CS(chip)                                |
+		BF_GPMI_CTRL0_ADDRESS(address)                        |
+		BF_GPMI_CTRL0_XFER_COUNT(nfc_geo->page_size_in_bytes) ;
+
+	(*d)->cmd.pio_words[1] = 0;
+	(*d)->cmd.pio_words[2] = 0;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Deassert the NAND lock and interrupt. */
+
+	(*d)->cmd.cmd.data                   = 0;
+	(*d)->cmd.cmd.bits.command           = NO_DMA_XFER;
+	(*d)->cmd.cmd.bits.chain             = 0;
+	(*d)->cmd.cmd.bits.irq               = 1;
+	(*d)->cmd.cmd.bits.nand_lock         = 0;
+	(*d)->cmd.cmd.bits.nand_wait_4_ready = 0;
+	(*d)->cmd.cmd.bits.dec_sem           = 1;
+	(*d)->cmd.cmd.bits.wait4end          = 0;
+	(*d)->cmd.cmd.bits.halt_on_terminate = 0;
+	(*d)->cmd.cmd.bits.terminate_flush   = 0;
+	(*d)->cmd.cmd.bits.pio_words         = 0;
+	(*d)->cmd.cmd.bits.bytes             = 0;
+
+	(*d)->cmd.address = 0;
+
+	mxs_dma_desc_append(dma_channel, (*d));
+	d++;
+
+	/* Prepare to receive an interrupt from the BCH block. */
+
+	init_completion(&nfc->bch_done);
+
+	/* Go! */
+
+	error = gpmi_nfc_dma_go(this, dma_channel);
+
+	if (error)
+		dev_err(dev, "[%s] DMA error\n", __func__);
+
+	/* Wait for the interrupt from the BCH block. */
+
+	wait_for_completion(&nfc->bch_done);
+
+	/* Return success. */
+
+	return error;
+
+}
+
+/* This structure represents the NFC HAL for this version of the hardware. */
+
+struct nfc_hal  gpmi_nfc_hal_v1 = {
+	.version                     = 1,
+	.description                 = "8-chip GPMI and BCH",
+	.max_chip_count              = 8,
+	.max_data_setup_cycles       = (BM_GPMI_TIMING0_DATA_SETUP >>
+						BP_GPMI_TIMING0_DATA_SETUP),
+	.internal_data_setup_in_ns   = 0,
+	.max_sample_delay_factor     = (BM_GPMI_CTRL1_RDN_DELAY >>
+						BP_GPMI_CTRL1_RDN_DELAY),
+	.max_dll_clock_period_in_ns  = 32,
+	.max_dll_delay_in_ns         = 16,
+	.init                        = init,
+	.set_geometry                = set_geometry,
+	.set_timing                  = set_timing,
+	.get_timing                  = get_timing,
+	.exit                        = exit,
+	.begin                       = begin,
+	.end                         = end,
+	.clear_bch                   = clear_bch,
+	.is_ready                    = is_ready,
+	.send_command                = send_command,
+	.send_data                   = send_data,
+	.read_data                   = read_data,
+	.send_page                   = send_page,
+	.read_page                   = read_page,
+};
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-main.c b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-main.c
new file mode 100644
index 000000000000..0143f1c358ff
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-main.c
@@ -0,0 +1,1879 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "gpmi-nfc.h"
+
+/*
+ * This structure contains the "safe" GPMI timing that should succeed with any
+ * NAND Flash device (although, with less-than-optimal performance).
+ */
+
+static struct gpmi_nfc_timing  safe_timing = {
+	.data_setup_in_ns        = 80,
+	.data_hold_in_ns         = 60,
+	.address_setup_in_ns     = 25,
+	.gpmi_sample_delay_in_ns =  6,
+	.tREA_in_ns              = -1,
+	.tRLOH_in_ns             = -1,
+	.tRHOH_in_ns             = -1,
+};
+
+/*
+ * This array has a pointer to every NFC HAL structure. The probing process will
+ * find and install the one that matches the version given by the platform.
+ */
+
+static struct nfc_hal  *(nfc_hals[]) = {
+	&gpmi_nfc_hal_v0,
+	&gpmi_nfc_hal_v1,
+};
+
+/*
+ * This array has a pointer to every Boot ROM Helper structure. The probing
+ * process will find and install the one that matches the version given by the
+ * platform.
+ */
+
+static struct boot_rom_helper  *(boot_rom_helpers[]) = {
+	&gpmi_nfc_boot_rom_helper_v0,
+	&gpmi_nfc_boot_rom_helper_v1,
+};
+
+/**
+ * show_device_report() - Contains a shell script that creates a handy report.
+ *
+ * @d:     The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer that will receive a representation of the attribute.
+ */
+static ssize_t show_device_report(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+
+	static const char *script =
+		"GPMISysDirectory=/sys/bus/platform/devices/gpmi-nfc.0\n"
+		"\n"
+		"NodeList='\n"
+		"physical_geometry\n"
+		"nfc_info\n"
+		"nfc_geometry\n"
+		"timing\n"
+		"timing_diagram\n"
+		"rom_geometry\n"
+		"mtd_nand_info\n"
+		"mtd_info\n"
+		"'\n"
+		"\n"
+		"cd ${GPMISysDirectory}\n"
+		"\n"
+		"printf '\\n'\n"
+		"\n"
+		"for NodeName in ${NodeList}\n"
+		"do\n"
+		"\n"
+		"    printf '--------------------------------------------\\n'\n"
+		"    printf '%s\\n' ${NodeName}\n"
+		"    printf '--------------------------------------------\\n'\n"
+		"    printf '\\n'\n"
+		"\n"
+		"    cat ${NodeName}\n"
+		"\n"
+		"    printf '\\n'\n"
+		"\n"
+		"done\n"
+		;
+
+	return sprintf(buf, "%s", script);
+
+}
+
+/**
+ * show_device_numchips() - Shows the number of physical chips.
+ *
+ * This node is made obsolete by the physical_geometry node, but we keep it for
+ * backward compatibility (especially for kobs).
+ *
+ * @d:     The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer that will receive a representation of the attribute.
+ */
+static ssize_t show_device_numchips(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct gpmi_nfc_data      *this     = dev_get_drvdata(dev);
+	struct physical_geometry  *physical = &this->physical_geometry;
+
+	return sprintf(buf, "%d\n", physical->chip_count);
+
+}
+
+/**
+ * show_device_physical_geometry() - Shows the physical Flash device geometry.
+ *
+ * @dev:   The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer that will receive a representation of the attribute.
+ */
+static ssize_t show_device_physical_geometry(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct gpmi_nfc_data      *this     = dev_get_drvdata(dev);
+	struct nand_device_info   *info     = &this->device_info;
+	struct physical_geometry  *physical = &this->physical_geometry;
+
+	return sprintf(buf,
+		"Description            : %s\n"
+		"Chip Count             : %u\n"
+		"Chip Size in Bytes     : %llu\n"
+		"Block Size in Bytes    : %u\n"
+		"Page Data Size in Bytes: %u\n"
+		"Page OOB Size in Bytes : %u\n"
+		,
+		info->description,
+		physical->chip_count,
+		physical->chip_size_in_bytes,
+		physical->block_size_in_bytes,
+		physical->page_data_size_in_bytes,
+		physical->page_oob_size_in_bytes
+	);
+
+}
+
+/**
+ * show_device_nfc_info() - Shows the NFC-specific information.
+ *
+ * @dev:   The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer that will receive a representation of the attribute.
+ */
+static ssize_t show_device_nfc_info(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct gpmi_nfc_data  *this = dev_get_drvdata(dev);
+	struct nfc_hal        *nfc  =  this->nfc;
+
+	return sprintf(buf,
+		"Version                   : %u\n"
+		"Description               : %s\n"
+		"Max Chip Count            : %u\n"
+		"Max Data Setup Cycles     : 0x%x\n"
+		"Internal Data Setup in ns : %u\n"
+		"Max Sample Delay Factor   : 0x%x\n"
+		"Max DLL Clock Period in ns: %u\n"
+		"Max DLL Delay in ns       : %u\n"
+		,
+		nfc->version,
+		nfc->description,
+		nfc->max_chip_count,
+		nfc->max_data_setup_cycles,
+		nfc->internal_data_setup_in_ns,
+		nfc->max_sample_delay_factor,
+		nfc->max_dll_clock_period_in_ns,
+		nfc->max_dll_delay_in_ns
+	);
+
+}
+
+/**
+ * show_device_nfc_geometry() - Shows the NFC view of the device geometry.
+ *
+ * @dev:   The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer that will receive a representation of the attribute.
+ */
+static ssize_t show_device_nfc_geometry(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct gpmi_nfc_data  *this = dev_get_drvdata(dev);
+	struct nfc_geometry   *nfc  = &this->nfc_geometry;
+
+	return sprintf(buf,
+		"ECC Algorithm          : %s\n"
+		"ECC Strength           : %u\n"
+		"Page Size in Bytes     : %u\n"
+		"Metadata Size in Bytes : %u\n"
+		"ECC Chunk Size in Bytes: %u\n"
+		"ECC Chunk Count        : %u\n"
+		"Payload Size in Bytes  : %u\n"
+		"Auxiliary Size in Bytes: %u\n"
+		"Auxiliary Status Offset: %u\n"
+		"Block Mark Byte Offset : %u\n"
+		"Block Mark Bit Offset  : %u\n"
+		,
+		nfc->ecc_algorithm,
+		nfc->ecc_strength,
+		nfc->page_size_in_bytes,
+		nfc->metadata_size_in_bytes,
+		nfc->ecc_chunk_size_in_bytes,
+		nfc->ecc_chunk_count,
+		nfc->payload_size_in_bytes,
+		nfc->auxiliary_size_in_bytes,
+		nfc->auxiliary_status_offset,
+		nfc->block_mark_byte_offset,
+		nfc->block_mark_bit_offset
+	);
+
+}
+
+/**
+ * show_device_rom_geometry() - Shows the Boot ROM Helper's geometry.
+ *
+ * @dev:   The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer that will receive a representation of the attribute.
+ */
+static ssize_t show_device_rom_geometry(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct gpmi_nfc_data      *this = dev_get_drvdata(dev);
+	struct boot_rom_geometry  *rom  = &this->rom_geometry;
+
+	return sprintf(buf,
+		"Boot Area Count           : %u\n"
+		"Boot Area Size in Bytes   : %u\n"
+		"Stride Size in Pages      : %u\n"
+		"Seach Area Stride Exponent: %u\n"
+		,
+		rom->boot_area_count,
+		rom->boot_area_size_in_bytes,
+		rom->stride_size_in_pages,
+		rom->search_area_stride_exponent
+	);
+
+}
+
+/**
+ * show_device_mtd_nand_info() - Shows the device's MTD NAND-specific info.
+ *
+ * @dev:   The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer that will receive a representation of the attribute.
+ */
+static ssize_t show_device_mtd_nand_info(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int                        o = 0;
+	unsigned int               i;
+	unsigned int               j;
+	static const unsigned int  columns = 8;
+	struct gpmi_nfc_data       *this = dev_get_drvdata(dev);
+	struct mil                 *mil  = &this->mil;
+	struct nand_chip           *nand = &mil->nand;
+
+	o += sprintf(buf + o,
+		"Options                       : 0x%08x\n"
+		"Chip Count                    : %u\n"
+		"Chip Size in Bytes            : %llu\n"
+		"Minimum Writable Size in Bytes: %u\n"
+		"Page Shift                    : %u\n"
+		"Page Mask                     : 0x%x\n"
+		"Block Shift                   : %u\n"
+		"BBT Block Shift               : %u\n"
+		"Chip Shift                    : %u\n"
+		"Block Mark Offset             : %u\n"
+		"Cached Page Number            : %d\n"
+		,
+		nand->options,
+		nand->numchips,
+		nand->chipsize,
+		nand->subpagesize,
+		nand->page_shift,
+		nand->pagemask,
+		nand->phys_erase_shift,
+		nand->bbt_erase_shift,
+		nand->chip_shift,
+		nand->badblockpos,
+		nand->pagebuf
+	);
+
+	o += sprintf(buf + o,
+		"ECC Byte Count       : %u\n"
+		,
+		nand->ecc.layout->eccbytes
+	);
+
+	/* Loop over rows. */
+
+	for (i = 0; (i * columns) < nand->ecc.layout->eccbytes; i++) {
+
+		/* Loop over columns within rows. */
+
+		for (j = 0; j < columns; j++) {
+
+			if (((i * columns) + j) >= nand->ecc.layout->eccbytes)
+				break;
+
+			o += sprintf(buf + o, " %3u",
+				nand->ecc.layout->eccpos[(i * columns) + j]);
+
+		}
+
+		o += sprintf(buf + o, "\n");
+
+	}
+
+	o += sprintf(buf + o,
+		"OOB Available Bytes  : %u\n"
+		,
+		nand->ecc.layout->oobavail
+	);
+
+	j = 0;
+
+	for (i = 0; j < nand->ecc.layout->oobavail; i++) {
+
+		j += nand->ecc.layout->oobfree[i].length;
+
+		o += sprintf(buf + o,
+			"  [%3u, %2u]\n"
+			,
+			nand->ecc.layout->oobfree[i].offset,
+			nand->ecc.layout->oobfree[i].length
+		);
+
+	}
+
+	return o;
+
+}
+
+/**
+ * show_device_mtd_info() - Shows the device's MTD-specific information.
+ *
+ * @dev:   The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer that will receive a representation of the attribute.
+ */
+static ssize_t show_device_mtd_info(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int                        o = 0;
+	unsigned int               i;
+	unsigned int               j;
+	static const unsigned int  columns = 8;
+	struct gpmi_nfc_data       *this = dev_get_drvdata(dev);
+	struct mil                 *mil  = &this->mil;
+	struct mtd_info            *mtd  = &mil->mtd;
+
+	o += sprintf(buf + o,
+		"Name               : %s\n"
+		"Type               : %u\n"
+		"Flags              : 0x%08x\n"
+		"Size in Bytes      : %llu\n"
+		"Erase Region Count : %d\n"
+		"Erase Size in Bytes: %u\n"
+		"Write Size in Bytes: %u\n"
+		"OOB Size in Bytes  : %u\n"
+		"Errors Corrected   : %u\n"
+		"Failed Reads       : %u\n"
+		"Bad Block Count    : %u\n"
+		"BBT Block Count    : %u\n"
+		,
+		mtd->name,
+		mtd->type,
+		mtd->flags,
+		mtd->size,
+		mtd->numeraseregions,
+		mtd->erasesize,
+		mtd->writesize,
+		mtd->oobsize,
+		mtd->ecc_stats.corrected,
+		mtd->ecc_stats.failed,
+		mtd->ecc_stats.badblocks,
+		mtd->ecc_stats.bbtblocks
+	);
+
+	o += sprintf(buf + o,
+		"ECC Byte Count     : %u\n"
+		,
+		mtd->ecclayout->eccbytes
+	);
+
+	/* Loop over rows. */
+
+	for (i = 0; (i * columns) < mtd->ecclayout->eccbytes; i++) {
+
+		/* Loop over columns within rows. */
+
+		for (j = 0; j < columns; j++) {
+
+			if (((i * columns) + j) >= mtd->ecclayout->eccbytes)
+				break;
+
+			o += sprintf(buf + o, " %3u",
+				mtd->ecclayout->eccpos[(i * columns) + j]);
+
+		}
+
+		o += sprintf(buf + o, "\n");
+
+	}
+
+	o += sprintf(buf + o,
+		"OOB Available Bytes: %u\n"
+		,
+		mtd->ecclayout->oobavail
+	);
+
+	j = 0;
+
+	for (i = 0; j < mtd->ecclayout->oobavail; i++) {
+
+		j += mtd->ecclayout->oobfree[i].length;
+
+		o += sprintf(buf + o,
+			"  [%3u, %2u]\n"
+			,
+			mtd->ecclayout->oobfree[i].offset,
+			mtd->ecclayout->oobfree[i].length
+		);
+
+	}
+
+	return o;
+
+}
+
+/**
+  * show_device_timing_diagram() - Shows a timing diagram.
+ *
+ * @dev:   The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer that will receive a representation of the attribute.
+ */
+static ssize_t show_device_timing_diagram(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct gpmi_nfc_data             *this      = dev_get_drvdata(dev);
+	struct gpmi_nfc_platform_data    *pdata     =  this->pdata;
+	struct nfc_hal                   *nfc       = this->nfc;
+	struct gpmi_nfc_timing           timing     = nfc->timing;
+	struct gpmi_nfc_hardware_timing  hardware_timing;
+	unsigned long                    clock_frequency_in_hz;
+	unsigned long                    clock_period_in_ns;
+	unsigned int                     data_setup_in_ns;
+	unsigned int                     dll_delay_shift;
+	unsigned int                     sample_delay_in_ns;
+	unsigned int                     tDS_in_ns;
+	unsigned int                     tOPEN_in_ns;
+	unsigned int                     tCLOSE_in_ns;
+	unsigned int                     tEYE_in_ns;
+	unsigned int                     tDELAY_in_ns;
+	unsigned int                     tDS;
+	unsigned int                     tOPEN;
+	unsigned int                     tCLOSE;
+	unsigned int                     tEYE;
+	unsigned int                     tDELAY;
+	const unsigned int               diagram_width_in_chars = 55;
+	unsigned int                     diagram_width_in_ns;
+	int                              o = 0;
+	unsigned int                     i;
+
+	/*
+	 * If there are any timing characteristics we need, but don't know, we
+	 * pretend they're zero.
+	 */
+
+	if (timing.tREA_in_ns < 0)
+		timing.tREA_in_ns = 0;
+
+	if (timing.tRHOH_in_ns < 0)
+		timing.tRHOH_in_ns = 0;
+
+	/* Get information about the current/last I/O transaction. */
+
+	nfc->get_timing(this, &clock_frequency_in_hz, &hardware_timing);
+
+	clock_period_in_ns = 1000000000 / clock_frequency_in_hz;
+
+	/* Compute basic timing facts. */
+
+	data_setup_in_ns =
+		hardware_timing.data_setup_in_cycles * clock_period_in_ns;
+
+	/* Compute data sample delay facts. */
+
+	dll_delay_shift = 3;
+
+	if (hardware_timing.use_half_periods)
+		dll_delay_shift++;
+
+	sample_delay_in_ns =
+		(hardware_timing.sample_delay_factor * clock_period_in_ns) >>
+								dll_delay_shift;
+
+	/* Compute the basic metrics in the diagram, in nanoseconds. */
+
+	tDS_in_ns    = data_setup_in_ns;
+	tOPEN_in_ns  = pdata->max_prop_delay_in_ns + timing.tREA_in_ns;
+	tCLOSE_in_ns = pdata->min_prop_delay_in_ns + timing.tRHOH_in_ns;
+	tEYE_in_ns   = tDS_in_ns + tCLOSE_in_ns - tOPEN_in_ns;
+	tDELAY_in_ns = sample_delay_in_ns;
+
+	/*
+	 * We need to translate nanosecond timings into character widths in the
+	 * diagram. The first step is to discover how "wide" the diagram is in
+	 * nanoseconds. That depends on which happens latest: the sample point
+	 * or the close of the eye.
+	 */
+
+	if (tCLOSE_in_ns >= tDELAY_in_ns)
+		diagram_width_in_ns = tDS_in_ns + tCLOSE_in_ns;
+	else
+		diagram_width_in_ns = tDS_in_ns + tDELAY_in_ns;
+
+	/* Convert the metrics that appear in the diagram. */
+
+	tDS    = (tDS_in_ns    * diagram_width_in_chars) / diagram_width_in_ns;
+	tOPEN  = (tOPEN_in_ns  * diagram_width_in_chars) / diagram_width_in_ns;
+	tCLOSE = (tCLOSE_in_ns * diagram_width_in_chars) / diagram_width_in_ns;
+	tEYE   = (tEYE_in_ns   * diagram_width_in_chars) / diagram_width_in_ns;
+	tDELAY = (tDELAY_in_ns * diagram_width_in_chars) / diagram_width_in_ns;
+
+	/*
+	 * Show the results.
+	 *
+	 * This code is really ugly, but it draws a pretty picture :)
+	 */
+
+	o += sprintf(buf + o, "\n");
+
+
+	o += sprintf(buf + o, "Sample ______");
+	for (i = 0; i < tDS; i++)
+		o += sprintf(buf + o, "_");
+	if (tDELAY > 0)
+		for (i = 0; i < (tDELAY - 1); i++)
+			o += sprintf(buf + o, "_");
+	o += sprintf(buf + o, "|");
+	for (i = 0; i < (diagram_width_in_chars - (tDS + tDELAY)); i++)
+		o += sprintf(buf + o, "_");
+	o += sprintf(buf + o, "\n");
+
+
+	o += sprintf(buf + o, "Strobe       ");
+	for (i = 0; i < tDS; i++)
+		o += sprintf(buf + o, " ");
+	o += sprintf(buf + o, "|");
+	if (tDELAY > 1) {
+		for (i = 2; i < tDELAY; i++)
+			o += sprintf(buf + o, "-");
+		o += sprintf(buf + o, "|");
+	}
+	o += sprintf(buf + o, " tDELAY\n");
+
+
+	o += sprintf(buf + o, "\n");
+
+
+	o += sprintf(buf + o, "         tDS ");
+	o += sprintf(buf + o, "|");
+	if (tDS > 1) {
+		for (i = 2; i < tDS; i++)
+			o += sprintf(buf + o, "-");
+		o += sprintf(buf + o, "|");
+	}
+	o += sprintf(buf + o, "\n");
+
+
+	o += sprintf(buf + o, "       ______");
+	for (i = 0; i < tDS; i++)
+		o += sprintf(buf + o, " ");
+	for (i = 0; i < (diagram_width_in_chars - tDS); i++)
+		o += sprintf(buf + o, "_");
+	o += sprintf(buf + o, "\n");
+
+
+	o += sprintf(buf + o, "RDN          ");
+	if (tDS > 0) {
+		if (tDS == 1)
+			o += sprintf(buf + o, "V");
+		else {
+			o += sprintf(buf + o, "\\");
+			for (i = 2; i < tDS; i++)
+				o += sprintf(buf + o, "_");
+			o += sprintf(buf + o, "/");
+		}
+	}
+	o += sprintf(buf + o, "\n");
+
+
+	o += sprintf(buf + o, "\n");
+
+
+	o += sprintf(buf + o, "       tOPEN ");
+	o += sprintf(buf + o, "|");
+	if (tOPEN > 1) {
+		for (i = 2; i < tOPEN; i++)
+			o += sprintf(buf + o, "-");
+		o += sprintf(buf + o, "|");
+	}
+	o += sprintf(buf + o, "\n");
+
+
+	o += sprintf(buf + o, "             ");
+	for (i = 0; i < tDS; i++)
+		o += sprintf(buf + o, " ");
+	o += sprintf(buf + o, "|");
+	if (tCLOSE > 1) {
+		for (i = 2; i < tCLOSE; i++)
+			o += sprintf(buf + o, "-");
+		o += sprintf(buf + o, "|");
+	}
+	o += sprintf(buf + o, " tCLOSE\n");
+
+
+	o += sprintf(buf + o, "             ");
+	for (i = 0; i < tOPEN; i++)
+		o += sprintf(buf + o, " ");
+	if (tEYE > 2) {
+		o += sprintf(buf + o, " ");
+		for (i = 2; i < tEYE; i++)
+			o += sprintf(buf + o, "_");
+	}
+	o += sprintf(buf + o, "\n");
+
+
+	o += sprintf(buf + o, "Data   ______");
+	for (i = 0; i < tOPEN; i++)
+		o += sprintf(buf + o, "_");
+	if (tEYE > 0) {
+		if (tEYE == 1)
+			o += sprintf(buf + o, "|");
+		else {
+			o += sprintf(buf + o, "/");
+			for (i = 2; i < tEYE; i++)
+				o += sprintf(buf + o, " ");
+			o += sprintf(buf + o, "\\");
+		}
+	}
+	for (i = 0; i < (diagram_width_in_chars - (tOPEN + tEYE)); i++)
+		o += sprintf(buf + o, "_");
+	o += sprintf(buf + o, "\n");
+
+
+	o += sprintf(buf + o, "             ");
+	for (i = 0; i < tOPEN; i++)
+		o += sprintf(buf + o, " ");
+	if (tEYE > 0) {
+		if (tEYE == 1)
+			o += sprintf(buf + o, "|");
+		else {
+			o += sprintf(buf + o, "\\");
+			for (i = 2; i < tEYE; i++)
+				o += sprintf(buf + o, "_");
+			o += sprintf(buf + o, "/");
+		}
+	}
+	o += sprintf(buf + o, "\n");
+
+
+	o += sprintf(buf + o, "             ");
+	for (i = 0; i < tOPEN; i++)
+		o += sprintf(buf + o, " ");
+	o += sprintf(buf + o, "|");
+	if (tEYE > 1) {
+		for (i = 2; i < tEYE; i++)
+			o += sprintf(buf + o, "-");
+		o += sprintf(buf + o, "|");
+	}
+	o += sprintf(buf + o, " tEYE\n");
+
+
+	o += sprintf(buf + o, "\n");
+	o += sprintf(buf + o, "tDS   : %u ns\n", tDS_in_ns);
+	o += sprintf(buf + o, "tOPEN : %u ns\n", tOPEN_in_ns);
+	o += sprintf(buf + o, "tCLOSE: %u ns\n", tCLOSE_in_ns);
+	o += sprintf(buf + o, "tEYE  : %u ns\n", tEYE_in_ns);
+	o += sprintf(buf + o, "tDELAY: %u ns\n", tDELAY_in_ns);
+	o += sprintf(buf + o, "\n");
+
+
+	return o;
+
+}
+
+/**
+ * store_device_invalidate_page_cache() - Invalidates the device's page cache.
+ *
+ * @dev:   The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer containing a new attribute value.
+ * @size:  The size of the buffer.
+ */
+static ssize_t store_device_invalidate_page_cache(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct gpmi_nfc_data  *this = dev_get_drvdata(dev);
+
+	/* Invalidate the page cache. */
+
+	this->mil.nand.pagebuf = -1;
+
+	/* Return success. */
+
+	return size;
+
+}
+
+/**
+ * store_device_mark_block_bad() - Marks a block as bad.
+ *
+ * @dev:   The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer containing a new attribute value.
+ * @size:  The size of the buffer.
+ */
+static ssize_t store_device_mark_block_bad(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct gpmi_nfc_data  *this = dev_get_drvdata(dev);
+	struct mil            *mil  = &this->mil;
+	struct mtd_info       *mtd  = &mil->mtd;
+	struct nand_chip      *nand = &mil->nand;
+	unsigned long         block_number;
+	loff_t                byte_address;
+	int                   error;
+
+	/* Look for nonsense. */
+
+	if (!size)
+		return -EINVAL;
+
+	/* Try to understand the block number. */
+
+	if (strict_strtoul(buf, 0, &block_number))
+		return -EINVAL;
+
+	/* Compute the byte address of this block. */
+
+	byte_address = block_number << nand->phys_erase_shift;
+
+	/* Attempt to mark the block bad. */
+
+	error = mtd->block_markbad(mtd, byte_address);
+
+	if (error)
+		return error;
+
+	/* Return success. */
+
+	return size;
+
+}
+
+/**
+ * show_device_ignorebad() - Shows the value of the 'ignorebad' flag.
+ *
+ * @d:     The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer that will receive a representation of the attribute.
+ */
+static ssize_t show_device_ignorebad(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct gpmi_nfc_data  *this = dev_get_drvdata(dev);
+	struct mil            *mil  = &this->mil;
+
+	return sprintf(buf, "%d\n", mil->ignore_bad_block_marks);
+}
+
+/**
+ * store_device_ignorebad() - Sets the value of the 'ignorebad' flag.
+ *
+ * @dev:   The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer containing a new attribute value.
+ * @size:  The size of the buffer.
+ */
+static ssize_t store_device_ignorebad(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct gpmi_nfc_data  *this = dev_get_drvdata(dev);
+	struct mil            *mil  = &this->mil;
+	const char            *p = buf;
+	unsigned long         v;
+
+	/* Try to make sense of what arrived from user space. */
+
+	if (strict_strtoul(p, 0, &v) < 0)
+		return size;
+
+	if (v > 0)
+		v = 1;
+
+	/* Only do something if the value is changing. */
+
+	if (v != mil->ignore_bad_block_marks) {
+
+		if (v) {
+
+			/*
+			 * If control arrives here, we want to begin ignoring
+			 * bad block marks. Reach into the NAND Flash MTD data
+			 * structures and set the in-memory BBT pointer to NULL.
+			 * This will cause the NAND Flash MTD code to believe
+			 * that it never created a BBT and force it to call our
+			 * block_bad function.
+			 *
+			 * See mil_block_bad for more details.
+			 */
+
+			mil->saved_bbt = mil->nand.bbt;
+			mil->nand.bbt  = 0;
+
+		} else {
+
+			/*
+			 * If control arrives here, we want to stop ignoring
+			 * bad block marks. Restore the NAND Flash MTD's pointer
+			 * to its in-memory BBT.
+			 */
+
+			mil->nand.bbt = mil->saved_bbt;
+
+		}
+
+		mil->ignore_bad_block_marks = v;
+
+	}
+
+	return size;
+
+}
+
+/**
+ * show_device_inject_ecc_error() - Shows the device's error injection flag.
+ *
+ * @dev:   The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer that will receive a representation of the attribute.
+ */
+static ssize_t show_device_inject_ecc_error(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct gpmi_nfc_data  *this = dev_get_drvdata(dev);
+	struct mil            *mil  = &this->mil;
+
+	return sprintf(buf, "%d\n", mil->inject_ecc_error);
+
+}
+
+/**
+ * store_device_inject_ecc_error() - Sets the device's error injection flag.
+ *
+ * @dev:   The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer containing a new attribute value.
+ * @size:  The size of the buffer.
+ */
+static ssize_t store_device_inject_ecc_error(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct gpmi_nfc_data  *this = dev_get_drvdata(dev);
+	struct mil            *mil  = &this->mil;
+	long                  new_inject_ecc_error;
+
+	/* Look for nonsense. */
+
+	if (!size)
+		return -EINVAL;
+
+	/* Try to understand the ECC error count. */
+
+	if (strict_strtol(buf, 0, &new_inject_ecc_error))
+		return -EINVAL;
+
+	/* Store the value. */
+
+	mil->inject_ecc_error = new_inject_ecc_error;
+
+	/* Return success. */
+
+	return size;
+
+}
+
+/**
+ * show_device_timing_help() - Show help for setting timing.
+ *
+ * @d:     The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer that will receive a representation of the attribute.
+ */
+static ssize_t show_device_timing_help(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+
+	static const char *help =
+		"<Data Setup>,<Data Hold>,<Address Setup>,<Sample Delay>,"
+						"<tREA>,<tRLOH>,<tRHOH>\n";
+
+	return sprintf(buf, "%s", help);
+
+}
+
+/**
+ * show_device_timing() - Shows the current timing.
+ *
+ * @d:     The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer that will receive a representation of the attribute.
+ */
+static ssize_t show_device_timing(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct gpmi_nfc_data             *this      = dev_get_drvdata(dev);
+	struct gpmi_nfc_platform_data    *pdata     = this->pdata;
+	struct nfc_hal                   *nfc       = this->nfc;
+	struct gpmi_nfc_timing           *recorded  = &nfc->timing;
+	unsigned long                    clock_frequency_in_hz;
+	unsigned long                    clock_period_in_ns;
+	struct gpmi_nfc_hardware_timing  hardware;
+	unsigned int                     effective_data_setup_in_ns;
+	unsigned int                     effective_data_hold_in_ns;
+	unsigned int                     effective_address_setup_in_ns;
+	unsigned int                     dll_delay_shift;
+	unsigned int                     effective_sample_delay_in_ns;
+
+	/* Get information about the current/last I/O transaction. */
+
+	nfc->get_timing(this, &clock_frequency_in_hz, &hardware);
+
+	clock_period_in_ns = 1000000000 / clock_frequency_in_hz;
+
+	/* Compute basic timing facts. */
+
+	effective_data_setup_in_ns    =
+			hardware.data_setup_in_cycles    * clock_period_in_ns;
+	effective_data_hold_in_ns     =
+			hardware.data_hold_in_cycles     * clock_period_in_ns;
+	effective_address_setup_in_ns =
+			hardware.address_setup_in_cycles * clock_period_in_ns;
+
+	/* Compute data sample delay facts. */
+
+	dll_delay_shift = 3;
+
+	if (hardware.use_half_periods)
+		dll_delay_shift++;
+
+	effective_sample_delay_in_ns =
+		(hardware.sample_delay_factor * clock_period_in_ns) >>
+								dll_delay_shift;
+
+	/* Show the results. */
+
+	return sprintf(buf,
+		"Minimum Propagation Delay in ns  : %u\n"
+		"Maximum Propagation Delay in ns  : %u\n"
+		"Clock Frequency in Hz            : %lu\n"
+		"Clock Period in ns               : %lu\n"
+		"Recorded  Data Setup in ns       : %d\n"
+		"Hardware  Data Setup in cycles   : %u\n"
+		"Effective Data Setup in ns       : %u\n"
+		"Recorded  Data Hold in ns        : %d\n"
+		"Hardware  Data Hold in cycles    : %u\n"
+		"Effective Data Hold in ns        : %u\n"
+		"Recorded  Address Setup in ns    : %d\n"
+		"Hardware  Address Setup in cycles: %u\n"
+		"Effective Address Setup in ns    : %u\n"
+		"Using Half Period                : %s\n"
+		"Recorded  Sample Delay in ns     : %d\n"
+		"Hardware  Sample Delay Factor    : %u\n"
+		"Effective Sample Delay in ns     : %u\n"
+		"Recorded  tREA in ns             : %d\n"
+		"Recorded  tRLOH in ns            : %d\n"
+		"Recorded  tRHOH in ns            : %d\n"
+		,
+		pdata->min_prop_delay_in_ns,
+		pdata->max_prop_delay_in_ns,
+		clock_frequency_in_hz,
+		clock_period_in_ns,
+		recorded->data_setup_in_ns,
+		hardware .data_setup_in_cycles,
+		effective_data_setup_in_ns,
+		recorded->data_hold_in_ns,
+		hardware .data_hold_in_cycles,
+		effective_data_hold_in_ns,
+		recorded->address_setup_in_ns,
+		hardware .address_setup_in_cycles,
+		effective_address_setup_in_ns,
+		hardware .use_half_periods ? "Yes" : "No",
+		recorded->gpmi_sample_delay_in_ns,
+		hardware .sample_delay_factor,
+		effective_sample_delay_in_ns,
+		recorded->tREA_in_ns,
+		recorded->tRLOH_in_ns,
+		recorded->tRHOH_in_ns);
+
+}
+
+/**
+ * store_device_timing() - Sets the current timing.
+ *
+ * @dev:   The device of interest.
+ * @attr:  The attribute of interest.
+ * @buf:   A buffer containing a new attribute value.
+ * @size:  The size of the buffer.
+ */
+static ssize_t store_device_timing(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct gpmi_nfc_data    *this = dev_get_drvdata(dev);
+	struct nfc_hal          *nfc  = this->nfc;
+	const char              *p    = buf;
+	const char              *q;
+	char                    tmps[20];
+	long                    t;
+	struct gpmi_nfc_timing  new;
+
+	int8_t *field_pointers[] = {
+		&new.data_setup_in_ns,
+		&new.data_hold_in_ns,
+		&new.address_setup_in_ns,
+		&new.gpmi_sample_delay_in_ns,
+		&new.tREA_in_ns,
+		&new.tRLOH_in_ns,
+		&new.tRHOH_in_ns,
+		NULL,
+	};
+
+	int8_t **field_pointer = field_pointers;
+
+	/*
+	 * Loop over comma-separated timing values in the incoming buffer,
+	 * assigning them to fields in the timing structure as we go along.
+	 */
+
+	while (*field_pointer != NULL) {
+
+		/* Clear out the temporary buffer. */
+
+		memset(tmps, 0, sizeof(tmps));
+
+		/* Copy the timing value into the temporary buffer. */
+
+		q = strchr(p, ',');
+		if (q)
+			strncpy(tmps, p, min_t(int, sizeof(tmps) - 1, q - p));
+		else
+			strncpy(tmps, p, sizeof(tmps) - 1);
+
+		/* Attempt to convert the current timing value. */
+
+		if (strict_strtol(tmps, 0, &t) < 0)
+			return -EINVAL;
+
+		if ((t > 127) || (t < -128))
+			return -EINVAL;
+
+		/* Assign this value to the current field. */
+
+		**field_pointer = (int8_t) t;
+		field_pointer++;
+
+		/* Check if we ran out of input too soon. */
+
+		if (!q && *field_pointer)
+			return -EINVAL;
+
+		/* Move past the comma to the next timing value. */
+
+		p = q + 1;
+
+	}
+
+	/* Hand over the timing to the NFC. */
+
+	nfc->set_timing(this, &new);
+
+	/* Return success. */
+
+	return size;
+
+}
+
+/* Device attributes that appear in sysfs. */
+
+static DEVICE_ATTR(report           , 0555, show_device_report           , 0);
+static DEVICE_ATTR(numchips         , 0444, show_device_numchips         , 0);
+static DEVICE_ATTR(physical_geometry, 0444, show_device_physical_geometry, 0);
+static DEVICE_ATTR(nfc_info         , 0444, show_device_nfc_info         , 0);
+static DEVICE_ATTR(nfc_geometry     , 0444, show_device_nfc_geometry     , 0);
+static DEVICE_ATTR(rom_geometry     , 0444, show_device_rom_geometry     , 0);
+static DEVICE_ATTR(mtd_nand_info    , 0444, show_device_mtd_nand_info    , 0);
+static DEVICE_ATTR(mtd_info         , 0444, show_device_mtd_info         , 0);
+static DEVICE_ATTR(timing_diagram   , 0444, show_device_timing_diagram   , 0);
+static DEVICE_ATTR(timing_help      , 0444, show_device_timing_help      , 0);
+
+static DEVICE_ATTR(invalidate_page_cache, 0644,
+	0, store_device_invalidate_page_cache);
+
+static DEVICE_ATTR(mark_block_bad, 0200,
+	0, store_device_mark_block_bad);
+
+static DEVICE_ATTR(ignorebad, 0644,
+	show_device_ignorebad, store_device_ignorebad);
+
+static DEVICE_ATTR(inject_ecc_error, 0644,
+	show_device_inject_ecc_error, store_device_inject_ecc_error);
+
+static DEVICE_ATTR(timing, 0644,
+	show_device_timing, store_device_timing);
+
+static struct device_attribute *device_attributes[] = {
+	&dev_attr_report,
+	&dev_attr_numchips,
+	&dev_attr_physical_geometry,
+	&dev_attr_nfc_info,
+	&dev_attr_nfc_geometry,
+	&dev_attr_rom_geometry,
+	&dev_attr_mtd_nand_info,
+	&dev_attr_mtd_info,
+	&dev_attr_invalidate_page_cache,
+	&dev_attr_mark_block_bad,
+	&dev_attr_ignorebad,
+	&dev_attr_inject_ecc_error,
+	&dev_attr_timing,
+	&dev_attr_timing_help,
+	&dev_attr_timing_diagram,
+};
+
+/**
+ * validate_the_platform() - Validates information about the platform.
+ *
+ * @pdev:  A pointer to the platform device data structure.
+ */
+static int validate_the_platform(struct platform_device *pdev)
+{
+	struct device                  *dev   = &pdev->dev;
+	struct gpmi_nfc_platform_data  *pdata = pdev->dev.platform_data;
+
+	/* Validate the clock name. */
+
+	if (!pdata->clock_name) {
+		dev_err(dev, "No clock name\n");
+		return -ENXIO;
+	}
+
+	/* Validate the partitions. */
+
+	if ((pdata->partitions && (!pdata->partition_count)) ||
+			(!pdata->partitions && (pdata->partition_count))) {
+		dev_err(dev, "Bad partition data\n");
+		return -ENXIO;
+	}
+
+	/* Return success */
+
+	return 0;
+
+}
+
+/**
+ * acquire_register_block() - Tries to acquire and map a register block.
+ *
+ * @this:            Per-device data.
+ * @resource_name:   The name of the resource.
+ * @reg_block_base:  A pointer to a variable that will receive the address of
+ *                   the mapped register block.
+ */
+static int acquire_register_block(struct gpmi_nfc_data *this,
+			const char *resource_name, void **reg_block_base)
+{
+	struct platform_device  *pdev = this->pdev;
+	struct device           *dev  = this->dev;
+	void                    *p;
+	struct resource         *r;
+
+	/* Attempt to get information about the given resource. */
+
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, resource_name);
+
+	if (!r) {
+		dev_err(dev, "Can't get resource information for '%s'\n",
+								resource_name);
+		return -ENXIO;
+	}
+
+	/* Attempt to remap the register block. */
+
+	p = ioremap(r->start, r->end - r->start + 1);
+
+	if (!p) {
+		dev_err(dev, "Can't remap %s\n", resource_name);
+		return -EIO;
+	}
+
+	/* If control arrives here, everything went fine. */
+
+	*reg_block_base = p;
+
+	return 0;
+
+}
+
+/**
+ * release_register_block() - Releases a register block.
+ *
+ * @this:            Per-device data.
+ * @reg_block_base:  A pointer to the mapped register block.
+ */
+static void release_register_block(struct gpmi_nfc_data *this,
+							void *reg_block_base)
+{
+	iounmap(reg_block_base);
+}
+
+/**
+ * acquire_interrupt() - Tries to acquire an interrupt.
+ *
+ * @this:              Per-device data.
+ * @resource_name:     The name of the resource.
+ * @interrupt_handler: A pointer to the function that will handle interrupts
+ *                     from this interrupt number.
+ * @interrupt_number:  A pointer to a variable that will receive the acquired
+ *                     interrupt number.
+ */
+static int acquire_interrupt(
+			struct gpmi_nfc_data *this, const char *resource_name,
+			irq_handler_t interrupt_handler, int *interrupt_number)
+{
+	struct platform_device  *pdev = this->pdev;
+	struct device           *dev  = this->dev;
+	int                     error = 0;
+	int                     i;
+
+	/* Attempt to get information about the given resource. */
+
+	i = platform_get_irq_byname(pdev, resource_name);
+
+	if (i < 0) {
+		dev_err(dev, "Can't get resource information for '%s'\n",
+								resource_name);
+		return -ENXIO;
+	}
+
+	/* Attempt to own the interrupt. */
+
+	error = request_irq(i, interrupt_handler, 0, resource_name, this);
+
+	if (error) {
+		dev_err(dev, "Can't own %s\n", resource_name);
+		return -EIO;
+	}
+
+	/* If control arrives here, everything went fine. */
+
+	*interrupt_number = i;
+
+	return 0;
+
+}
+
+/**
+ * release_interrupt() - Releases an interrupt.
+ *
+ * @this:              Per-device data.
+ * @interrupt_number:  The interrupt number.
+ */
+static void release_interrupt(struct gpmi_nfc_data *this, int interrupt_number)
+{
+	free_irq(interrupt_number, this);
+}
+
+/**
+ * acquire_dma_channels() - Tries to acquire DMA channels.
+ *
+ * @this:           Per-device data.
+ * @resource_name:  The name of the resource.
+ * @low_channel:    A pointer to a variable that will receive the acquired
+ *                  low DMA channel number.
+ * @high_channel:   A pointer to a variable that will receive the acquired
+ *                  high DMA channel number.
+ */
+static int acquire_dma_channels(
+			struct gpmi_nfc_data *this, const char *resource_name,
+			unsigned *low_channel, unsigned *high_channel)
+{
+	struct platform_device  *pdev = this->pdev;
+	struct device           *dev  = this->dev;
+	int                     error = 0;
+	struct resource         *r;
+	unsigned int            dma_channel;
+
+	/* Attempt to get information about the given resource. */
+
+	r = platform_get_resource_byname(pdev, IORESOURCE_DMA, resource_name);
+
+	if (!r) {
+		dev_err(dev, "Can't get resource information for '%s'\n",
+								resource_name);
+		return -ENXIO;
+	}
+
+	/* Loop over DMA channels, attempting to own them. */
+
+	for (dma_channel = r->start; dma_channel <= r->end; dma_channel++) {
+
+		/* Attempt to own the current channel. */
+
+		error = mxs_dma_request(dma_channel, dev, resource_name);
+
+		/* Check if we successfully acquired the current channel. */
+
+		if (error) {
+
+			dev_err(dev, "Can't acquire DMA channel %u\n",
+								dma_channel);
+
+			/* Free all the channels we've already acquired. */
+
+			while (--dma_channel >= 0)
+				mxs_dma_release(dma_channel, dev);
+
+			return error;
+
+		}
+
+		/*
+		 * If control arrives here, we successfully acquired the
+		 * current channel. Continue initializing it.
+		 */
+
+		mxs_dma_reset(dma_channel);
+		mxs_dma_ack_irq(dma_channel);
+
+	}
+
+	/* If control arrives here, all went well. */
+
+	*low_channel  = r->start;
+	*high_channel = r->end;
+
+	return 0;
+
+}
+
+/**
+ * release_dma_channels() - Releases DMA channels.
+ *
+ * @this:          Per-device data.
+ * @low_channel:   The low DMA channel number.
+ * @high_channel:  The high DMA channel number.
+ */
+static void release_dma_channels(struct gpmi_nfc_data *this,
+				unsigned low_channel, unsigned high_channel)
+{
+	struct device  *dev = this->dev;
+	unsigned int   i;
+
+	for (i = low_channel; i <= high_channel; i++)
+		mxs_dma_release(i, dev);
+}
+
+/**
+ * acquire_clock() - Tries to acquire a clock.
+ *
+ * @this:           Per-device data.
+ * @resource_name:  The name of the clock.
+ * @high_channel:   A pointer to a variable that will receive the acquired
+ *                  clock address.
+ */
+static int acquire_clock(struct gpmi_nfc_data *this,
+				const char *clock_name, struct clk **clock)
+{
+	struct device  *dev  = this->dev;
+	int            error = 0;
+	struct clk     *c;
+
+	/* Try to get the clock. */
+
+	c = clk_get(dev, clock_name);
+
+	if (IS_ERR(c)) {
+		error = PTR_ERR(c);
+		dev_err(dev, "Can't own clock %s\n", clock_name);
+		return error;
+	}
+
+	/* If control arrives here, everything went fine. */
+
+	*clock = c;
+
+	return 0;
+
+}
+
+/**
+ * release_clock() - Releases a clock.
+ *
+ * @this:   Per-device data.
+ * @clock:  A pointer to the clock structure.
+ */
+static void release_clock(struct gpmi_nfc_data *this, struct clk *clock)
+{
+	clk_disable(clock);
+	clk_put(clock);
+}
+
+/**
+ * acquire_resources() - Tries to acquire resources.
+ *
+ * @this:  Per-device data.
+ */
+static int acquire_resources(struct gpmi_nfc_data *this)
+{
+	struct gpmi_nfc_platform_data  *pdata     =  this->pdata;
+	struct resources               *resources = &this->resources;
+	int                            error      = 0;
+
+	/* Attempt to acquire the GPMI register block. */
+
+	error = acquire_register_block(this,
+		GPMI_NFC_GPMI_REGS_ADDR_RES_NAME, &(resources->gpmi_regs));
+
+	if (error)
+		goto exit_gpmi_regs;
+
+	/* Attempt to acquire the BCH register block. */
+
+	error = acquire_register_block(this,
+		GPMI_NFC_BCH_REGS_ADDR_RES_NAME, &(resources->bch_regs));
+
+	if (error)
+		goto exit_bch_regs;
+
+	/* Attempt to acquire the BCH interrupt. */
+
+	error = acquire_interrupt(this,
+		GPMI_NFC_BCH_INTERRUPT_RES_NAME,
+		gpmi_nfc_bch_isr, &(resources->bch_interrupt));
+
+	if (error)
+		goto exit_bch_interrupt;
+
+	/* Attempt to acquire the DMA channels. */
+
+	error = acquire_dma_channels(this,
+		GPMI_NFC_DMA_CHANNELS_RES_NAME,
+		&(resources->dma_low_channel), &(resources->dma_high_channel));
+
+	if (error)
+		goto exit_dma_channels;
+
+	/* Attempt to acquire the DMA interrupt. */
+
+	error = acquire_interrupt(this,
+		GPMI_NFC_DMA_INTERRUPT_RES_NAME,
+		gpmi_nfc_dma_isr, &(resources->dma_interrupt));
+
+	if (error)
+		goto exit_dma_interrupt;
+
+	/* Attempt to acquire our clock. */
+
+	error = acquire_clock(this, pdata->clock_name, &(resources->clock));
+
+	if (error)
+		goto exit_clock;
+
+	/* If control arrives here, all went well. */
+
+	return 0;
+
+	/* Control arrives here if something went wrong. */
+
+exit_clock:
+	release_interrupt(this, resources->dma_interrupt);
+exit_dma_interrupt:
+	release_dma_channels(this,
+		resources->dma_low_channel, resources->dma_high_channel);
+exit_dma_channels:
+	release_interrupt(this, resources->bch_interrupt);
+exit_bch_interrupt:
+	release_register_block(this, resources->bch_regs);
+exit_bch_regs:
+	release_register_block(this, resources->gpmi_regs);
+exit_gpmi_regs:
+
+	return error;
+
+}
+
+/**
+ * release_resources() - Releases resources.
+ *
+ * @this:  Per-device data.
+ */
+static void release_resources(struct gpmi_nfc_data *this)
+{
+	struct resources  *resources = &this->resources;
+
+	release_clock(this, resources->clock);
+	release_register_block(this, resources->gpmi_regs);
+	release_register_block(this, resources->bch_regs);
+	release_interrupt(this, resources->bch_interrupt);
+	release_dma_channels(this,
+		resources->dma_low_channel, resources->dma_high_channel);
+	release_interrupt(this, resources->dma_interrupt);
+}
+
+/**
+ * set_up_nfc_hal() - Sets up the NFC HAL.
+ *
+ * @this:  Per-device data.
+ */
+static int set_up_nfc_hal(struct gpmi_nfc_data *this)
+{
+	struct gpmi_nfc_platform_data  *pdata = this->pdata;
+	struct device                  *dev   = this->dev;
+	struct nfc_hal                 *nfc;
+	int                            error = 0;
+	unsigned int                   i;
+
+	/* Attempt to find an NFC HAL that matches the given version. */
+
+	for (i = 0; i < ARRAY_SIZE(nfc_hals); i++) {
+
+		nfc = nfc_hals[i];
+
+		if (nfc->version == pdata->nfc_version) {
+			this->nfc = nfc;
+			break;
+		}
+
+	}
+
+	/* Check if we found a HAL. */
+
+	if (i >= ARRAY_SIZE(nfc_hals)) {
+		dev_err(dev, "Unkown NFC version %u\n", pdata->nfc_version);
+		return -ENXIO;
+	}
+
+	pr_info("NFC: Version %u, %s\n", nfc->version, nfc->description);
+
+	/*
+	 * Check if we can handle the number of chips called for by the platform
+	 * data.
+	 */
+
+	if (pdata->max_chip_count > nfc->max_chip_count) {
+		dev_err(dev, "Platform data calls for %u chips "
+				"but NFC supports a max of %u.\n",
+				pdata->max_chip_count, nfc->max_chip_count);
+		return -ENXIO;
+	}
+
+	/* Initialize the NFC HAL. */
+
+	error = nfc->init(this);
+
+	if (error)
+		return error;
+
+	/* Set up safe timing. */
+
+	nfc->set_timing(this, &safe_timing);
+
+	/*
+	 * If control arrives here, all is well.
+	 */
+
+	return 0;
+
+}
+
+/**
+ * set_up_boot_rom_helper() - Sets up the Boot ROM Helper.
+ *
+ * @this:  Per-device data.
+ */
+static int set_up_boot_rom_helper(struct gpmi_nfc_data *this)
+{
+	struct gpmi_nfc_platform_data  *pdata = this->pdata;
+	struct device                  *dev   = this->dev;
+	unsigned int                   i;
+	struct boot_rom_helper         *rom;
+
+	/* Attempt to find a Boot ROM Helper that matches the given version. */
+
+	for (i = 0; i < ARRAY_SIZE(boot_rom_helpers); i++) {
+
+		rom = boot_rom_helpers[i];
+
+		if (rom->version == pdata->boot_rom_version) {
+			this->rom = rom;
+			break;
+		}
+
+	}
+
+	/* Check if we found a Boot ROM Helper. */
+
+	if (i >= ARRAY_SIZE(boot_rom_helpers)) {
+		dev_err(dev, "Unkown Boot ROM version %u\n",
+						pdata->boot_rom_version);
+		return -ENXIO;
+	}
+
+	pr_info("Boot ROM: Version %u, %s\n", rom->version, rom->description);
+
+	/*
+	 * If control arrives here, all is well.
+	 */
+
+	return 0;
+
+}
+
+/**
+ * manage_sysfs_files() - Creates/removes sysfs files for this device.
+ *
+ * @this:  Per-device data.
+ */
+static void manage_sysfs_files(struct gpmi_nfc_data *this, int create)
+{
+	struct device            *dev = this->dev;
+	int                      error;
+	unsigned int             i;
+	struct device_attribute  **attr;
+
+	for (i = 0, attr = device_attributes;
+			i < ARRAY_SIZE(device_attributes); i++, attr++) {
+
+		if (create) {
+			error = device_create_file(dev, *attr);
+			if (error) {
+				while (--attr >= device_attributes)
+					device_remove_file(dev, *attr);
+				return;
+			}
+		} else {
+			device_remove_file(dev, *attr);
+		}
+
+	}
+
+}
+
+/**
+ * gpmi_nfc_probe() - Probes for a device and, if possible, takes ownership.
+ *
+ * @pdev:  A pointer to the platform device data structure.
+ */
+static int gpmi_nfc_probe(struct platform_device *pdev)
+{
+	int                            error  = 0;
+	struct device                  *dev   = &pdev->dev;
+	struct gpmi_nfc_platform_data  *pdata = pdev->dev.platform_data;
+	struct gpmi_nfc_data           *this  = 0;
+
+	/* Validate the platform device data. */
+
+	error = validate_the_platform(pdev);
+
+	if (error)
+		goto exit_validate_platform;
+
+	/* Allocate memory for the per-device data. */
+
+	this = kzalloc(sizeof(*this), GFP_KERNEL);
+
+	if (!this) {
+		dev_err(dev, "Failed to allocate per-device memory\n");
+		error = -ENOMEM;
+		goto exit_allocate_this;
+	}
+
+	/* Set up our data structures. */
+
+	platform_set_drvdata(pdev, this);
+
+	this->pdev  = pdev;
+	this->dev   = &pdev->dev;
+	this->pdata = pdata;
+
+	/* Acquire the resources we need. */
+
+	error = acquire_resources(this);
+
+	if (error)
+		goto exit_acquire_resources;
+
+	/* Set up the NFC. */
+
+	error = set_up_nfc_hal(this);
+
+	if (error)
+		goto exit_nfc_init;
+
+	/* Set up the platform. */
+
+	if (pdata->platform_init)
+		error = pdata->platform_init(pdata->max_chip_count);
+
+	if (error)
+		goto exit_platform_init;
+
+	/* Set up the Boot ROM Helper. */
+
+	error = set_up_boot_rom_helper(this);
+
+	if (error)
+		goto exit_boot_rom_helper_init;
+
+	/* Initialize the MTD Interface Layer. */
+
+	error = gpmi_nfc_mil_init(this);
+
+	if (error)
+		goto exit_mil_init;
+
+	/* Create sysfs entries for this device. */
+
+	manage_sysfs_files(this, true);
+
+	/* Return success. */
+
+	return 0;
+
+	/* Error return paths begin here. */
+
+exit_mil_init:
+exit_boot_rom_helper_init:
+	if (pdata->platform_exit)
+		pdata->platform_exit(pdata->max_chip_count);
+exit_platform_init:
+	this->nfc->exit(this);
+exit_nfc_init:
+	release_resources(this);
+exit_acquire_resources:
+	platform_set_drvdata(pdev, NULL);
+	kfree(this);
+exit_allocate_this:
+exit_validate_platform:
+	return error;
+
+}
+
+/**
+ * gpmi_nfc_remove() - Dissociates this driver from the given device.
+ *
+ * @pdev:  A pointer to the platform device data structure.
+ */
+static int __exit gpmi_nfc_remove(struct platform_device *pdev)
+{
+	struct gpmi_nfc_data           *this = platform_get_drvdata(pdev);
+	struct gpmi_nfc_platform_data  *pdata = this->pdata;
+
+	manage_sysfs_files(this, false);
+	gpmi_nfc_mil_exit(this);
+	if (pdata->platform_exit)
+		pdata->platform_exit(pdata->max_chip_count);
+	this->nfc->exit(this);
+	release_resources(this);
+	platform_set_drvdata(pdev, NULL);
+	kfree(this);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+
+/**
+ * gpmi_nfc_suspend() - Puts the NFC into a low power state.
+ *
+ * @pdev:  A pointer to the platform device data structure.
+ * @state: The new power state.
+ */
+static int gpmi_nfc_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	return 0;
+}
+
+/**
+ * gpmi_nfc_resume() - Brings the NFC back from a low power state.
+ *
+ * @pdev:  A pointer to the platform device data structure.
+ */
+static int gpmi_nfc_resume(struct platform_device *pdev)
+{
+	return 0;
+}
+
+#else
+
+#define suspend  NULL
+#define resume   NULL
+
+#endif  /* CONFIG_PM */
+
+/*
+ * This structure represents this driver to the platform management system.
+ */
+static struct platform_driver gpmi_nfc_driver = {
+	.driver = {
+		.name = GPMI_NFC_DRIVER_NAME,
+	},
+	.probe   = gpmi_nfc_probe,
+	.remove  = __exit_p(gpmi_nfc_remove),
+	.suspend = gpmi_nfc_suspend,
+	.resume  = gpmi_nfc_resume,
+};
+
+/**
+ * gpmi_nfc_init() - Initializes this module.
+ */
+static int __init gpmi_nfc_init(void)
+{
+
+	pr_info("i.MX GPMI NFC\n");
+
+	/* Register this driver with the platform management system. */
+
+	if (platform_driver_register(&gpmi_nfc_driver) != 0) {
+		pr_err("i.MX GPMI NFC driver registration failed\n");
+		return -ENODEV;
+	}
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * gpmi_nfc_exit() - Deactivates this module.
+ */
+static void __exit gpmi_nfc_exit(void)
+{
+	platform_driver_unregister(&gpmi_nfc_driver);
+}
+
+module_init(gpmi_nfc_init);
+module_exit(gpmi_nfc_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("i.MX GPMI NAND Flash Controller Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-mil.c b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-mil.c
new file mode 100644
index 000000000000..34505b8e6546
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-mil.c
@@ -0,0 +1,2599 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "gpmi-nfc.h"
+
+/*
+ * Indicates the driver should register the MTD that represents the entire
+ * medium, thus making it visible.
+ */
+
+static int register_main_mtd;
+module_param(register_main_mtd, int, 0400);
+
+/*
+ * Indicates the driver should attempt to perform DMA directly to/from buffers
+ * passed into this driver. This is true by default. If false, the driver will
+ * *always* copy incoming/outgoing data to/from its own DMA buffers.
+ */
+
+static int map_io_buffers = true;
+module_param(map_io_buffers, int, 0600);
+
+/**
+ * mil_outgoing_buffer_dma_begin() - Begins DMA on an outgoing buffer.
+ *
+ * @this:      Per-device data.
+ * @source:    The source buffer.
+ * @length:    The length of the data in the source buffer.
+ * @alt_virt:  The virtual address of an alternate buffer which is ready to be
+ *             used for DMA.
+ * @alt_phys:  The physical address of an alternate buffer which is ready to be
+ *             used for DMA.
+ * @alt_size:  The size of the alternate buffer.
+ * @use_virt:  A pointer to a variable that will receive the virtual address to
+ *             use.
+ * @use_phys:  A pointer to a variable that will receive the physical address to
+ *             use.
+ */
+static int mil_outgoing_buffer_dma_begin(struct gpmi_nfc_data *this,
+			const void *source, unsigned length,
+			void *alt_virt, dma_addr_t alt_phys, unsigned alt_size,
+			const void **use_virt, dma_addr_t *use_phys)
+{
+	struct device  *dev = this->dev;
+	dma_addr_t     source_phys = ~0;
+
+	/*
+	 * If we can, we want to use the caller's buffer directly for DMA. Check
+	 * if the system will let us map them.
+	 */
+
+	if (map_io_buffers && virt_addr_valid(source))
+		source_phys =
+			dma_map_single(dev,
+				(void *) source, length, DMA_TO_DEVICE);
+
+	if (dma_mapping_error(dev, source_phys)) {
+
+		/*
+		 * If control arrives here, we're not mapping the source buffer.
+		 * Make sure the alternate is large enough.
+		 */
+
+		if (alt_size < length) {
+			dev_err(dev, "Alternate buffer is too small "
+							"for outgoing I/O\n");
+			return -ENOMEM;
+		}
+
+		/*
+		 * Copy the contents of the source buffer into the alternate
+		 * buffer and set up the return values accordingly.
+		 */
+
+		memcpy(alt_virt, source, length);
+
+		*use_virt = alt_virt;
+		*use_phys = alt_phys;
+
+	} else {
+
+		/*
+		 * If control arrives here, we're mapping the source buffer. Set
+		 * up the return values accordingly.
+		 */
+
+		*use_virt = source;
+		*use_phys = source_phys;
+
+	}
+
+	/* If control arrives here, all is well. */
+
+	return 0;
+
+}
+
+/**
+ * mil_outgoing_buffer_dma_end() - Ends DMA on an outgoing buffer.
+ *
+ * @this:       Per-device data.
+ * @source:     The source buffer.
+ * @length:     The length of the data in the source buffer.
+ * @alt_virt:   The virtual address of an alternate buffer which was ready to be
+ *              used for DMA.
+ * @alt_phys:   The physical address of an alternate buffer which was ready to
+ *              be used for DMA.
+ * @alt_size:   The size of the alternate buffer.
+ * @used_virt:  The virtual address that was used.
+ * @used_phys:  The physical address that was used.
+ */
+static void mil_outgoing_buffer_dma_end(struct gpmi_nfc_data *this,
+		const void *source, unsigned length,
+		void *alt_virt, dma_addr_t alt_phys, unsigned alt_size,
+		const void *used_virt, dma_addr_t used_phys)
+{
+	struct device  *dev = this->dev;
+
+	/*
+	 * Check if we used the source buffer, and it's not one of our own DMA
+	 * buffers. If so, we need to unmap it.
+	 */
+
+	if (used_virt == source)
+		dma_unmap_single(dev, used_phys, length, DMA_TO_DEVICE);
+
+}
+
+/**
+ * mil_incoming_buffer_dma_begin() - Begins DMA on an incoming buffer.
+ *
+ * @this:         Per-device data.
+ * @destination:  The destination buffer.
+ * @length:       The length of the data that will arrive.
+ * @alt_virt:     The virtual address of an alternate buffer which is ready
+ *                to be used for DMA.
+ * @alt_phys:     The physical address of an alternate buffer which is ready
+ *                to be used for DMA.
+ * @alt_size:     The size of the alternate buffer.
+ * @use_virt:     A pointer to a variable that will receive the virtual address
+ *                to use.
+ * @use_phys:     A pointer to a variable that will receive the physical address
+ *                to use.
+ */
+static int mil_incoming_buffer_dma_begin(struct gpmi_nfc_data *this,
+			void *destination, unsigned length,
+			void *alt_virt, dma_addr_t alt_phys, unsigned alt_size,
+			void **use_virt, dma_addr_t *use_phys)
+{
+	struct device  *dev = this->dev;
+	dma_addr_t     destination_phys = ~0;
+
+	/*
+	 * If we can, we want to use the caller's buffer directly for DMA. Check
+	 * if the system will let us map them.
+	 */
+
+	if (map_io_buffers && virt_addr_valid(destination))
+		destination_phys =
+			dma_map_single(dev,
+				(void *) destination, length, DMA_FROM_DEVICE);
+
+	if (dma_mapping_error(dev, destination_phys)) {
+
+		/*
+		 * If control arrives here, we're not mapping the destination
+		 * buffer. Make sure the alternate is large enough.
+		 */
+
+		if (alt_size < length) {
+			dev_err(dev, "Alternate buffer is too small "
+							"for incoming I/O\n");
+			return -ENOMEM;
+		}
+
+		/* Set up the return values to use the alternate. */
+
+		*use_virt = alt_virt;
+		*use_phys = alt_phys;
+
+	} else {
+
+		/*
+		 * If control arrives here, we're mapping the destination
+		 * buffer. Set up the return values accordingly.
+		 */
+
+		*use_virt = destination;
+		*use_phys = destination_phys;
+
+	}
+
+	/* If control arrives here, all is well. */
+
+	return 0;
+
+}
+
+/**
+ * mil_incoming_buffer_dma_end() - Ends DMA on an incoming buffer.
+ *
+ * @this:         Per-device data.
+ * @destination:  The destination buffer.
+ * @length:       The length of the data that arrived.
+ * @alt_virt:     The virtual address of an alternate buffer which was ready to
+ *                be used for DMA.
+ * @alt_phys:     The physical address of an alternate buffer which was ready to
+ *                be used for DMA.
+ * @alt_size:     The size of the alternate buffer.
+ * @used_virt:    The virtual address that was used.
+ * @used_phys:    The physical address that was used.
+ */
+static void mil_incoming_buffer_dma_end(struct gpmi_nfc_data *this,
+			void *destination, unsigned length,
+			void *alt_virt, dma_addr_t alt_phys, unsigned alt_size,
+			void *used_virt, dma_addr_t used_phys)
+{
+	struct device  *dev = this->dev;
+
+	/*
+	 * Check if we used the destination buffer, and it's not one of our own
+	 * DMA buffers. If so, we need to unmap it.
+	 */
+
+	if (used_virt == destination)
+		dma_unmap_single(dev, used_phys, length, DMA_FROM_DEVICE);
+	else
+		memcpy(destination, alt_virt, length);
+
+}
+
+/**
+ * mil_cmd_ctrl - MTD Interface cmd_ctrl()
+ *
+ * This is the function that we install in the cmd_ctrl function pointer of the
+ * owning struct nand_chip. The only functions in the reference implementation
+ * that use these functions pointers are cmdfunc and select_chip.
+ *
+ * In this driver, we implement our own select_chip, so this function will only
+ * be called by the reference implementation's cmdfunc. For this reason, we can
+ * ignore the chip enable bit and concentrate only on sending bytes to the
+ * NAND Flash.
+ *
+ * @mtd:   The owning MTD.
+ * @data:  The value to push onto the data signals.
+ * @ctrl:  The values to push onto the control signals.
+ */
+static void mil_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl)
+{
+	struct nand_chip      *nand = mtd->priv;
+	struct gpmi_nfc_data  *this = nand->priv;
+	struct device         *dev  =  this->dev;
+	struct mil            *mil  = &this->mil;
+	struct nfc_hal        *nfc  =  this->nfc;
+	int                   error;
+#if defined(CONFIG_MTD_DEBUG)
+	unsigned int          i;
+	char                  display[MIL_COMMAND_BUFFER_SIZE * 5];
+#endif
+
+	/*
+	 * Every operation begins with a command byte and a series of zero or
+	 * more address bytes. These are distinguished by either the Address
+	 * Latch Enable (ALE) or Command Latch Enable (CLE) signals being
+	 * asserted. When MTD is ready to execute the command, it will deassert
+	 * both latch enables.
+	 *
+	 * Rather than run a separate DMA operation for every single byte, we
+	 * queue them up and run a single DMA operation for the entire series
+	 * of command and data bytes.
+	 */
+
+	if ((ctrl & (NAND_ALE | NAND_CLE))) {
+		if (data != NAND_CMD_NONE)
+			mil->cmd_virt[mil->command_length++] = data;
+		return;
+	}
+
+	/*
+	 * If control arrives here, MTD has deasserted both the ALE and CLE,
+	 * which means it's ready to run an operation. Check if we have any
+	 * bytes to send.
+	 */
+
+	if (!mil->command_length)
+		return;
+
+	/* Hand the command over to the NFC. */
+
+	gpmi_nfc_add_event("mil_cmd_ctrl sending command...", 1);
+
+#if defined(CONFIG_MTD_DEBUG)
+	display[0] = 0;
+	for (i = 0; i < mil->command_length; i++)
+		sprintf(display + strlen(display), " 0x%02x",
+						mil->cmd_virt[i] & 0xff);
+	DEBUG(MTD_DEBUG_LEVEL2, "[gpmi_nfc cmd_ctrl] command: %s\n", display);
+#endif
+
+	error = nfc->send_command(this,
+			mil->current_chip, mil->cmd_phys, mil->command_length);
+
+	if (error) {
+		dev_err(dev, "[%s] Chip: %u, Error %d\n",
+					__func__, mil->current_chip, error);
+		print_hex_dump(KERN_ERR,
+			"    Command Bytes: ", DUMP_PREFIX_NONE, 16, 1,
+					mil->cmd_virt, mil->command_length, 0);
+	}
+
+	gpmi_nfc_add_event("...Finished", -1);
+
+	/* Reset. */
+
+	mil->command_length = 0;
+
+}
+
+/**
+ * mil_dev_ready() - MTD Interface dev_ready()
+ *
+ * @mtd:   A pointer to the owning MTD.
+ */
+static int mil_dev_ready(struct mtd_info *mtd)
+{
+	struct nand_chip      *nand = mtd->priv;
+	struct gpmi_nfc_data  *this = nand->priv;
+	struct nfc_hal        *nfc  = this->nfc;
+	struct mil            *mil  = &this->mil;
+
+	DEBUG(MTD_DEBUG_LEVEL2, "[gpmi_nfc dev_ready]\n");
+
+	gpmi_nfc_add_event("> mil_dev_ready", 1);
+
+	if (nfc->is_ready(this, mil->current_chip)) {
+		gpmi_nfc_add_event("< mil_dev_ready - Returning ready", -1);
+		return !0;
+	} else {
+		gpmi_nfc_add_event("< mil_dev_ready - Returning busy", -1);
+		return 0;
+	}
+
+}
+
+/**
+ * mil_select_chip() - MTD Interface select_chip()
+ *
+ * @mtd:   A pointer to the owning MTD.
+ * @chip:  The chip number to select, or -1 to select no chip.
+ */
+static void mil_select_chip(struct mtd_info *mtd, int chip)
+{
+	struct nand_chip      *nand  = mtd->priv;
+	struct gpmi_nfc_data  *this  = nand->priv;
+	struct mil            *mil   = &this->mil;
+	struct nfc_hal        *nfc   =  this->nfc;
+	struct clk            *clock =  this->resources.clock;
+
+	DEBUG(MTD_DEBUG_LEVEL2, "[gpmi_nfc select_chip] chip: %d\n", chip);
+
+	/* Figure out what kind of transition this is. */
+
+	if ((mil->current_chip < 0) && (chip >= 0)) {
+		gpmi_nfc_start_event_trace("> mil_select_chip");
+		clk_enable(clock);
+		nfc->begin(this);
+		gpmi_nfc_add_event("< mil_select_chip", -1);
+	} else if ((mil->current_chip >= 0) && (chip < 0)) {
+		gpmi_nfc_add_event("> mil_select_chip", 1);
+		clk_disable(clock);
+		nfc->end(this);
+		gpmi_nfc_stop_event_trace("< mil_select_chip");
+	} else {
+		gpmi_nfc_add_event("> mil_select_chip", 1);
+		gpmi_nfc_add_event("< mil_select_chip", -1);
+	}
+
+	mil->current_chip = chip;
+
+}
+
+/**
+ * mil_read_buf() - MTD Interface read_buf().
+ *
+ * @mtd:  A pointer to the owning MTD.
+ * @buf:  The destination buffer.
+ * @len:  The number of bytes to read.
+ */
+static void mil_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
+{
+	struct nand_chip      *nand     = mtd->priv;
+	struct gpmi_nfc_data  *this     = nand->priv;
+	struct device         *dev      =  this->dev;
+	struct nfc_hal        *nfc      =  this->nfc;
+	struct nfc_geometry   *nfc_geo  = &this->nfc_geometry;
+	struct mil            *mil      = &this->mil;
+	void                  *use_virt =  0;
+	dma_addr_t            use_phys  = ~0;
+	int                   error;
+
+	DEBUG(MTD_DEBUG_LEVEL2, "[gpmi_nfc readbuf] len: %d\n", len);
+
+	gpmi_nfc_add_event("> mil_read_buf", 1);
+
+	/* Set up DMA. */
+
+	error = mil_incoming_buffer_dma_begin(this, buf, len,
+					mil->payload_virt, mil->payload_phys,
+					nfc_geo->payload_size_in_bytes,
+					&use_virt, &use_phys);
+
+	if (error) {
+		dev_err(dev, "[%s] Inadequate DMA buffer\n", __func__);
+		goto exit;
+	}
+
+	/* Ask the NFC. */
+
+	nfc->read_data(this, mil->current_chip, use_phys, len);
+
+	/* Finish with DMA. */
+
+	mil_incoming_buffer_dma_end(this, buf, len,
+					mil->payload_virt, mil->payload_phys,
+					nfc_geo->payload_size_in_bytes,
+					use_virt, use_phys);
+
+	/* Return. */
+
+exit:
+
+	gpmi_nfc_add_event("< mil_read_buf", -1);
+
+}
+
+/**
+ * mil_write_buf() - MTD Interface write_buf().
+ *
+ * @mtd:  A pointer to the owning MTD.
+ * @buf:  The source buffer.
+ * @len:  The number of bytes to read.
+ */
+static void mil_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
+{
+	struct nand_chip      *nand     = mtd->priv;
+	struct gpmi_nfc_data  *this     = nand->priv;
+	struct device         *dev      =  this->dev;
+	struct nfc_hal        *nfc      =  this->nfc;
+	struct nfc_geometry   *nfc_geo  = &this->nfc_geometry;
+	struct mil            *mil      = &this->mil;
+	const void            *use_virt =  0;
+	dma_addr_t            use_phys  = ~0;
+	int                   error;
+
+	DEBUG(MTD_DEBUG_LEVEL2, "[gpmi_nfc writebuf] len: %d\n", len);
+
+	gpmi_nfc_add_event("> mil_write_buf", 1);
+
+	/* Set up DMA. */
+
+	error = mil_outgoing_buffer_dma_begin(this, buf, len,
+					mil->payload_virt, mil->payload_phys,
+					nfc_geo->payload_size_in_bytes,
+					&use_virt, &use_phys);
+
+	if (error) {
+		dev_err(dev, "[%s] Inadequate DMA buffer\n", __func__);
+		goto exit;
+	}
+
+	/* Ask the NFC. */
+
+	nfc->send_data(this, mil->current_chip, use_phys, len);
+
+	/* Finish with DMA. */
+
+	mil_outgoing_buffer_dma_end(this, buf, len,
+					mil->payload_virt, mil->payload_phys,
+					nfc_geo->payload_size_in_bytes,
+					use_virt, use_phys);
+
+	/* Return. */
+
+exit:
+
+	gpmi_nfc_add_event("< mil_write_buf", -1);
+
+}
+
+/**
+ * mil_read_byte() - MTD Interface read_byte().
+ *
+ * @mtd:  A pointer to the owning MTD.
+ */
+static uint8_t mil_read_byte(struct mtd_info *mtd)
+{
+	uint8_t  byte;
+
+	DEBUG(MTD_DEBUG_LEVEL2, "[gpmi_nfc read_byte]\n");
+
+	gpmi_nfc_add_event("> mil_read_byte", 1);
+
+	mil_read_buf(mtd, (uint8_t *) &byte, 1);
+
+	gpmi_nfc_add_event("< mil_read_byte", -1);
+
+	DEBUG(MTD_DEBUG_LEVEL2, "[gpmi_nfc read_byte]: 0x%02x\n", byte);
+
+	return byte;
+
+}
+
+/**
+ * mil_handle_block_mark_swapping() - Handles block mark swapping.
+ *
+ * Note that, when this function is called, it doesn't know whether it's
+ * swapping the block mark, or swapping it *back* -- but it doesn't matter
+ * because the the operation is the same.
+ *
+ * @this:       Per-device data.
+ * @payload:    A pointer to the payload buffer.
+ * @auxiliary:  A pointer to the auxiliary buffer.
+ */
+static void mil_handle_block_mark_swapping(struct gpmi_nfc_data *this,
+						void *payload, void *auxiliary)
+{
+	struct nfc_geometry     *nfc_geo = &this->nfc_geometry;
+	struct boot_rom_helper  *rom     =  this->rom;
+	unsigned char           *p;
+	unsigned char           *a;
+	unsigned int            bit;
+	unsigned char           mask;
+	unsigned char           from_data;
+	unsigned char           from_oob;
+
+	/* Check if we're doing block mark swapping. */
+
+	if (!rom->swap_block_mark)
+		return;
+
+	/*
+	 * If control arrives here, we're swapping. Make some convenience
+	 * variables.
+	 */
+
+	bit = nfc_geo->block_mark_bit_offset;
+	p   = ((unsigned char *) payload) + nfc_geo->block_mark_byte_offset;
+	a   = auxiliary;
+
+	/*
+	 * Get the byte from the data area that overlays the block mark. Since
+	 * the ECC engine applies its own view to the bits in the page, the
+	 * physical block mark won't (in general) appear on a byte boundary in
+	 * the data.
+	 */
+
+	from_data = (p[0] >> bit) | (p[1] << (8 - bit));
+
+	/* Get the byte from the OOB. */
+
+	from_oob = a[0];
+
+	/* Swap them. */
+
+	a[0] = from_data;
+
+	mask = (0x1 << bit) - 1;
+	p[0] = (p[0] & mask) | (from_oob << bit);
+
+	mask = ~0 << bit;
+	p[1] = (p[1] & mask) | (from_oob >> (8 - bit));
+
+}
+
+/**
+ * mil_ecc_read_page() - MTD Interface ecc.read_page().
+ *
+ * @mtd:   A pointer to the owning MTD.
+ * @nand:  A pointer to the owning NAND Flash MTD.
+ * @buf:   A pointer to the destination buffer.
+ */
+static int mil_ecc_read_page(struct mtd_info *mtd,
+					struct nand_chip *nand, uint8_t *buf)
+{
+	struct gpmi_nfc_data    *this    = nand->priv;
+	struct device           *dev     =  this->dev;
+	struct nfc_hal          *nfc     =  this->nfc;
+	struct nfc_geometry     *nfc_geo = &this->nfc_geometry;
+	struct mil              *mil     = &this->mil;
+	void                    *payload_virt   =  0;
+	dma_addr_t              payload_phys    = ~0;
+	void                    *auxiliary_virt =  0;
+	dma_addr_t              auxiliary_phys  = ~0;
+	unsigned int            i;
+	unsigned char           *status;
+	unsigned int            failed;
+	unsigned int            corrected;
+	int                     error = 0;
+
+	DEBUG(MTD_DEBUG_LEVEL2, "[gpmi_nfc ecc_read_page]\n");
+
+	gpmi_nfc_add_event("> mil_ecc_read_page", 1);
+
+	/*
+	 * Set up DMA.
+	 *
+	 * Notice that we don't try to use the caller's buffer as the auxiliary.
+	 * We need to do a lot of fiddling to deliver the OOB, so there's no
+	 * point.
+	 */
+
+	error = mil_incoming_buffer_dma_begin(this, buf, mtd->writesize,
+					mil->payload_virt, mil->payload_phys,
+					nfc_geo->payload_size_in_bytes,
+					&payload_virt, &payload_phys);
+
+	if (error) {
+		dev_err(dev, "[%s] Inadequate DMA buffer\n", __func__);
+		error = -ENOMEM;
+		goto exit_payload;
+	}
+
+	auxiliary_virt = mil->auxiliary_virt;
+	auxiliary_phys = mil->auxiliary_phys;
+
+	/* Ask the NFC. */
+
+	error = nfc->read_page(this, mil->current_chip,
+						payload_phys, auxiliary_phys);
+
+	if (error) {
+		dev_err(dev, "[%s] Error in ECC-based read: %d\n",
+							__func__, error);
+		goto exit_nfc;
+	}
+
+	/* Handle block mark swapping. */
+
+	mil_handle_block_mark_swapping(this, payload_virt, auxiliary_virt);
+
+	/* Loop over status bytes, accumulating ECC status. */
+
+	failed    = 0;
+	corrected = 0;
+
+	status = ((unsigned char *) auxiliary_virt) +
+					nfc_geo->auxiliary_status_offset;
+
+	for (i = 0; i < nfc_geo->ecc_chunk_count; i++, status++) {
+
+		if ((*status == 0x00) || (*status == 0xff))
+			continue;
+
+		if (*status == 0xfe) {
+			failed++;
+			continue;
+		}
+
+		corrected += *status;
+
+	}
+
+	/* Propagate ECC status to the owning MTD. */
+
+	mtd->ecc_stats.failed    += failed;
+	mtd->ecc_stats.corrected += corrected;
+
+	/*
+	 * It's time to deliver the OOB bytes. See mil_ecc_read_oob() for
+	 * details about our policy for delivering the OOB.
+	 *
+	 * We fill the caller's buffer with set bits, and then copy the block
+	 * mark to th caller's buffer. Note that, if block mark swapping was
+	 * necessary, it has already been done, so we can rely on the first
+	 * byte of the auxiliary buffer to contain the block mark.
+	 */
+
+	memset(nand->oob_poi, ~0, mtd->oobsize);
+
+	nand->oob_poi[0] = ((uint8_t *) auxiliary_virt)[0];
+
+	/* Return. */
+
+exit_nfc:
+	mil_incoming_buffer_dma_end(this, buf, mtd->writesize,
+					mil->payload_virt, mil->payload_phys,
+					nfc_geo->payload_size_in_bytes,
+					payload_virt, payload_phys);
+exit_payload:
+
+	gpmi_nfc_add_event("< mil_ecc_read_page", -1);
+
+	return error;
+
+}
+
+/**
+ * mil_ecc_write_page() - MTD Interface ecc.write_page().
+ *
+ * @mtd:   A pointer to the owning MTD.
+ * @nand:  A pointer to the owning NAND Flash MTD.
+ * @buf:   A pointer to the source buffer.
+ */
+static void mil_ecc_write_page(struct mtd_info *mtd,
+				struct nand_chip *nand, const uint8_t *buf)
+{
+	struct gpmi_nfc_data    *this    = nand->priv;
+	struct device           *dev     =  this->dev;
+	struct nfc_hal          *nfc     =  this->nfc;
+	struct nfc_geometry     *nfc_geo = &this->nfc_geometry;
+	struct boot_rom_helper  *rom     =  this->rom;
+	struct mil              *mil     = &this->mil;
+	const void              *payload_virt   =  0;
+	dma_addr_t              payload_phys    = ~0;
+	const void              *auxiliary_virt =  0;
+	dma_addr_t              auxiliary_phys  = ~0;
+	int                     error;
+
+	DEBUG(MTD_DEBUG_LEVEL2, "[gpmi_nfc ecc_write_page]\n");
+
+	gpmi_nfc_add_event("> mil_ecc_write_page", 1);
+
+	/* Set up DMA. */
+
+	if (rom->swap_block_mark) {
+
+		/*
+		 * If control arrives here, we're doing block mark swapping.
+		 * Since we can't modify the caller's buffers, we must copy them
+		 * into our own.
+		 */
+
+		memcpy(mil->payload_virt, buf, mtd->writesize);
+		payload_virt = mil->payload_virt;
+		payload_phys = mil->payload_phys;
+
+		memcpy(mil->auxiliary_virt, nand->oob_poi, mtd->oobsize);
+		auxiliary_virt = mil->auxiliary_virt;
+		auxiliary_phys = mil->auxiliary_phys;
+
+		/* Handle block mark swapping. */
+
+		mil_handle_block_mark_swapping(this,
+				(void *) payload_virt, (void *) auxiliary_virt);
+
+	} else {
+
+		/*
+		 * If control arrives here, we're not doing block mark swapping,
+		 * so we can to try and use the caller's buffers.
+		 */
+
+		error = mil_outgoing_buffer_dma_begin(this,
+				buf, mtd->writesize,
+				mil->payload_virt, mil->payload_phys,
+				nfc_geo->payload_size_in_bytes,
+				&payload_virt, &payload_phys);
+
+		if (error) {
+			dev_err(dev, "[%s] Inadequate payload DMA buffer\n",
+								__func__);
+			goto exit_payload;
+		}
+
+		error = mil_outgoing_buffer_dma_begin(this,
+				nand->oob_poi, mtd->oobsize,
+				mil->auxiliary_virt, mil->auxiliary_phys,
+				nfc_geo->auxiliary_size_in_bytes,
+				&auxiliary_virt, &auxiliary_phys);
+
+		if (error) {
+			dev_err(dev, "[%s] Inadequate auxiliary DMA buffer\n",
+								__func__);
+			goto exit_auxiliary;
+		}
+
+	}
+
+	/* Ask the NFC. */
+
+	error = nfc->send_page(this, mil->current_chip,
+						payload_phys, auxiliary_phys);
+
+	if (error)
+		dev_err(dev, "[%s] Error in ECC-based write: %d\n",
+							__func__, error);
+
+	/* Return. */
+
+	if (!rom->swap_block_mark)
+		mil_outgoing_buffer_dma_end(this, nand->oob_poi, mtd->oobsize,
+				mil->auxiliary_virt, mil->auxiliary_phys,
+				nfc_geo->auxiliary_size_in_bytes,
+				auxiliary_virt, auxiliary_phys);
+exit_auxiliary:
+	if (!rom->swap_block_mark)
+		mil_outgoing_buffer_dma_end(this, buf, mtd->writesize,
+				mil->payload_virt, mil->payload_phys,
+				nfc_geo->payload_size_in_bytes,
+				payload_virt, payload_phys);
+exit_payload:
+
+	gpmi_nfc_add_event("< mil_ecc_write_page", -1);
+
+}
+
+/**
+ * mil_hook_read_oob() - Hooked MTD Interface read_oob().
+ *
+ * This function is a veneer that replaces the function originally installed by
+ * the NAND Flash MTD code. See the description of the raw_oob_mode field in
+ * struct mil for more information about this.
+ *
+ * @mtd:   A pointer to the MTD.
+ * @from:  The starting address to read.
+ * @ops:   Describes the operation.
+ */
+static int mil_hook_read_oob(struct mtd_info *mtd,
+					loff_t from, struct mtd_oob_ops *ops)
+{
+	register struct nand_chip  *chip = mtd->priv;
+	struct gpmi_nfc_data       *this = chip->priv;
+	struct mil                 *mil  = &this->mil;
+	int                        ret;
+
+	mil->raw_oob_mode = ops->mode == MTD_OOB_RAW;
+	ret = mil->hooked_read_oob(mtd, from, ops);
+	mil->raw_oob_mode = false;
+	return ret;
+}
+
+/**
+ * mil_hook_write_oob() - Hooked MTD Interface write_oob().
+ *
+ * This function is a veneer that replaces the function originally installed by
+ * the NAND Flash MTD code. See the description of the raw_oob_mode field in
+ * struct mil for more information about this.
+ *
+ * @mtd:   A pointer to the MTD.
+ * @to:    The starting address to write.
+ * @ops:   Describes the operation.
+ */
+static int mil_hook_write_oob(struct mtd_info *mtd,
+					loff_t to, struct mtd_oob_ops *ops)
+{
+	register struct nand_chip  *chip = mtd->priv;
+	struct gpmi_nfc_data       *this = chip->priv;
+	struct mil                 *mil  = &this->mil;
+	int                        ret;
+
+	mil->raw_oob_mode = ops->mode == MTD_OOB_RAW;
+	ret = mil->hooked_write_oob(mtd, to, ops);
+	mil->raw_oob_mode = false;
+	return ret;
+}
+
+/**
+ * mil_hook_block_markbad() - Hooked MTD Interface block_markbad().
+ *
+ * This function is a veneer that replaces the function originally installed by
+ * the NAND Flash MTD code. See the description of the marking_a_bad_block field
+ * in struct mil for more information about this.
+ *
+ * @mtd:  A pointer to the MTD.
+ * @ofs:  Byte address of the block to mark.
+ */
+static int mil_hook_block_markbad(struct mtd_info *mtd, loff_t ofs)
+{
+	register struct nand_chip  *chip = mtd->priv;
+	struct gpmi_nfc_data       *this = chip->priv;
+	struct mil                 *mil  = &this->mil;
+	int                        ret;
+
+	mil->marking_a_bad_block = true;
+	ret = mil->hooked_block_markbad(mtd, ofs);
+	mil->marking_a_bad_block = false;
+	return ret;
+}
+
+/**
+ * mil_ecc_read_oob() - MTD Interface ecc.read_oob().
+ *
+ * There are several places in this driver where we have to handle the OOB and
+ * block marks. This is the function where things are the most complicated, so
+ * this is where we try to explain it all. All the other places refer back to
+ * here.
+ *
+ * These are the rules, in order of decreasing importance:
+ *
+ * 1) Nothing the caller does can be allowed to imperil the block mark, so all
+ *    write operations take measures to protect it.
+ *
+ * 2) In read operations, the first byte of the OOB we return must reflect the
+ *    true state of the block mark, no matter where that block mark appears in
+ *    the physical page.
+ *
+ * 3) ECC-based read operations return an OOB full of set bits (since we never
+ *    allow ECC-based writes to the OOB, it doesn't matter what ECC-based reads
+ *    return).
+ *
+ * 4) "Raw" read operations return a direct view of the physical bytes in the
+ *    page, using the conventional definition of which bytes are data and which
+ *    are OOB. This gives the caller a way to see the actual, physical bytes
+ *    in the page, without the distortions applied by our ECC engine.
+ *
+ *
+ * What we do for this specific read operation depends on two questions:
+ *
+ * 1) Are we doing a "raw" read, or an ECC-based read?
+ *
+ * 2) Are we using block mark swapping or transcription?
+ *
+ * There are four cases, illustrated by the following Karnaugh map:
+ *
+ *                    |           Raw           |         ECC-based       |
+ *       -------------+-------------------------+-------------------------+
+ *                    | Read the conventional   |                         |
+ *                    | OOB at the end of the   |                         |
+ *       Swapping     | page and return it. It  |                         |
+ *                    | contains exactly what   |                         |
+ *                    | we want.                | Read the block mark and |
+ *       -------------+-------------------------+ return it in a buffer   |
+ *                    | Read the conventional   | full of set bits.       |
+ *                    | OOB at the end of the   |                         |
+ *                    | page and also the block |                         |
+ *       Transcribing | mark in the metadata.   |                         |
+ *                    | Copy the block mark     |                         |
+ *                    | into the first byte of  |                         |
+ *                    | the OOB.                |                         |
+ *       -------------+-------------------------+-------------------------+
+ *
+ * Note that we break rule #4 in the Transcribing/Raw case because we're not
+ * giving an accurate view of the actual, physical bytes in the page (we're
+ * overwriting the block mark). That's OK because it's more important to follow
+ * rule #2.
+ *
+ * It turns out that knowing whether we want an "ECC-based" or "raw" read is not
+ * easy. When reading a page, for example, the NAND Flash MTD code calls our
+ * ecc.read_page or ecc.read_page_raw function. Thus, the fact that MTD wants an
+ * ECC-based or raw view of the page is implicit in which function it calls
+ * (there is a similar pair of ECC-based/raw functions for writing).
+ *
+ * Since MTD assumes the OOB is not covered by ECC, there is no pair of
+ * ECC-based/raw functions for reading or or writing the OOB. The fact that the
+ * caller wants an ECC-based or raw view of the page is not propagated down to
+ * this driver.
+ *
+ * Since our OOB *is* covered by ECC, we need this information. So, we hook the
+ * ecc.read_oob and ecc.write_oob function pointers in the owning
+ * struct mtd_info with our own functions. These hook functions set the
+ * raw_oob_mode field so that, when control finally arrives here, we'll know
+ * what to do.
+ *
+ * @mtd:     A pointer to the owning MTD.
+ * @nand:    A pointer to the owning NAND Flash MTD.
+ * @page:    The page number to read.
+ * @sndcmd:  Indicates this function should send a command to the chip before
+ *           reading the out-of-band bytes. This is only false for small page
+ *           chips that support auto-increment.
+ */
+static int mil_ecc_read_oob(struct mtd_info *mtd, struct nand_chip *nand,
+							int page, int sndcmd)
+{
+	struct gpmi_nfc_data      *this     = nand->priv;
+	struct physical_geometry  *physical = &this->physical_geometry;
+	struct mil                *mil      = &this->mil;
+	struct boot_rom_helper    *rom      =  this->rom;
+	int                       block_mark_column;
+
+	DEBUG(MTD_DEBUG_LEVEL2, "[gpmi_nfc ecc_read_oob] "
+		"page: 0x%06x, sndcmd: %s\n", page, sndcmd ? "Yes" : "No");
+
+	gpmi_nfc_add_event("> mil_ecc_read_oob", 1);
+
+	/*
+	 * First, fill in the OOB buffer. If we're doing a raw read, we need to
+	 * get the bytes from the physical page. If we're not doing a raw read,
+	 * we need to fill the buffer with set bits.
+	 */
+
+	if (mil->raw_oob_mode) {
+
+		/*
+		 * If control arrives here, we're doing a "raw" read. Send the
+		 * command to read the conventional OOB.
+		 */
+
+		nand->cmdfunc(mtd, NAND_CMD_READ0,
+				physical->page_data_size_in_bytes, page);
+
+		/* Read out the conventional OOB. */
+
+		nand->read_buf(mtd, nand->oob_poi, mtd->oobsize);
+
+	} else {
+
+		/*
+		 * If control arrives here, we're not doing a "raw" read. Fill
+		 * the OOB buffer with set bits.
+		 */
+
+		memset(nand->oob_poi, ~0, mtd->oobsize);
+
+	}
+
+	/*
+	 * Now, we want to make sure the block mark is correct. In the
+	 * Swapping/Raw case, we already have it. Otherwise, we need to
+	 * explicitly read it.
+	 */
+
+	if (!(rom->swap_block_mark && mil->raw_oob_mode)) {
+
+		/* First, figure out where the block mark is. */
+
+		if (rom->swap_block_mark)
+			block_mark_column = physical->page_data_size_in_bytes;
+		else
+			block_mark_column = 0;
+
+		/* Send the command to read the block mark. */
+
+		nand->cmdfunc(mtd, NAND_CMD_READ0, block_mark_column, page);
+
+		/* Read the block mark into the first byte of the OOB buffer. */
+
+		nand->oob_poi[0] = nand->read_byte(mtd);
+
+	}
+
+	/*
+	 * Return true, indicating that the next call to this function must send
+	 * a command.
+	 */
+
+	gpmi_nfc_add_event("< mil_ecc_read_oob", -1);
+
+	return true;
+
+}
+
+/**
+ * mil_ecc_write_oob() - MTD Interface ecc.write_oob().
+ *
+ * @mtd:   A pointer to the owning MTD.
+ * @nand:  A pointer to the owning NAND Flash MTD.
+ * @page:  The page number to write.
+ */
+static int mil_ecc_write_oob(struct mtd_info *mtd,
+					struct nand_chip *nand, int page)
+{
+	struct gpmi_nfc_data      *this     = nand->priv;
+	struct device             *dev      =  this->dev;
+	struct physical_geometry  *physical = &this->physical_geometry;
+	struct mil                *mil      = &this->mil;
+	struct boot_rom_helper    *rom      =  this->rom;
+	uint8_t                   block_mark = 0;
+	int                       block_mark_column;
+	int                       status;
+	int                       error = 0;
+
+	DEBUG(MTD_DEBUG_LEVEL2,
+			"[gpmi_nfc ecc_write_oob] page: 0x%06x\n", page);
+
+	gpmi_nfc_add_event("> mil_ecc_write_oob", -1);
+
+	/*
+	 * There are fundamental incompatibilities between the i.MX GPMI NFC and
+	 * the NAND Flash MTD model that make it essentially impossible to write
+	 * the out-of-band bytes.
+	 *
+	 * We permit *ONE* exception. If the *intent* of writing the OOB is to
+	 * mark a block bad, we can do that.
+	 */
+
+	if (!mil->marking_a_bad_block) {
+		dev_emerg(dev, "This driver doesn't support writing the OOB\n");
+		WARN_ON(1);
+		error = -EIO;
+		goto exit;
+	}
+
+	/*
+	 * If control arrives here, we're marking a block bad. First, figure out
+	 * where the block mark is.
+	 *
+	 * If we're using swapping, the block mark is in the conventional
+	 * location. Otherwise, we're using transcription, and the block mark
+	 * appears in the first byte of the page.
+	 */
+
+	if (rom->swap_block_mark)
+		block_mark_column = physical->page_data_size_in_bytes;
+	else
+		block_mark_column = 0;
+
+	/* Write the block mark. */
+
+	nand->cmdfunc(mtd, NAND_CMD_SEQIN, block_mark_column, page);
+	nand->write_buf(mtd, &block_mark, 1);
+	nand->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+
+	status = nand->waitfunc(mtd, nand);
+
+	/* Check if it worked. */
+
+	if (status & NAND_STATUS_FAIL)
+		error = -EIO;
+
+	/* Return. */
+
+exit:
+
+	gpmi_nfc_add_event("< mil_ecc_write_oob", -1);
+
+	return error;
+
+}
+
+/**
+ * mil_block_bad - Claims all blocks are good.
+ *
+ * In principle, this function is *only* called when the NAND Flash MTD system
+ * isn't allowed to keep an in-memory bad block table, so it is forced to ask
+ * the driver for bad block information.
+ *
+ * In fact, we permit the NAND Flash MTD system to have an in-memory BBT, so
+ * this function is *only* called when we take it away.
+ *
+ * We take away the in-memory BBT when the user sets the "ignorebad" parameter,
+ * which indicates that all blocks should be reported good.
+ *
+ * Thus, this function is only called when we want *all* blocks to look good,
+ * so it *always* return success.
+ *
+ * @mtd:      Ignored.
+ * @ofs:      Ignored.
+ * @getchip:  Ignored.
+ */
+static int mil_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
+{
+	return 0;
+}
+
+/**
+ * mil_set_physical_geometry() - Set up the physical medium geometry.
+ *
+ * This function retrieves the physical geometry information discovered by
+ * nand_scan(), corrects it, and records it in the per-device data structure.
+ *
+ * @this:  Per-device data.
+ */
+static int mil_set_physical_geometry(struct gpmi_nfc_data  *this)
+{
+	struct mil                *mil      = &this->mil;
+	struct physical_geometry  *physical = &this->physical_geometry;
+	struct nand_chip          *nand     = &mil->nand;
+	struct nand_device_info   *info     = &this->device_info;
+	unsigned int              block_size_in_pages;
+	unsigned int              chip_size_in_blocks;
+	unsigned int              chip_size_in_pages;
+	uint64_t                  medium_size_in_bytes;
+
+	/*
+	 * Record the number of physical chips that MTD found.
+	 */
+
+	physical->chip_count = nand->numchips;
+
+	/*
+	 * We know the total size of a page. We need to break that down into the
+	 * data size and OOB size. The data size is the largest power of two
+	 * that will fit in the given page size. The OOB size is what's left
+	 * over.
+	 */
+
+	physical->page_data_size_in_bytes =
+				1 << (fls(info->page_total_size_in_bytes) - 1);
+
+	physical->page_oob_size_in_bytes =
+				info->page_total_size_in_bytes -
+					physical->page_data_size_in_bytes;
+
+	/*
+	 * Now that we know the page data size, we can multiply this by the
+	 * number of pages in a block to compute the block size.
+	 */
+
+	physical->block_size_in_bytes =
+		physical->page_data_size_in_bytes * info->block_size_in_pages;
+
+	/* Get the chip size. */
+
+	physical->chip_size_in_bytes = info->chip_size_in_bytes;
+
+	/* Compute some interesting facts. */
+
+	block_size_in_pages  =
+			physical->block_size_in_bytes >>
+				(fls(physical->page_data_size_in_bytes) - 1);
+	chip_size_in_pages   =
+			physical->chip_size_in_bytes >>
+				(fls(physical->page_data_size_in_bytes) - 1);
+	chip_size_in_blocks  =
+			physical->chip_size_in_bytes >>
+				(fls(physical->block_size_in_bytes) - 1);
+	medium_size_in_bytes =
+			physical->chip_size_in_bytes * physical->chip_count;
+
+	/* Report. */
+
+	#if defined(DETAILED_INFO)
+
+	pr_info("-----------------\n");
+	pr_info("Physical Geometry\n");
+	pr_info("-----------------\n");
+	pr_info("Chip Count             : %d\n", physical->chip_count);
+	pr_info("Page Data Size in Bytes: %u (0x%x)\n",
+			physical->page_data_size_in_bytes,
+			physical->page_data_size_in_bytes);
+	pr_info("Page OOB Size in Bytes : %u\n",
+			physical->page_oob_size_in_bytes);
+	pr_info("Block Size in Bytes    : %u (0x%x)\n",
+			physical->block_size_in_bytes,
+			physical->block_size_in_bytes);
+	pr_info("Block Size in Pages    : %u (0x%x)\n",
+			block_size_in_pages,
+			block_size_in_pages);
+	pr_info("Chip Size in Bytes     : %llu (0x%llx)\n",
+			physical->chip_size_in_bytes,
+			physical->chip_size_in_bytes);
+	pr_info("Chip Size in Pages     : %u (0x%x)\n",
+			chip_size_in_pages, chip_size_in_pages);
+	pr_info("Chip Size in Blocks    : %u (0x%x)\n",
+			chip_size_in_blocks, chip_size_in_blocks);
+	pr_info("Medium Size in Bytes   : %llu (0x%llx)\n",
+			medium_size_in_bytes, medium_size_in_bytes);
+
+	#endif
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * mil_set_nfc_geometry() - Set up the NFC geometry.
+ *
+ * This function calls the NFC HAL to select an NFC geometry that is compatible
+ * with the medium's physical geometry.
+ *
+ * @this:  Per-device data.
+ */
+static int mil_set_nfc_geometry(struct gpmi_nfc_data  *this)
+{
+	struct nfc_hal       *nfc =  this->nfc;
+#if defined(DETAILED_INFO)
+	struct nfc_geometry  *geo = &this->nfc_geometry;
+#endif
+	/* Set the NFC geometry. */
+
+	if (nfc->set_geometry(this))
+		return !0;
+
+	/* Report. */
+
+	#if defined(DETAILED_INFO)
+
+	pr_info("------------\n");
+	pr_info("NFC Geometry\n");
+	pr_info("------------\n");
+	pr_info("ECC Algorithm          : %s\n", geo->ecc_algorithm);
+	pr_info("ECC Strength           : %u\n", geo->ecc_strength);
+	pr_info("Page Size in Bytes     : %u\n", geo->page_size_in_bytes);
+	pr_info("Metadata Size in Bytes : %u\n", geo->metadata_size_in_bytes);
+	pr_info("ECC Chunk Size in Bytes: %u\n", geo->ecc_chunk_size_in_bytes);
+	pr_info("ECC Chunk Count        : %u\n", geo->ecc_chunk_count);
+	pr_info("Payload Size in Bytes  : %u\n", geo->payload_size_in_bytes);
+	pr_info("Auxiliary Size in Bytes: %u\n", geo->auxiliary_size_in_bytes);
+	pr_info("Auxiliary Status Offset: %u\n", geo->auxiliary_status_offset);
+	pr_info("Block Mark Byte Offset : %u\n", geo->block_mark_byte_offset);
+	pr_info("Block Mark Bit Offset  : %u\n", geo->block_mark_bit_offset);
+
+	#endif
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * mil_set_boot_rom_helper_geometry() - Set up the Boot ROM Helper geometry.
+ *
+ * @this:  Per-device data.
+ */
+static int mil_set_boot_rom_helper_geometry(struct gpmi_nfc_data  *this)
+{
+	struct boot_rom_helper    *rom =  this->rom;
+#if defined(DETAILED_INFO)
+	struct boot_rom_geometry  *geo = &this->rom_geometry;
+#endif
+
+	/* Set the Boot ROM Helper geometry. */
+
+	if (rom->set_geometry(this))
+		return !0;
+
+	/* Report. */
+
+	#if defined(DETAILED_INFO)
+
+	pr_info("-----------------\n");
+	pr_info("Boot ROM Geometry\n");
+	pr_info("-----------------\n");
+	pr_info("Boot Area Count            : %u\n", geo->boot_area_count);
+	pr_info("Boot Area Size in Bytes    : %u (0x%x)\n",
+		geo->boot_area_size_in_bytes, geo->boot_area_size_in_bytes);
+	pr_info("Stride Size in Pages       : %u\n", geo->stride_size_in_pages);
+	pr_info("Search Area Stride Exponent: %u\n",
+					geo->search_area_stride_exponent);
+
+	#endif
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * mil_set_mtd_geometry() - Set up the MTD geometry.
+ *
+ * This function adjusts the owning MTD data structures to match the logical
+ * geometry we've chosen.
+ *
+ * @this:  Per-device data.
+ */
+static int mil_set_mtd_geometry(struct gpmi_nfc_data *this)
+{
+	struct physical_geometry  *physical = &this->physical_geometry;
+	struct mil                *mil      = &this->mil;
+	struct nand_ecclayout     *layout   = &mil->oob_layout;
+	struct nand_chip          *nand     = &mil->nand;
+	struct mtd_info           *mtd      = &mil->mtd;
+
+	/* Configure the struct nand_ecclayout. */
+
+	layout->eccbytes          = 0;
+	layout->oobavail          = physical->page_oob_size_in_bytes;
+	layout->oobfree[0].offset = 0;
+	layout->oobfree[0].length = physical->page_oob_size_in_bytes;
+
+	/* Configure the struct mtd_info. */
+
+	mtd->size        = nand->numchips * physical->chip_size_in_bytes;
+	mtd->erasesize   = physical->block_size_in_bytes;
+	mtd->writesize   = physical->page_data_size_in_bytes;
+	mtd->ecclayout   = layout;
+	mtd->oobavail    = mtd->ecclayout->oobavail;
+	mtd->oobsize     = mtd->ecclayout->oobavail + mtd->ecclayout->eccbytes;
+	mtd->subpage_sft = 0; /* We don't support sub-page writing. */
+
+	/* Configure the struct nand_chip. */
+
+	nand->chipsize         = physical->chip_size_in_bytes;
+	nand->page_shift       = ffs(mtd->writesize) - 1;
+	nand->pagemask         = (nand->chipsize >> nand->page_shift) - 1;
+	nand->subpagesize      = mtd->writesize >> mtd->subpage_sft;
+	nand->phys_erase_shift = ffs(mtd->erasesize) - 1;
+	nand->bbt_erase_shift  = nand->phys_erase_shift;
+	nand->oob_poi          = nand->buffers->databuf + mtd->writesize;
+	nand->ecc.layout       = layout;
+	if (nand->chipsize & 0xffffffff)
+		nand->chip_shift = ffs((unsigned) nand->chipsize) - 1;
+	else
+		nand->chip_shift =
+				ffs((unsigned) (nand->chipsize >> 32)) + 32 - 1;
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * mil_set_geometry() - Set up the medium geometry.
+ *
+ * @this:  Per-device data.
+ */
+static int mil_set_geometry(struct gpmi_nfc_data  *this)
+{
+	struct device        *dev      =  this->dev;
+	struct nfc_geometry  *nfc_geo  = &this->nfc_geometry;
+	struct mil           *mil      = &this->mil;
+
+	/* Set up the various layers of geometry, in this specific order. */
+
+	if (mil_set_physical_geometry(this))
+		return -ENXIO;
+
+	if (mil_set_nfc_geometry(this))
+		return -ENXIO;
+
+	if (mil_set_boot_rom_helper_geometry(this))
+		return -ENXIO;
+
+	if (mil_set_mtd_geometry(this))
+		return -ENXIO;
+
+	/*
+	 * Allocate the page buffer.
+	 *
+	 * Both the payload buffer and the auxiliary buffer must appear on
+	 * 32-bit boundaries. We presume the size of the payload buffer is a
+	 * power of two and is much larger than four, which guarantees the
+	 * auxiliary buffer will appear on a 32-bit boundary.
+	 */
+
+	mil->page_buffer_size = nfc_geo->payload_size_in_bytes +
+					nfc_geo->auxiliary_size_in_bytes;
+
+	mil->page_buffer_virt =
+		dma_alloc_coherent(dev, mil->page_buffer_size,
+					&mil->page_buffer_phys, GFP_DMA);
+
+	if (!mil->page_buffer_virt)
+		return -ENOMEM;
+
+	/* Slice up the page buffer. */
+
+	mil->payload_virt = mil->page_buffer_virt;
+	mil->payload_phys = mil->page_buffer_phys;
+
+	mil->auxiliary_virt = ((char *) mil->payload_virt) +
+						nfc_geo->payload_size_in_bytes;
+	mil->auxiliary_phys = mil->payload_phys +
+						nfc_geo->payload_size_in_bytes;
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * mil_pre_bbt_scan() - Prepare for the BBT scan.
+ *
+ * @this:  Per-device data.
+ */
+static int mil_pre_bbt_scan(struct gpmi_nfc_data  *this)
+{
+	struct device             *dev      =  this->dev;
+	struct physical_geometry  *physical = &this->physical_geometry;
+	struct boot_rom_helper    *rom      =  this->rom;
+	struct mil                *mil      = &this->mil;
+	struct nand_chip          *nand     = &mil->nand;
+	struct mtd_info           *mtd      = &mil->mtd;
+	unsigned int              block_count;
+	unsigned int              block;
+	int                       chip;
+	int                       page;
+	loff_t                    byte;
+	uint8_t                   block_mark;
+	int                       error;
+
+	/*
+	 * Check if we can use block mark swapping, which enables us to leave
+	 * the block marks where they are. If so, we don't need to do anything
+	 * at all.
+	 */
+
+	if (rom->swap_block_mark)
+		return 0;
+
+	/*
+	 * If control arrives here, we can't use block mark swapping, which
+	 * means we're forced to use transcription. First, scan for the
+	 * transcription stamp. If we find it, then we don't have to do
+	 * anything -- the block marks are already transcribed.
+	 */
+
+	if (rom->check_transcription_stamp(this))
+		return 0;
+
+	/*
+	 * If control arrives here, we couldn't find a transcription stamp, so
+	 * so we presume the block marks are in the conventional location.
+	 */
+
+	pr_info("Transcribing bad block marks...\n");
+
+	/* Compute the number of blocks in the entire medium. */
+
+	block_count =
+		physical->chip_size_in_bytes >> nand->phys_erase_shift;
+
+	/*
+	 * Loop over all the blocks in the medium, transcribing block marks as
+	 * we go.
+	 */
+
+	for (block = 0; block < block_count; block++) {
+
+		/*
+		 * Compute the chip, page and byte addresses for this block's
+		 * conventional mark.
+		 */
+
+		chip = block >> (nand->chip_shift - nand->phys_erase_shift);
+		page = block << (nand->phys_erase_shift - nand->page_shift);
+		byte = block <<  nand->phys_erase_shift;
+
+		/* Select the chip. */
+
+		nand->select_chip(mtd, chip);
+
+		/* Send the command to read the conventional block mark. */
+
+		nand->cmdfunc(mtd, NAND_CMD_READ0,
+				physical->page_data_size_in_bytes, page);
+
+		/* Read the conventional block mark. */
+
+		block_mark = nand->read_byte(mtd);
+
+		/*
+		 * Check if the block is marked bad. If so, we need to mark it
+		 * again, but this time the result will be a mark in the
+		 * location where we transcribe block marks.
+		 *
+		 * Notice that we have to explicitly set the marking_a_bad_block
+		 * member before we call through the block_markbad function
+		 * pointer in the owning struct nand_chip. If we could call
+		 * though the block_markbad function pointer in the owning
+		 * struct mtd_info, which we have hooked, then this would be
+		 * taken care of for us. Unfortunately, we can't because that
+		 * higher-level code path will do things like consulting the
+		 * in-memory bad block table -- which doesn't even exist yet!
+		 * So, we have to call at a lower level and handle some details
+		 * ourselves.
+		 */
+
+		if (block_mark != 0xff) {
+			pr_info("Transcribing mark in block %u\n", block);
+			mil->marking_a_bad_block = true;
+			error = nand->block_markbad(mtd, byte);
+			mil->marking_a_bad_block = false;
+			if (error)
+				dev_err(dev, "Failed to mark block bad with "
+							"error %d\n", error);
+		}
+
+		/* Deselect the chip. */
+
+		nand->select_chip(mtd, -1);
+
+	}
+
+	/* Write the stamp that indicates we've transcribed the block marks. */
+
+	rom->write_transcription_stamp(this);
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * mil_scan_bbt() - MTD Interface scan_bbt().
+ *
+ * The HIL calls this function once, when it initializes the NAND Flash MTD.
+ *
+ * Nominally, the purpose of this function is to look for or create the bad
+ * block table. In fact, since the HIL calls this function at the very end of
+ * the initialization process started by nand_scan(), and the HIL doesn't have a
+ * more formal mechanism, everyone "hooks" this function to continue the
+ * initialization process.
+ *
+ * At this point, the physical NAND Flash chips have been identified and
+ * counted, so we know the physical geometry. This enables us to make some
+ * important configuration decisions.
+ *
+ * The return value of this function propogates directly back to this driver's
+ * call to nand_scan(). Anything other than zero will cause this driver to
+ * tear everything down and declare failure.
+ *
+ * @mtd:  A pointer to the owning MTD.
+ */
+static int mil_scan_bbt(struct mtd_info *mtd)
+{
+	struct nand_chip         *nand = mtd->priv;
+	struct gpmi_nfc_data     *this = nand->priv;
+	struct nfc_hal           *nfc  =  this->nfc;
+	struct mil               *mil  = &this->mil;
+	int                      saved_chip_number;
+	uint8_t                  id_bytes[NAND_DEVICE_ID_BYTE_COUNT];
+	struct nand_device_info  *info;
+	struct gpmi_nfc_timing   timing;
+	int                      error;
+
+	DEBUG(MTD_DEBUG_LEVEL2, "[gpmi_nfc scan_bbt] \n");
+
+	/*
+	 * Tell MTD users that the out-of-band area can't be written.
+	 *
+	 * This flag is not part of the standard kernel source tree. It comes
+	 * from a patch that touches both MTD and JFFS2.
+	 *
+	 * The problem is that, without this patch, JFFS2 believes it can write
+	 * the data area and the out-of-band area separately. This is wrong for
+	 * two reasons:
+	 *
+	 *     1)  Our NFC distributes out-of-band bytes throughout the page,
+	 *         intermingled with the data, and covered by the same ECC.
+	 *         Thus, it's not possible to write the out-of-band bytes and
+	 *         data bytes separately.
+	 *
+	 *     2)  Large page (MLC) Flash chips don't support partial page
+	 *         writes. You must write the entire page at a time. Thus, even
+	 *         if our NFC didn't force you to write out-of-band and data
+	 *         bytes together, it would *still* be a bad idea to do
+	 *         otherwise.
+	 */
+
+	mtd->flags &= ~MTD_OOB_WRITEABLE;
+
+	/*
+	 * MTD identified the attached NAND Flash devices, but we have a much
+	 * better database that we want to consult. First, we need to gather all
+	 * the ID bytes from the first chip (MTD only read the first two).
+	 */
+
+	saved_chip_number = mil->current_chip;
+	nand->select_chip(mtd, 0);
+
+	nand->cmdfunc(mtd, NAND_CMD_READID, 0, -1);
+	nand->read_buf(mtd, id_bytes, NAND_DEVICE_ID_BYTE_COUNT);
+
+	nand->select_chip(mtd, saved_chip_number);
+
+	/* Look up this device in our database. */
+
+	info = nand_device_get_info(id_bytes);
+
+	/* Check if we understand this device. */
+
+	if (!info) {
+		pr_err("Unrecognized NAND Flash device.\n");
+		return !0;
+	}
+
+	/* Display the information we discovered. */
+
+	#if defined(DETAILED_INFO)
+	pr_info("-----------------------------\n");
+	pr_info("NAND Flash Device Information\n");
+	pr_info("-----------------------------\n");
+	nand_device_print_info(info);
+	#endif
+
+	/*
+	 * Copy the device info into the per-device data. We can't just keep
+	 * the pointer because that storage is reclaimed after initialization.
+	 */
+
+	this->device_info = *info;
+	this->device_info.description = kstrdup(info->description, GFP_KERNEL);
+
+	/* Set up geometry. */
+
+	error = mil_set_geometry(this);
+
+	if (error)
+		return error;
+
+	/* Set up timing. */
+
+	timing.data_setup_in_ns        = info->data_setup_in_ns;
+	timing.data_hold_in_ns         = info->data_hold_in_ns;
+	timing.address_setup_in_ns     = info->address_setup_in_ns;
+	timing.gpmi_sample_delay_in_ns = info->gpmi_sample_delay_in_ns;
+	timing.tREA_in_ns              = info->tREA_in_ns;
+	timing.tRLOH_in_ns             = info->tRLOH_in_ns;
+	timing.tRHOH_in_ns             = info->tRHOH_in_ns;
+
+	error = nfc->set_timing(this, &timing);
+
+	if (error)
+		return error;
+
+	/* Prepare for the BBT scan. */
+
+	error = mil_pre_bbt_scan(this);
+
+	if (error)
+		return error;
+
+	/* We use the reference implementation for bad block management. */
+
+	error = nand_default_bbt(mtd);
+
+	if (error)
+		return error;
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * mil_boot_areas_init() - Initializes boot areas.
+ *
+ * @this:  Per-device data.
+ */
+static int mil_boot_areas_init(struct gpmi_nfc_data *this)
+{
+	struct device                  *dev      =  this->dev;
+	struct physical_geometry       *physical = &this->physical_geometry;
+	struct boot_rom_geometry       *rom      = &this->rom_geometry;
+	struct mil                     *mil      = &this->mil;
+	struct mtd_info                *mtd      = &mil->mtd;
+	struct nand_chip               *nand     = &mil->nand;
+	int                            mtd_support_is_adequate;
+	unsigned int                   i;
+	struct mtd_partition           partitions[4];
+	struct mtd_info                *search_mtd;
+	struct mtd_info                *chip_0_remainder_mtd = 0;
+	struct mtd_info                *medium_remainder_mtd = 0;
+	struct mtd_info                *concatenate[2];
+
+	/*
+	 * Here we declare the static strings we use to name partitions. We use
+	 * static strings because, as of 2.6.31, the partitioning code *always*
+	 * registers the partition MTDs it creates and leaves behind *no* other
+	 * trace of its work. So, once we've created a partition, we must search
+	 * the master MTD table to find the MTDs we created. Since we're using
+	 * static strings, we can simply search the master table for an MTD with
+	 * a name field pointing to a known address.
+	 */
+
+	static char  *chip_0_boot_name      = "gpmi-nfc-0-boot";
+	static char  *chip_0_remainder_name = "gpmi-nfc-0-remainder";
+	static char  *chip_1_boot_name      = "gpmi-nfc-1-boot";
+	static char  *medium_remainder_name = "gpmi-nfc-remainder";
+	static char  *general_use_name      = "gpmi-nfc-general-use";
+
+	/* Check if we're protecting the boot areas.*/
+
+	if (!rom->boot_area_count) {
+
+		/*
+		 * If control arrives here, we're not protecting the boot areas.
+		 * In this case, there are not boot area partitons, and the main
+		 * MTD is the general use MTD.
+		 */
+
+		mil->general_use_mtd = &mil->mtd;
+
+		return 0;
+
+	}
+
+	/*
+	 * If control arrives here, we're protecting the boot areas. Check if we
+	 * have the MTD support we need.
+	 */
+
+	pr_info("Boot area protection is enabled.\n");
+
+	if (rom->boot_area_count > 1) {
+
+		/*
+		 * If the Boot ROM wants more than one boot area, then we'll
+		 * need to create partitions *and* concatenate them.
+		 */
+
+		#if defined(CONFIG_MTD_PARTITIONS) && defined(CONFIG_MTD_CONCAT)
+			mtd_support_is_adequate = true;
+		#else
+			mtd_support_is_adequate = false;
+		#endif
+
+	} else if (rom->boot_area_count == 1) {
+
+		/*
+		 * If the Boot ROM wants only one boot area, then we only need
+		 * to create partitions -- we don't need to concatenate them.
+		 */
+
+		#if defined(CONFIG_MTD_PARTITIONS)
+			mtd_support_is_adequate = true;
+		#else
+			mtd_support_is_adequate = false;
+		#endif
+
+	} else {
+
+		/*
+		 * If control arrives here, we're protecting the boot area, but
+		 * somehow the boot area count was set to zero. This doesn't
+		 * make any sense.
+		 */
+
+		dev_err(dev, "Internal error: boot area count is "
+						"incorrectly set to zero.");
+		return -ENXIO;
+
+	}
+
+	if (!mtd_support_is_adequate) {
+		dev_err(dev, "Configured MTD support is inadequate to "
+						"protect the boot area(s).");
+		return -ENXIO;
+	}
+
+	/*
+	 * If control arrives here, we're protecting boot areas and we have
+	 * everything we need to do so.
+	 *
+	 * We have special code to handle the case for one boot area.
+	 *
+	 * The code that handles "more than one" boot area actually only handles
+	 * two. We *could* write the general case, but that would take a lot of
+	 * time to both write and test -- and, right now, we don't have a chip
+	 * that cares.
+	 */
+
+	/* Check if a boot area is larger than a single chip. */
+
+	if (rom->boot_area_size_in_bytes > physical->chip_size_in_bytes) {
+		dev_emerg(dev, "Boot area size is larger than a chip");
+		return -ENXIO;
+	}
+
+	if (rom->boot_area_count == 1) {
+
+#if defined(CONFIG_MTD_PARTITIONS)
+
+		/*
+		 * We partition the medium like so:
+		 *
+		 * +------+----------------------------------------------------+
+		 * | Boot |                    General Use                     |
+		 * +------+----------------------------------------------------+
+		 */
+
+		/* Chip 0 Boot */
+
+		partitions[0].name       = chip_0_boot_name;
+		partitions[0].offset     = 0;
+		partitions[0].size       = rom->boot_area_size_in_bytes;
+		partitions[0].mask_flags = 0;
+
+		/* General Use */
+
+		partitions[1].name       = general_use_name;
+		partitions[1].offset     = rom->boot_area_size_in_bytes;
+		partitions[1].size       = MTDPART_SIZ_FULL;
+		partitions[1].mask_flags = 0;
+
+		/* Construct and register the partitions. */
+
+		add_mtd_partitions(mtd, partitions, 2);
+
+		/* Find the general use MTD. */
+
+		for (i = 0; i < MAX_MTD_DEVICES; i++) {
+
+			/* Get the current MTD so we can examine it. */
+
+			search_mtd = get_mtd_device(0, i);
+
+			/* Check if we got nonsense. */
+
+			if ((!search_mtd) || (search_mtd == ERR_PTR(-ENODEV)))
+				continue;
+
+			/* Check if the current MTD is one of our remainders. */
+
+			if (search_mtd->name == general_use_name)
+				mil->general_use_mtd = search_mtd;
+
+			/* Put the MTD back. We only wanted a quick look. */
+
+			put_mtd_device(search_mtd);
+
+		}
+
+		if (!mil->general_use_mtd) {
+			dev_emerg(dev, "Can't find general use MTD");
+			BUG();
+		}
+
+#endif
+
+	} else if (rom->boot_area_count == 2) {
+
+#if defined(CONFIG_MTD_PARTITIONS) && defined(CONFIG_MTD_CONCAT)
+
+		/*
+		 * If control arrives here, there is more than one boot area.
+		 * We partition the medium and concatenate the remainders like
+		 * so:
+		 *
+		 *  --- Chip 0 ---   --- Chip 1 --- ... ------- Chip N -------
+		 * /              \ /                                         \
+		 * +----+----------+----+--------------- ... ------------------+
+		 * |Boot|Remainder |Boot|              Remainder               |
+		 * +----+----------+----+--------------- ... ------------------+
+		 *      |          |   /                                      /
+		 *      |          |  /                                      /
+		 *      |          | /                                      /
+		 *      |          |/                                      /
+		 *      +----------+----------- ... ----------------------+
+		 *      |                   General Use                   |
+		 *      +---------------------- ... ----------------------+
+		 *
+		 * Notice that the results we leave in the master MTD table
+		 * look like this:
+		 *
+		 *    * Chip 0 Boot Area
+		 *    * Chip 1 Boot Area
+		 *    * General Use
+		 *
+		 * Some user space programs expect the boot partitions to
+		 * appear first. This is naive, but let's try not to cause
+		 * any trouble, where we can avoid it.
+		 */
+
+		/* Chip 0 Boot */
+
+		partitions[0].name       = chip_0_boot_name;
+		partitions[0].offset     = 0;
+		partitions[0].size       = rom->boot_area_size_in_bytes;
+		partitions[0].mask_flags = 0;
+
+		/* Chip 1 Boot */
+
+		partitions[1].name       = chip_1_boot_name;
+		partitions[1].offset     = nand->chipsize;
+		partitions[1].size       = rom->boot_area_size_in_bytes;
+		partitions[1].mask_flags = 0;
+
+		/* Chip 0 Remainder */
+
+		partitions[2].name       = chip_0_remainder_name;
+		partitions[2].offset     = rom->boot_area_size_in_bytes;
+		partitions[2].size       = nand->chipsize -
+						rom->boot_area_size_in_bytes;
+		partitions[2].mask_flags = 0;
+
+		/* Medium Remainder */
+
+		partitions[3].name       = medium_remainder_name;
+		partitions[3].offset     = nand->chipsize +
+						rom->boot_area_size_in_bytes;
+		partitions[3].size       = MTDPART_SIZ_FULL;
+		partitions[3].mask_flags = 0;
+
+		/* Construct and register the partitions. */
+
+		add_mtd_partitions(mtd, partitions, 4);
+
+		/* Find the remainder partitions. */
+
+		for (i = 0; i < MAX_MTD_DEVICES; i++) {
+
+			/* Get the current MTD so we can examine it. */
+
+			search_mtd = get_mtd_device(0, i);
+
+			/* Check if we got nonsense. */
+
+			if ((!search_mtd) || (search_mtd == ERR_PTR(-ENODEV)))
+				continue;
+
+			/* Check if the current MTD is one of our remainders. */
+
+			if (search_mtd->name == chip_0_remainder_name)
+				chip_0_remainder_mtd = search_mtd;
+
+			if (search_mtd->name == medium_remainder_name)
+				medium_remainder_mtd = search_mtd;
+
+			/* Put the MTD back. We only wanted a quick look. */
+
+			put_mtd_device(search_mtd);
+
+		}
+
+		if (!chip_0_remainder_mtd || !medium_remainder_mtd) {
+			dev_emerg(dev, "Can't find remainder partitions");
+			BUG();
+		}
+
+		/*
+		 * Unregister the remainder MTDs. Note that we are *not*
+		 * destroying these MTDs -- we're just removing from the
+		 * globally-visible list. There's no need for anyone to see
+		 * these.
+		 */
+
+		del_mtd_device(chip_0_remainder_mtd);
+		del_mtd_device(medium_remainder_mtd);
+
+		/* Concatenate the remainders and register the result. */
+
+		concatenate[0] = chip_0_remainder_mtd;
+		concatenate[1] = medium_remainder_mtd;
+
+		mil->general_use_mtd = mtd_concat_create(concatenate,
+							2, general_use_name);
+
+		add_mtd_device(mil->general_use_mtd);
+
+#endif
+
+	} else {
+		dev_err(dev, "Boot area count greater than two is "
+							"unimplemented.\n");
+		return -ENXIO;
+	}
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * mil_boot_areas_exit() - Shuts down boot areas.
+ *
+ * @this:  Per-device data.
+ */
+static void mil_boot_areas_exit(struct gpmi_nfc_data *this)
+{
+	struct boot_rom_geometry  *rom = &this->rom_geometry;
+	struct mil                *mil = &this->mil;
+	struct mtd_info           *mtd = &mil->mtd;
+
+	/* Check if we're protecting the boot areas.*/
+
+	if (!rom->boot_area_count) {
+
+		/*
+		 * If control arrives here, we're not protecting the boot areas.
+		 * That means we never created any boot area partitions, and the
+		 * general use MTD is just the main MTD.
+		 */
+
+		mil->general_use_mtd = 0;
+
+		return;
+
+	}
+
+	/*
+	 * If control arrives here, we're protecting the boot areas.
+	 *
+	 * Start by checking if there is more than one boot area. If so, then
+	 * we both partitioned the medium and then concatenated some of the
+	 * partitions to form the general use MTD. The first step is to get rid
+	 * of the concatenation.
+	 */
+
+	#if defined(CONFIG_MTD_PARTITIONS) && defined(CONFIG_MTD_CONCAT)
+		if (rom->boot_area_count > 1) {
+				del_mtd_device(mil->general_use_mtd);
+				mtd_concat_destroy(mil->general_use_mtd);
+		}
+	#endif
+
+	/*
+	 * At this point, we're left only with the partitions of the main MTD.
+	 * Delete them.
+	 */
+
+	#if defined(CONFIG_MTD_PARTITIONS)
+		del_mtd_partitions(mtd);
+	#endif
+
+	/* The general use MTD no longer exists. */
+
+	mil->general_use_mtd = 0;
+
+}
+
+/**
+ * mil_construct_ubi_partitions() - Constructs partitions for UBI.
+ *
+ * MTD uses a 64-bit value to express the size of MTDs, but UBI is still using
+ * a 32-bit value. For this reason, UBI can't work on top of an MTD with size
+ * greater than 2GiB. In this function, we examine the general use MTD and, if
+ * it's larger than 2GiB, we construct a set of partitions for that MTD such
+ * that none are too large for UBI to comprehend.
+ *
+ * @this:  Per-device data.
+ */
+static void mil_construct_ubi_partitions(struct gpmi_nfc_data *this)
+{
+#if defined(CONFIG_MTD_PARTITIONS)
+	struct device                  *dev   =  this->dev;
+	struct mil                     *mil   = &this->mil;
+	unsigned int                   partition_count;
+	struct mtd_partition           *partitions;
+	unsigned int                   name_size;
+	char                           *names;
+	unsigned int                   memory_block_size;
+	unsigned int                   i;
+
+	static const char              *name_prefix = "gpmi-nfc-ubi-";
+
+	/*
+	 * If the general use MTD isn't larger than 2GiB, we have nothing to do.
+	 */
+
+	if (mil->general_use_mtd->size <= SZ_2G)
+		return;
+
+	/*
+	 * If control arrives here, the general use MTD is larger than 2GiB. We
+	 * need to split it up into some number of partitions. Find out how many
+	 * 2GiB partitions we'll be creating.
+	 */
+
+	partition_count = mil->general_use_mtd->size >> 31;
+
+	/*
+	 * If the MTD size doesn't evenly divide by 2GiB, we'll need another
+	 * partition to hold the extra.
+	 */
+
+	if (mil->general_use_mtd->size & ((1 << 30) - 1))
+		partition_count++;
+
+	/*
+	 * We're going to allocate a single memory block to contain all the
+	 * partition structures and their names. Calculate how large it must be.
+	 */
+
+	name_size = strlen(name_prefix) + 4;
+
+	memory_block_size = (sizeof(*partitions) + name_size) * partition_count;
+
+	/*
+	 * Attempt to allocate the block.
+	 */
+
+	partitions = kzalloc(memory_block_size, GFP_KERNEL);
+
+	if (!partitions) {
+		dev_err(dev, "Could not allocate memory for UBI partitions.\n");
+		return;
+	}
+
+	names = (char *)(partitions + partition_count);
+
+	/* Loop over partitions, filling in the details. */
+
+	for (i = 0; i < partition_count; i++) {
+
+		partitions[i].name   = names;
+		partitions[i].size   = SZ_2G;
+		partitions[i].offset = MTDPART_OFS_NXTBLK;
+
+		sprintf(names, "%s%u", name_prefix, i);
+		names += name_size;
+
+	}
+
+	/* Adjust the last partition to take up the remainder. */
+
+	partitions[i - 1].size = MTDPART_SIZ_FULL;
+
+	/* Record everything in the device data structure.  */
+
+	mil->partitions           = partitions;
+	mil->partition_count      = partition_count;
+	mil->ubi_partition_memory = partitions;
+
+#endif
+}
+
+/**
+ * mil_partitions_init() - Initializes partitions.
+ *
+ * @this:  Per-device data.
+ */
+static int mil_partitions_init(struct gpmi_nfc_data *this)
+{
+	struct gpmi_nfc_platform_data  *pdata =  this->pdata;
+	struct mil                     *mil   = &this->mil;
+	struct mtd_info                *mtd   = &mil->mtd;
+	int                            error;
+
+	/*
+	 * Set up the boot areas. When this function returns, if there has been
+	 * no error, the boot area partitions (if any) will have been created
+	 * and registered. Also, the general_use_mtd field will point to an MTD
+	 * we can use.
+	 */
+
+	error = mil_boot_areas_init(this);
+
+	if (error)
+		return error;
+
+	/*
+	 * If we've been told to, register the MTD that represents the entire
+	 * medium. Normally, we don't register the main MTD because we only want
+	 * to expose the medium through the boot area partitions and the general
+	 * use partition.
+	 *
+	 * We do this *after* setting up the boot areas because, for historical
+	 * reasons, we like the lowest-numbered MTDs to be the boot areas.
+	 */
+
+	if (register_main_mtd) {
+		pr_info("Registering the main MTD.\n");
+		add_mtd_device(mtd);
+	}
+
+#if defined(CONFIG_MTD_PARTITIONS)
+
+	/*
+	 * If control arrives here, partitioning is available.
+	 *
+	 * There are three possible sets of partitions we might apply, in order
+	 * of decreasing priority:
+	 *
+	 * 1) Partitions dynamically discovered from sources defined by the
+	 *    platform. These can come from, for example, the command line or
+	 *    a partition table.
+	 *
+	 * 2) Partitions attached to the platform data.
+	 *
+	 * 3) Partitions we generate to deal with limitations in UBI.
+	 *
+	 * Recall that the pointer to the general use MTD *may* just point to
+	 * the main MTD.
+	 */
+
+	/*
+	 * First, try to get partition information from the sources defined by
+	 * the platform.
+	 */
+
+	if (pdata->partition_source_types)
+		mil->partition_count =
+			parse_mtd_partitions(mil->general_use_mtd,
+						pdata->partition_source_types,
+						&mil->partitions, 0);
+
+	/*
+	 * Check if we got anything. If not, then accept whatever partitions are
+	 * attached to the platform data.
+	 */
+
+	if ((mil->partition_count <= 0) && (pdata->partitions)) {
+		mil->partition_count = mil->partition_count;
+		mil->partitions      = mil->partitions;
+	}
+
+	/*
+	 * If we still don't have any partitions to apply, then we might want to
+	 * apply some of our own, to account for UBI's limitations.
+	 */
+
+	if (!mil->partition_count)
+		mil_construct_ubi_partitions(this);
+
+	/* If we came up with any partitions, apply them. */
+
+	if (mil->partition_count)
+		add_mtd_partitions(mil->general_use_mtd,
+					mil->partitions,
+					mil->partition_count);
+
+#endif
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * mil_partitions_exit() - Shuts down partitions.
+ *
+ * @this:  Per-device data.
+ */
+static void mil_partitions_exit(struct gpmi_nfc_data *this)
+{
+	struct mil       *mil   = &this->mil;
+	struct mtd_info  *mtd   = &mil->mtd;
+
+	/* Check if we applied any partitions to the general use MTD. */
+
+	#if defined(CONFIG_MTD_PARTITIONS)
+
+		if (mil->partition_count)
+			del_mtd_partitions(mil->general_use_mtd);
+
+		kfree(mil->ubi_partition_memory);
+
+	#endif
+
+	/*
+	 * If we were told to register the MTD that represents the entire
+	 * medium, unregister it now. Note that this does *not* "destroy" the
+	 * MTD - it merely unregisters it. That's important because all our
+	 * other MTDs depend on this one.
+	 */
+
+	if (register_main_mtd)
+		del_mtd_device(mtd);
+
+	/* Tear down the boot areas. */
+
+	mil_boot_areas_exit(this);
+
+}
+
+/**
+ * gpmi_nfc_mil_init() - Initializes the MTD Interface Layer.
+ *
+ * @this:  Per-device data.
+ */
+int gpmi_nfc_mil_init(struct gpmi_nfc_data *this)
+{
+	struct device                  *dev   =  this->dev;
+	struct gpmi_nfc_platform_data  *pdata =  this->pdata;
+	struct mil                     *mil   = &this->mil;
+	struct mtd_info                *mtd   = &mil->mtd;
+	struct nand_chip               *nand  = &mil->nand;
+	static struct nand_ecclayout   fake_ecc_layout;
+	int                            error = 0;
+
+	/* Initialize MIL data. */
+
+	mil->current_chip   = -1;
+	mil->command_length =  0;
+
+	mil->page_buffer_virt =  0;
+	mil->page_buffer_phys = ~0;
+	mil->page_buffer_size =  0;
+
+	/* Initialize the MTD data structures. */
+
+	mtd->priv  = nand;
+	mtd->name  = "gpmi-nfc-main";
+	mtd->owner = THIS_MODULE;
+	nand->priv = this;
+
+	/*
+	 * Signal Control
+	 */
+
+	nand->cmd_ctrl = mil_cmd_ctrl;
+
+	/*
+	 * Chip Control
+	 *
+	 * We rely on the reference implementations of:
+	 *     - cmdfunc
+	 *     - waitfunc
+	 */
+
+	nand->dev_ready   = mil_dev_ready;
+	nand->select_chip = mil_select_chip;
+
+	/*
+	 * Low-level I/O
+	 *
+	 * We don't support a 16-bit NAND Flash bus, so we don't implement
+	 * read_word.
+	 *
+	 * We rely on the reference implentation of verify_buf.
+	 */
+
+	nand->read_byte = mil_read_byte;
+	nand->read_buf  = mil_read_buf;
+	nand->write_buf = mil_write_buf;
+
+	/*
+	 * ECC Control
+	 *
+	 * None of these functions are necessary for us:
+	 *     - ecc.hwctl
+	 *     - ecc.calculate
+	 *     - ecc.correct
+	 */
+
+	/*
+	 * ECC-aware I/O
+	 *
+	 * We rely on the reference implementations of:
+	 *     - ecc.read_page_raw
+	 *     - ecc.write_page_raw
+	 */
+
+	nand->ecc.read_page  = mil_ecc_read_page;
+	nand->ecc.write_page = mil_ecc_write_page;
+
+	/*
+	 * High-level I/O
+	 *
+	 * We rely on the reference implementations of:
+	 *     - write_page
+	 *     - erase_cmd
+	 */
+
+	nand->ecc.read_oob  = mil_ecc_read_oob;
+	nand->ecc.write_oob = mil_ecc_write_oob;
+
+	/*
+	 * Bad Block Management
+	 *
+	 * We rely on the reference implementations of:
+	 *     - block_bad
+	 *     - block_markbad
+	 */
+
+	nand->block_bad = mil_block_bad;
+	nand->scan_bbt  = mil_scan_bbt;
+
+	/*
+	 * Error Recovery Functions
+	 *
+	 * We don't fill in the errstat function pointer because it's optional
+	 * and we don't have a need for it.
+	 */
+
+	/*
+	 * Set up NAND Flash options. Specifically:
+	 *
+	 *     - Disallow partial page writes.
+	 */
+
+	nand->options |= NAND_NO_SUBPAGE_WRITE;
+
+	/*
+	 * Tell the NAND Flash MTD system that we'll be handling ECC with our
+	 * own hardware. It turns out that we still have to fill in the ECC size
+	 * because the MTD code will divide by it -- even though it doesn't
+	 * actually care.
+	 */
+
+	nand->ecc.mode = NAND_ECC_HW;
+	nand->ecc.size = 1;
+
+	/*
+	 * Install a "fake" ECC layout.
+	 *
+	 * We'll be calling nand_scan() to do the final MTD setup. If we haven't
+	 * already chosen an ECC layout, then nand_scan() will choose one based
+	 * on the part geometry it discovers. Unfortunately, it doesn't make
+	 * good choices. It would be best if we could install the correct ECC
+	 * layout now, before we call nand_scan(). We can't do that because we
+	 * don't know the medium geometry yet. Here, we install a "fake" ECC
+	 * layout just to stop nand_scan() from trying to pick one for itself.
+	 * Later, when we know the medium geometry, we'll install the correct
+	 * one.
+	 *
+	 * Of course, this tactic depends critically on the MTD code not doing
+	 * an I/O operation that depends on the ECC layout being sensible. This
+	 * is in fact the case.
+	 */
+
+	memset(&fake_ecc_layout, 0, sizeof(fake_ecc_layout));
+
+	nand->ecc.layout = &fake_ecc_layout;
+
+	/* Allocate a command buffer. */
+
+	mil->cmd_virt =
+		dma_alloc_coherent(dev,
+			MIL_COMMAND_BUFFER_SIZE, &mil->cmd_phys, GFP_DMA);
+
+	if (!mil->cmd_virt)
+		goto exit_cmd_allocation;
+
+	/*
+	 * Ask the NAND Flash system to scan for chips.
+	 *
+	 * This will fill in reference implementations for all the members of
+	 * the MTD structures that we didn't set, and will make the medium fully
+	 * usable.
+	 */
+
+	pr_info("Scanning for NAND Flash chips...\n");
+
+	error = nand_scan(mtd, pdata->max_chip_count);
+
+	if (error) {
+		dev_err(dev, "Chip scan failed\n");
+		goto exit_nand_scan;
+	}
+
+	/*
+	 * Hook some operations at the MTD level. See the descriptions of the
+	 * saved function pointer fields for details about why we hook these.
+	 */
+
+	mil->hooked_read_oob      = mtd->read_oob;
+	mtd->read_oob             = mil_hook_read_oob;
+
+	mil->hooked_write_oob     = mtd->write_oob;
+	mtd->write_oob            = mil_hook_write_oob;
+
+	mil->hooked_block_markbad = mtd->block_markbad;
+	mtd->block_markbad        = mil_hook_block_markbad;
+
+	/* Construct partitions as necessary. */
+
+	error = mil_partitions_init(this);
+
+	if (error)
+		goto exit_partitions;
+
+	/* Return success. */
+
+	return 0;
+
+	/* Control arrives here if something went wrong. */
+
+exit_partitions:
+	nand_release(&mil->mtd);
+exit_nand_scan:
+	dma_free_coherent(dev, MIL_COMMAND_BUFFER_SIZE,
+						mil->cmd_virt, mil->cmd_phys);
+	mil->cmd_virt =  0;
+	mil->cmd_phys = ~0;
+exit_cmd_allocation:
+
+	return error;
+
+}
+
+/**
+ * gpmi_nfc_mil_exit() - Shuts down the MTD Interface Layer.
+ *
+ * @this:  Per-device data.
+ */
+void gpmi_nfc_mil_exit(struct gpmi_nfc_data *this)
+{
+	struct device  *dev = this->dev;
+	struct mil     *mil = &this->mil;
+
+	/* Shut down partitions as necessary. */
+
+	mil_partitions_exit(this);
+
+	/* Get MTD to let go of our MTD. */
+
+	nand_release(&mil->mtd);
+
+	/* Free the page buffer, if it's been allocated. */
+
+	if (mil->page_buffer_virt)
+		dma_free_coherent(dev, mil->page_buffer_size,
+				mil->page_buffer_virt, mil->page_buffer_phys);
+
+	mil->page_buffer_size =  0;
+	mil->page_buffer_virt =  0;
+	mil->page_buffer_phys = ~0;
+
+	/* Free the command buffer, if it's been allocated. */
+
+	if (mil->cmd_virt)
+		dma_free_coherent(dev, MIL_COMMAND_BUFFER_SIZE,
+						mil->cmd_virt, mil->cmd_phys);
+
+	mil->cmd_virt =  0;
+	mil->cmd_phys = ~0;
+
+}
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-rom-common.c b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-rom-common.c
new file mode 100644
index 000000000000..0cd0b39141fd
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-rom-common.c
@@ -0,0 +1,59 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "gpmi-nfc.h"
+
+/**
+ * gpmi_nfc_rom_helper_set_geometry() - Sets geometry for the Boot ROM Helper.
+ *
+ * @this:  Per-device data.
+ */
+int gpmi_nfc_rom_helper_set_geometry(struct gpmi_nfc_data *this)
+{
+	struct boot_rom_geometry  *geometry = &this->rom_geometry;
+
+	/*
+	 * Set the boot block stride size.
+	 *
+	 * In principle, we should be reading this from the OTP bits, since
+	 * that's where the ROM is going to get it. In fact, we don't have any
+	 * way to read the OTP bits, so we go with the default and hope for the
+	 * best.
+	 */
+
+	geometry->stride_size_in_pages = 64;
+
+	/*
+	 * Set the search area stride exponent.
+	 *
+	 * In principle, we should be reading this from the OTP bits, since
+	 * that's where the ROM is going to get it. In fact, we don't have any
+	 * way to read the OTP bits, so we go with the default and hope for the
+	 * best.
+	 */
+
+	geometry->search_area_stride_exponent = 2;
+
+	/* Return success. */
+
+	return 0;
+
+}
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-rom-v0.c b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-rom-v0.c
new file mode 100644
index 000000000000..35321cc25546
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-rom-v0.c
@@ -0,0 +1,297 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "gpmi-nfc.h"
+
+/*
+ * Useful variables for Boot ROM Helper version 0.
+ */
+
+static const char  *fingerprint = "STMP";
+
+/**
+ * set_geometry() - Sets geometry for the Boot ROM Helper.
+ *
+ * @this:  Per-device data.
+ */
+static int set_geometry(struct gpmi_nfc_data *this)
+{
+	struct gpmi_nfc_platform_data  *pdata    =  this->pdata;
+	struct physical_geometry       *physical = &this->physical_geometry;
+	struct boot_rom_geometry       *geometry = &this->rom_geometry;
+	int                             error;
+
+	/* Version-independent geometry. */
+
+	error = gpmi_nfc_rom_helper_set_geometry(this);
+
+	if (error)
+		return error;
+
+	/*
+	 * Check if the platform data indicates we are to protect the boot area.
+	 */
+
+	if (!pdata->boot_area_size_in_bytes) {
+		geometry->boot_area_count         = 0;
+		geometry->boot_area_size_in_bytes = 0;
+		return 0;
+	}
+
+	/*
+	 * If control arrives here, we are supposed to set up partitions to
+	 * protect the boot areas. In this version of the ROM, the number of
+	 * boot areas and their size depends on the number of chips.
+	 */
+
+	if (physical->chip_count == 1) {
+		geometry->boot_area_count = 1;
+		geometry->boot_area_size_in_bytes =
+					pdata->boot_area_size_in_bytes * 2;
+	} else {
+		geometry->boot_area_count = 2;
+		geometry->boot_area_size_in_bytes =
+					pdata->boot_area_size_in_bytes;
+	}
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/**
+ * check_transcription_stamp() - Checks for a transcription stamp.
+ *
+ * Returns 0 if a stamp is not found.
+ *
+ * @this:  Per-device data.
+ */
+static int check_transcription_stamp(struct gpmi_nfc_data *this)
+{
+	struct physical_geometry  *physical = &this->physical_geometry;
+	struct boot_rom_geometry  *rom_geo  = &this->rom_geometry;
+	struct mil                *mil      = &this->mil;
+	struct mtd_info           *mtd      = &mil->mtd;
+	struct nand_chip          *nand     = &mil->nand;
+	unsigned int              search_area_size_in_strides;
+	unsigned int              stride;
+	unsigned int              page;
+	loff_t                    byte;
+	uint8_t                   *buffer = nand->buffers->databuf;
+	int                       saved_chip_number;
+	int                       found_an_ncb_fingerprint = false;
+
+	/* Compute the number of strides in a search area. */
+
+	search_area_size_in_strides = 1 << rom_geo->search_area_stride_exponent;
+
+	/* Select chip 0. */
+
+	saved_chip_number = mil->current_chip;
+	nand->select_chip(mtd, 0);
+
+	/*
+	 * Loop through the first search area, looking for the NCB fingerprint.
+	 */
+
+	pr_info("Scanning for an NCB fingerprint...\n");
+
+	for (stride = 0; stride < search_area_size_in_strides; stride++) {
+
+		/* Compute the page and byte addresses. */
+
+		page = stride * rom_geo->stride_size_in_pages;
+		byte = page   * physical->page_data_size_in_bytes;
+
+		pr_info("  Looking for a fingerprint in page 0x%x\n", page);
+
+		/*
+		 * Read the NCB fingerprint. The fingerprint is four bytes long
+		 * and starts in the 12th byte of the page.
+		 */
+
+		nand->cmdfunc(mtd, NAND_CMD_READ0, 12, page);
+		nand->read_buf(mtd, buffer, strlen(fingerprint));
+
+		/* Look for the fingerprint. */
+
+		if (!memcmp(buffer, fingerprint,
+					strlen(fingerprint))) {
+			found_an_ncb_fingerprint = true;
+			break;
+		}
+
+	}
+
+	/* Deselect chip 0. */
+
+	nand->select_chip(mtd, saved_chip_number);
+
+	/* Return. */
+
+	if (found_an_ncb_fingerprint)
+		pr_info("  Found a fingerprint\n");
+	else
+		pr_info("  No fingerprint found\n");
+
+	return found_an_ncb_fingerprint;
+
+}
+
+/**
+ * write_transcription_stamp() - Writes a transcription stamp.
+ *
+ * @this:  Per-device data.
+ */
+static int write_transcription_stamp(struct gpmi_nfc_data *this)
+{
+	struct device             *dev      =  this->dev;
+	struct physical_geometry  *physical = &this->physical_geometry;
+	struct boot_rom_geometry  *rom_geo  = &this->rom_geometry;
+	struct mil                *mil      = &this->mil;
+	struct mtd_info           *mtd      = &mil->mtd;
+	struct nand_chip          *nand     = &mil->nand;
+	unsigned int              block_size_in_pages;
+	unsigned int              search_area_size_in_strides;
+	unsigned int              search_area_size_in_pages;
+	unsigned int              search_area_size_in_blocks;
+	unsigned int              block;
+	unsigned int              stride;
+	unsigned int              page;
+	loff_t                    byte;
+	uint8_t                   *buffer = nand->buffers->databuf;
+	int                       saved_chip_number;
+	int                       status;
+
+	/* Compute the search area geometry. */
+
+	block_size_in_pages = physical->block_size_in_bytes >>
+				(ffs(physical->page_data_size_in_bytes) - 1);
+
+	search_area_size_in_strides = 1 << rom_geo->search_area_stride_exponent;
+
+	search_area_size_in_pages = search_area_size_in_strides *
+						rom_geo->stride_size_in_pages;
+
+	search_area_size_in_blocks =
+		  (search_area_size_in_pages + (block_size_in_pages - 1)) /
+		/*-------------------------------------------------------*/
+				    block_size_in_pages;
+
+	#if defined(DETAILED_INFO)
+
+	pr_info("--------------------\n");
+	pr_info("Search Area Geometry\n");
+	pr_info("--------------------\n");
+	pr_info("Search Area Size in Blocks : %u", search_area_size_in_blocks);
+	pr_info("Search Area Size in Strides: %u", search_area_size_in_strides);
+	pr_info("Search Area Size in Pages  : %u", search_area_size_in_pages);
+
+	#endif
+
+	/* Select chip 0. */
+
+	saved_chip_number = mil->current_chip;
+	nand->select_chip(mtd, 0);
+
+	/* Loop over blocks in the first search area, erasing them. */
+
+	pr_info("Erasing the search area...\n");
+
+	for (block = 0; block < search_area_size_in_blocks; block++) {
+
+		/* Compute the page address. */
+
+		page = block * block_size_in_pages;
+
+		/* Erase this block. */
+
+		pr_info("  Erasing block 0x%x\n", block);
+
+		nand->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page);
+		nand->cmdfunc(mtd, NAND_CMD_ERASE2, -1, -1);
+
+		/* Wait for the erase to finish. */
+
+		status = nand->waitfunc(mtd, nand);
+
+		if (status & NAND_STATUS_FAIL)
+			dev_err(dev, "[%s] Erase failed.\n", __func__);
+
+	}
+
+	/* Write the NCB fingerprint into the page buffer. */
+
+	memset(buffer, ~0, mtd->writesize);
+	memset(nand->oob_poi, ~0, mtd->oobsize);
+
+	memcpy(buffer + 12, fingerprint, strlen(fingerprint));
+
+	/* Loop through the first search area, writing NCB fingerprints. */
+
+	pr_info("Writing NCB fingerprints...\n");
+
+	for (stride = 0; stride < search_area_size_in_strides; stride++) {
+
+		/* Compute the page and byte addresses. */
+
+		page = stride * rom_geo->stride_size_in_pages;
+		byte = page   * physical->page_data_size_in_bytes;
+
+		/* Write the first page of the current stride. */
+
+		pr_info("  Writing an NCB fingerprint in page 0x%x\n", page);
+
+		nand->cmdfunc(mtd, NAND_CMD_SEQIN, 0x00, page);
+		nand->ecc.write_page_raw(mtd, nand, buffer);
+		nand->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+
+		/* Wait for the write to finish. */
+
+		status = nand->waitfunc(mtd, nand);
+
+		if (status & NAND_STATUS_FAIL)
+			dev_err(dev, "[%s] Write failed.\n", __func__);
+
+	}
+
+	/* Deselect chip 0. */
+
+	nand->select_chip(mtd, saved_chip_number);
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/* This structure represents the Boot ROM Helper for this version. */
+
+struct boot_rom_helper  gpmi_nfc_boot_rom_helper_v0 = {
+	.version                   = 0,
+	.description               = "Single/dual-chip boot area, "
+						"no block mark swapping",
+	.swap_block_mark           = false,
+	.set_geometry              = set_geometry,
+	.check_transcription_stamp = check_transcription_stamp,
+	.write_transcription_stamp = write_transcription_stamp,
+};
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-rom-v1.c b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-rom-v1.c
new file mode 100644
index 000000000000..49cb329ccdd4
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-rom-v1.c
@@ -0,0 +1,82 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "gpmi-nfc.h"
+
+/**
+ * set_geometry() - Sets geometry for the Boot ROM Helper.
+ *
+ * @this:  Per-device data.
+ */
+static int set_geometry(struct gpmi_nfc_data *this)
+{
+	struct gpmi_nfc_platform_data  *pdata    =  this->pdata;
+	struct boot_rom_geometry       *geometry = &this->rom_geometry;
+	int                            error;
+
+	/* Version-independent geometry. */
+
+	error = gpmi_nfc_rom_helper_set_geometry(this);
+
+	if (error)
+		return error;
+
+	/*
+	 * Check if the platform data indicates we are to protect the boot area.
+	 */
+
+	if (!pdata->boot_area_size_in_bytes) {
+		geometry->boot_area_count         = 0;
+		geometry->boot_area_size_in_bytes = 0;
+		return 0;
+	}
+
+	/*
+	 * If control arrives here, we are supposed to set up partitions to
+	 * protect the boot areas. In this version of the ROM, we support only
+	 * one boot area.
+	 */
+
+	geometry->boot_area_count = 1;
+
+	/*
+	 * Use the platform's boot area size.
+	 */
+
+	geometry->boot_area_size_in_bytes = pdata->boot_area_size_in_bytes;
+
+	/* Return success. */
+
+	return 0;
+
+}
+
+/* This structure represents the Boot ROM Helper for this version. */
+
+struct boot_rom_helper  gpmi_nfc_boot_rom_helper_v1 = {
+	.version                   = 1,
+	.description               = "Single-chip boot area, "
+						"block mark swapping supported",
+	.swap_block_mark           = true,
+	.set_geometry              = set_geometry,
+	.check_transcription_stamp = 0,
+	.write_transcription_stamp = 0,
+};
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc.h b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc.h
new file mode 100644
index 000000000000..6f14b73dd93d
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc.h
@@ -0,0 +1,643 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef __DRIVERS_MTD_NAND_GPMI_NFC_H
+#define __DRIVERS_MTD_NAND_GPMI_NFC_H
+
+/* Linux header files. */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/concat.h>
+#include <linux/gpmi-nfc.h>
+#include <asm/sizes.h>
+
+/* Platform header files. */
+
+#include <mach/system.h>
+#include <mach/dmaengine.h>
+#include <mach/device.h>
+#include <mach/clock.h>
+
+/* Driver header files. */
+
+#include "../nand_device_info.h"
+
+/*
+ *------------------------------------------------------------------------------
+ * Fundamental Macros
+ *------------------------------------------------------------------------------
+ */
+
+/* Define this macro to enable detailed information messages. */
+
+#define DETAILED_INFO
+
+/* Define this macro to enable event reporting. */
+
+/*#define EVENT_REPORTING*/
+
+/*
+ *------------------------------------------------------------------------------
+ * Fundamental Data Structures
+ *------------------------------------------------------------------------------
+ */
+
+/**
+ * struct resources - The collection of resources the driver needs.
+ *
+ * @gpmi_regs:         A pointer to the GPMI registers.
+ * @bch_regs:          A pointer to the BCH registers.
+ * @bch_interrupt:     The BCH interrupt number.
+ * @dma_low_channel:   The low  DMA channel.
+ * @dma_high_channel:  The high DMA channel.
+ * @dma_interrupt:     The DMA interrupt number.
+ * @clock:             A pointer to the struct clk for the NFC's clock.
+ */
+
+struct resources {
+	void          *gpmi_regs;
+	void          *bch_regs;
+	unsigned int  bch_interrupt;
+	unsigned int  dma_low_channel;
+	unsigned int  dma_high_channel;
+	unsigned int  dma_interrupt;
+	struct clk    *clock;
+};
+
+/**
+ * struct mil - State for the MTD Interface Layer.
+ *
+ * @nand:                    The NAND Flash MTD data structure that represents
+ *                           the NAND Flash medium.
+ * @mtd:                     The MTD data structure that represents the NAND
+ *                           Flash medium.
+ * @oob_layout:              A structure that describes how bytes are laid out
+ *                           in the OOB.
+ * @general_use_mtd:         A pointer to an MTD we export for general use.
+ *                           This *may* simply be a pointer to the mtd field, if
+ *                           we've been instructed NOT to protect the boot
+ *                           areas.
+ * @partitions:              A pointer to a set of partitions applied to the
+ *                           general use MTD.
+ * @partition_count:         The number of partitions.
+ * @ubi_partition_memory:    If not NULL, a block of memory used to create a set
+ *                           of partitions that help with the problem that UBI
+ *                           can't handle an MTD larger than 2GiB.
+ * @current_chip:            The chip currently selected by the NAND Fash MTD
+ *                           code. A negative value indicates that no chip is
+ *                           selected.
+ * @command_length:          The length of the command that appears in the
+ *                           command buffer (see cmd_virt, below).
+ * @inject_ecc_error:        Indicates the driver should inject a "fake" ECC
+ *                           error into the next read operation that uses ECC.
+ *                           User space programs can set this value through the
+ *                           sysfs node of the same name. If this value is less
+ *                           than zero, the driver will inject an uncorrectable
+ *                           ECC error. If this value is greater than zero, the
+ *                           driver will inject that number of correctable
+ *                           errors, capped by the maximum possible number of
+ *                           errors that could appear in a single read.
+ * @ignore_bad_block_marks:  Indicates we are ignoring bad block marks.
+ * @saved_bbt:               A saved pointer to the in-memory NAND Flash MTD bad
+ *                           block table. See show_device_ignorebad() for more
+ *                           details.
+ * @raw_oob_mode:            Indicates the OOB is to be read/written in "raw"
+ *                           mode. See mil_ecc_read_oob() for details.
+ * @hooked_read_oob:         A pointer to the ecc.read_oob() function we
+ *                           "hooked." See mil_ecc_read_oob() for details.
+ * @hooked_write_oob:        A pointer to the ecc.write_oob() function pointer
+ *                           we "hooked." See mil_ecc_read_oob() for details.
+ * @marking_a_bad_block:     Indicates the caller is marking a bad block. See
+ *                           mil_ecc_write_oob() for details.
+ * @hooked_block_markbad:    A pointer to the block_markbad() function we
+ *                           we "hooked." See mil_ecc_write_oob() for details.
+ * @cmd_virt:                A pointer to a DMA-coherent buffer in which we
+ *                           accumulate command bytes before we give them to the
+ *                           NFC layer. See mil_cmd_ctrl() for more details.
+ * @cmd_phys:                The physical address for the cmd_virt buffer.
+ * @page_buffer_virt:        A pointer to a DMA-coherent buffer we use for
+ *                           reading and writing pages. This buffer includes
+ *                           space for both the payload data and the auxiliary
+ *                           data (including status bytes, but not syndrome
+ *                           bytes).
+ * @page_buffer_phys:        The physical address for the page_buffer_virt
+ *                           buffer.
+ * @page_buffer_size:        The size of the page buffer.
+ * @payload_virt:            A pointer to a location in the page buffer used
+ *                           for payload bytes. The size of this buffer is
+ *                           determined by struct nfc_geometry.
+ * @payload_phys:            The physical address for payload_virt.
+ * @payload_size:            The size of the payload area in the page buffer.
+ * @auxiliary_virt:          A pointer to a location in the page buffer used
+ *                           for auxiliary bytes. The size of this buffer is
+ *                           determined by struct nfc_geometry.
+ * @auxiliary_phys:          The physical address for auxiliary_virt.
+ * @auxiliary_size:          The size of the auxiliary area in the page buffer.
+ */
+
+#define MIL_COMMAND_BUFFER_SIZE (10)
+
+struct mil {
+
+	/* MTD Data Structures */
+
+	struct nand_chip       nand;
+	struct mtd_info        mtd;
+	struct nand_ecclayout  oob_layout;
+
+	/* Partitioning and Boot Area Protection */
+
+	struct mtd_info        *general_use_mtd;
+	struct mtd_partition   *partitions;
+	unsigned int           partition_count;
+	void                   *ubi_partition_memory;
+
+	/* General-use Variables */
+
+	int                    current_chip;
+	unsigned int           command_length;
+	int                    inject_ecc_error;
+	int                    ignore_bad_block_marks;
+	void                   *saved_bbt;
+
+	/* MTD Function Pointer Hooks */
+
+	int                    raw_oob_mode;
+	int                    (*hooked_read_oob)(struct mtd_info *mtd,
+					loff_t from, struct mtd_oob_ops *ops);
+	int                    (*hooked_write_oob)(struct mtd_info *mtd,
+					loff_t to, struct mtd_oob_ops *ops);
+
+	int                    marking_a_bad_block;
+	int                    (*hooked_block_markbad)(struct mtd_info *mtd,
+					loff_t ofs);
+
+	/* DMA Buffers */
+
+	char                   *cmd_virt;
+	dma_addr_t             cmd_phys;
+
+	void                   *page_buffer_virt;
+	dma_addr_t             page_buffer_phys;
+	unsigned int           page_buffer_size;
+
+	void                   *payload_virt;
+	dma_addr_t             payload_phys;
+
+	void                   *auxiliary_virt;
+	dma_addr_t             auxiliary_phys;
+
+};
+
+/**
+ * struct physical_geometry - Physical geometry description.
+ *
+ * This structure describes the physical geometry of the medium.
+ *
+ * @chip_count:                    The number of chips in the medium.
+ * @chip_size_in_bytes:            The size, in bytes, of a single chip
+ *                                 (excluding the out-of-band bytes).
+ * @block_size_in_bytes:           The size, in bytes, of a single block
+ *                                 (excluding the out-of-band bytes).
+ * @page_data_size_in_bytes:       The size, in bytes, of the data area in a
+ *                                 page (excluding the out-of-band bytes).
+ * @page_oob_size_in_bytes:        The size, in bytes, of the out-of-band area
+ *                                 in a page.
+ */
+
+struct physical_geometry {
+	unsigned int  chip_count;
+	uint64_t      chip_size_in_bytes;
+	unsigned int  block_size_in_bytes;
+	unsigned int  page_data_size_in_bytes;
+	unsigned int  page_oob_size_in_bytes;
+};
+
+/**
+ * struct nfc_geometry - NFC geometry description.
+ *
+ * This structure describes the NFC's view of the medium geometry.
+ *
+ * @ecc_algorithm:            The human-readable name of the ECC algorithm
+ *                            (e.g., "Reed-Solomon" or "BCH").
+ * @ecc_strength:             A number that describes the strength of the ECC
+ *                            algorithm.
+ * @page_size_in_bytes:       The size, in bytes, of a physical page, including
+ *                            both data and OOB.
+ * @metadata_size_in_bytes:   The size, in bytes, of the metadata.
+ * @ecc_chunk_size_in_bytes:  The size, in bytes, of a single ECC chunk. Note
+ *                            the first chunk in the page includes both data and
+ *                            metadata, so it's a bit larger than this value.
+ * @ecc_chunk_count:          The number of ECC chunks in the page,
+ * @payload_size_in_bytes:    The size, in bytes, of the payload buffer.
+ * @auxiliary_size_in_bytes:  The size, in bytes, of the auxiliary buffer.
+ * @auxiliary_status_offset:  The offset into the auxiliary buffer at which
+ *                            the ECC status appears.
+ * @block_mark_byte_offset:   The byte offset in the ECC-based page view at
+ *                            which the underlying physical block mark appears.
+ * @block_mark_bit_offset:    The bit offset into the ECC-based page view at
+ *                            which the underlying physical block mark appears.
+ */
+
+struct nfc_geometry {
+	char          *ecc_algorithm;
+	unsigned int  ecc_strength;
+	unsigned int  page_size_in_bytes;
+	unsigned int  metadata_size_in_bytes;
+	unsigned int  ecc_chunk_size_in_bytes;
+	unsigned int  ecc_chunk_count;
+	unsigned int  payload_size_in_bytes;
+	unsigned int  auxiliary_size_in_bytes;
+	unsigned int  auxiliary_status_offset;
+	unsigned int  block_mark_byte_offset;
+	unsigned int  block_mark_bit_offset;
+};
+
+/**
+ * struct boot_rom_geometry - Boot ROM geometry description.
+ *
+ * This structure encapsulates decisions made by the Boot ROM Helper.
+ *
+ * @boot_area_count:             The number of boot areas. The first boot area
+ *                               appears at the beginning of chip 0, the next
+ *                               at the beginning of chip 1, etc.
+ * @boot_area_size_in_bytes:     The size, in bytes, of each boot area.
+ * @stride_size_in_pages:        The size of a boot block stride, in pages.
+ * @search_area_stride_exponent: The logarithm to base 2 of the size of a
+ *                               search area in boot block strides.
+ */
+
+struct boot_rom_geometry {
+	unsigned int  boot_area_count;
+	unsigned int  boot_area_size_in_bytes;
+	unsigned int  stride_size_in_pages;
+	unsigned int  search_area_stride_exponent;
+};
+
+/**
+ * struct gpmi_nfc_data - i.MX NFC per-device data.
+ *
+ * Note that the "device" managed by this driver represents the NAND Flash
+ * controller *and* the NAND Flash medium behind it. Thus, the per-device data
+ * structure has information about the controller, the chips to which it is
+ * connected, and properties of the medium as a whole.
+ *
+ * @dev:                 A pointer to the owning struct device.
+ * @pdev:                A pointer to the owning struct platform_device.
+ * @pdata:               A pointer to the device's platform data.
+ * @resources:           Information about system resources used by this driver.
+ * @device_info:         A structure that contains detailed information about
+ *                       the NAND Flash device.
+ * @physical_geometry:   A description of the medium's physical geometry.
+ * @nfc:                 A pointer to a structure that represents the underlying
+ *                       NFC hardware.
+ * @nfc_geometry:        A description of the medium geometry as viewed by the
+ *                       NFC.
+ * @rom:                 A pointer to a structure that represents the underlying
+ *                       Boot ROM.
+ * @rom_geometry:        A description of the medium geometry as viewed by the
+ *                       Boot ROM.
+ * @mil:                 A collection of information used by the MTD Interface
+ *                       Layer.
+ */
+
+struct gpmi_nfc_data {
+
+	/* System Interface */
+	struct device                  *dev;
+	struct platform_device         *pdev;
+	struct gpmi_nfc_platform_data  *pdata;
+
+	/* Resources */
+	struct resources               resources;
+
+	/* Flash Hardware */
+	struct nand_device_info        device_info;
+	struct physical_geometry       physical_geometry;
+
+	/* NFC HAL */
+	struct nfc_hal                 *nfc;
+	struct nfc_geometry            nfc_geometry;
+
+	/* Boot ROM Helper */
+	struct boot_rom_helper         *rom;
+	struct boot_rom_geometry       rom_geometry;
+
+	/* MTD Interface Layer */
+	struct mil                     mil;
+
+};
+
+/**
+ * struct gpmi_nfc_timing - GPMI NFC timing parameters.
+ *
+ * This structure contains the fundamental timing attributes for the NAND Flash
+ * bus and the GPMI NFC hardware.
+ *
+ * @data_setup_in_ns:         The data setup time, in nanoseconds. Usually the
+ *                            maximum of tDS and tWP. A negative value
+ *                            indicates this characteristic isn't known.
+ * @data_hold_in_ns:          The data hold time, in nanoseconds. Usually the
+ *                            maximum of tDH, tWH and tREH. A negative value
+ *                            indicates this characteristic isn't known.
+ * @address_setup_in_ns:      The address setup time, in nanoseconds. Usually
+ *                            the maximum of tCLS, tCS and tALS. A negative
+ *                            value indicates this characteristic isn't known.
+ * @gpmi_sample_delay_in_ns:  A GPMI-specific timing parameter. A negative value
+ *                            indicates this characteristic isn't known.
+ * @tREA_in_ns:               tREA, in nanoseconds, from the data sheet. A
+ *                            negative value indicates this characteristic isn't
+ *                            known.
+ * @tRLOH_in_ns:              tRLOH, in nanoseconds, from the data sheet. A
+ *                            negative value indicates this characteristic isn't
+ *                            known.
+ * @tRHOH_in_ns:              tRHOH, in nanoseconds, from the data sheet. A
+ *                            negative value indicates this characteristic isn't
+ *                            known.
+ */
+
+struct gpmi_nfc_timing {
+	int8_t  data_setup_in_ns;
+	int8_t  data_hold_in_ns;
+	int8_t  address_setup_in_ns;
+	int8_t  gpmi_sample_delay_in_ns;
+	int8_t  tREA_in_ns;
+	int8_t  tRLOH_in_ns;
+	int8_t  tRHOH_in_ns;
+};
+
+/**
+ * struct gpmi_nfc_hardware_timing - GPMI NFC hardware timing parameters.
+ *
+ * This structure contains timing information expressed in a form directly
+ * usable by the GPMI NFC hardware.
+ *
+ * @data_setup_in_cycles:      The data setup time, in cycles.
+ * @data_hold_in_cycles:       The data hold time, in cycles.
+ * @address_setup_in_cycles:   The address setup time, in cycles.
+ * @use_half_periods:          Indicates the clock is running slowly, so the
+ *                             NFC DLL should use half-periods.
+ * @sample_delay_factor:       The sample delay factor.
+ */
+
+struct gpmi_nfc_hardware_timing {
+	uint8_t  data_setup_in_cycles;
+	uint8_t  data_hold_in_cycles;
+	uint8_t  address_setup_in_cycles;
+	bool     use_half_periods;
+	uint8_t  sample_delay_factor;
+};
+
+/**
+ * struct nfc_hal - GPMI NFC HAL
+ *
+ * This structure embodies an abstract interface to the underlying NFC hardware.
+ *
+ * @version:                     The NFC hardware version.
+ * @description:                 A pointer to a human-readable description of
+ *                               the NFC hardware.
+ * @max_chip_count:              The maximum number of chips the NFC can
+ *                               possibly support (this value is a constant for
+ *                               each NFC version). This may *not* be the actual
+ *                               number of chips connected.
+ * @max_data_setup_cycles:       The maximum number of data setup cycles that
+ *                               can be expressed in the hardware.
+ * @internal_data_setup_in_ns:   The time, in ns, that the NFC hardware requires
+ *                               for data read internal setup. In the Reference
+ *                               Manual, see the chapter "High-Speed NAND
+ *                               Timing" for more details.
+ * @max_sample_delay_factor:     The maximum sample delay factor that can be
+ *                               expressed in the hardware.
+ * @max_dll_clock_period_in_ns:  The maximum period of the GPMI clock that the
+ *                               sample delay DLL hardware can possibly work
+ *                               with (the DLL is unusable with longer periods).
+ *                               If the full-cycle period is greater than HALF
+ *                               this value, the DLL must be configured to use
+ *                               half-periods.
+ * @max_dll_delay_in_ns:         The maximum amount of delay, in ns, that the
+ *                               DLL can implement.
+ * @dma_descriptors:             A pool of DMA descriptors.
+ * @isr_dma_channel:             The DMA channel with which the NFC HAL is
+ *                               working. We record this here so the ISR knows
+ *                               which DMA channel to acknowledge.
+ * @dma_done:                    The completion structure used for DMA
+ *                               interrupts.
+ * @bch_done:                    The completion structure used for BCH
+ *                               interrupts.
+ * @timing:                      The current timing configuration.
+ * @clock_frequency_in_hz:       The clock frequency, in Hz, during the current
+ *                               I/O transaction. If no I/O transaction is in
+ *                               progress, this is the clock frequency during
+ *                               the most recent I/O transaction.
+ * @hardware_timing:             The hardware timing configuration in effect
+ *                               during the current I/O transaction. If no I/O
+ *                               transaction is in progress, this is the
+ *                               hardware timing configuration during the most
+ *                               recent I/O transaction.
+ * @init:                        Initializes the NFC hardware and data
+ *                               structures. This function will be called after
+ *                               everything has been set up for communication
+ *                               with the NFC itself, but before the platform
+ *                               has set up off-chip communication. Thus, this
+ *                               function must not attempt to communicate with
+ *                               the NAND Flash hardware.
+ * @set_geometry:                Configures the NFC hardware and data structures
+ *                               to match the physical NAND Flash geometry.
+ * @set_geometry:                Configures the NFC hardware and data structures
+ *                               to match the physical NAND Flash geometry.
+ * @set_timing:                  Configures the NFC hardware and data structures
+ *                               to match the given NAND Flash bus timing.
+ * @get_timing:                  Returns the the clock frequency, in Hz, and
+ *                               the hardware timing configuration during the
+ *                               current I/O transaction. If no I/O transaction
+ *                               is in progress, this is the timing state during
+ *                               the most recent I/O transaction.
+ * @exit:                        Shuts down the NFC hardware and data
+ *                               structures. This function will be called after
+ *                               the platform has shut down off-chip
+ *                               communication but while communication with the
+ *                               NFC itself still works.
+ * @clear_bch:                   Clears a BCH interrupt (intended to be called
+ *                               by a more general interrupt handler to do
+ *                               device-specific clearing).
+ * @is_ready:                    Returns true if the given chip is ready.
+ * @begin:                       Begins an interaction with the NFC. This
+ *                               function must be called before *any* of the
+ *                               following functions so the NFC can prepare
+ *                               itself.
+ * @end:                         Ends interaction with the NFC. This function
+ *                               should be called to give the NFC a chance to,
+ *                               among other things, enter a lower-power state.
+ * @send_command:                Sends the given buffer of command bytes.
+ * @send_data:                   Sends the given buffer of data bytes.
+ * @read_data:                   Reads data bytes into the given buffer.
+ * @send_page:                   Sends the given given data and OOB bytes,
+ *                               using the ECC engine.
+ * @read_page:                   Reads a page through the ECC engine and
+ *                               delivers the data and OOB bytes to the given
+ *                               buffers.
+ */
+
+#define  NFC_DMA_DESCRIPTOR_COUNT  (4)
+
+struct nfc_hal {
+
+	/* Hardware attributes. */
+
+	const unsigned int      version;
+	const char              *description;
+	const unsigned int      max_chip_count;
+	const unsigned int      max_data_setup_cycles;
+	const unsigned int      internal_data_setup_in_ns;
+	const unsigned int      max_sample_delay_factor;
+	const unsigned int      max_dll_clock_period_in_ns;
+	const unsigned int      max_dll_delay_in_ns;
+
+	/* Working variables. */
+
+	struct mxs_dma_desc     *dma_descriptors[NFC_DMA_DESCRIPTOR_COUNT];
+	int                     isr_dma_channel;
+	struct completion       dma_done;
+	struct completion       bch_done;
+	struct gpmi_nfc_timing  timing;
+	unsigned long           clock_frequency_in_hz;
+
+	/* Configuration functions. */
+
+	int   (*init)        (struct gpmi_nfc_data *);
+	int   (*set_geometry)(struct gpmi_nfc_data *);
+	int   (*set_timing)  (struct gpmi_nfc_data *,
+					const struct gpmi_nfc_timing *);
+	void  (*get_timing)  (struct gpmi_nfc_data *,
+					unsigned long *clock_frequency_in_hz,
+					struct gpmi_nfc_hardware_timing *);
+	void  (*exit)        (struct gpmi_nfc_data *);
+
+	/* Call these functions to begin and end I/O. */
+
+	void  (*begin)       (struct gpmi_nfc_data *);
+	void  (*end)         (struct gpmi_nfc_data *);
+
+	/* Call these I/O functions only between begin() and end(). */
+
+	void  (*clear_bch)   (struct gpmi_nfc_data *);
+	int   (*is_ready)    (struct gpmi_nfc_data *, unsigned chip);
+	int   (*send_command)(struct gpmi_nfc_data *, unsigned chip,
+				dma_addr_t buffer, unsigned length);
+	int   (*send_data)   (struct gpmi_nfc_data *, unsigned chip,
+				dma_addr_t buffer, unsigned length);
+	int   (*read_data)   (struct gpmi_nfc_data *, unsigned chip,
+				dma_addr_t buffer, unsigned length);
+	int   (*send_page)   (struct gpmi_nfc_data *, unsigned chip,
+				dma_addr_t payload, dma_addr_t auxiliary);
+	int   (*read_page)   (struct gpmi_nfc_data *, unsigned chip,
+				dma_addr_t payload, dma_addr_t auxiliary);
+};
+
+/**
+ * struct boot_rom_helper - Boot ROM Helper
+ *
+ * This structure embodies the interface to an object that assists the driver
+ * in making decisions that relate to the Boot ROM.
+ *
+ * @version:                    The Boot ROM version.
+ * @description:                A pointer to a human-readable description of the
+ *                              Boot ROM.
+ * @swap_block_mark:            Indicates that the Boot ROM will swap the block
+ *                              mark with the first byte of the OOB.
+ * @set_geometry:               Configures the Boot ROM geometry.
+ * @check_transcription_stamp:  Checks for a transcription stamp. This pointer
+ *                              is ignored if swap_block_mark is set.
+ * @write_transcription_stamp:  Writes a transcription stamp. This pointer
+ *                              is ignored if swap_block_mark is set.
+ */
+
+struct boot_rom_helper {
+	const unsigned int  version;
+	const char          *description;
+	const int           swap_block_mark;
+	int  (*set_geometry)             (struct gpmi_nfc_data *);
+	int  (*check_transcription_stamp)(struct gpmi_nfc_data *);
+	int  (*write_transcription_stamp)(struct gpmi_nfc_data *);
+};
+
+/*
+ *------------------------------------------------------------------------------
+ * External Symbols
+ *------------------------------------------------------------------------------
+ */
+
+/* Event Reporting */
+
+#if defined(EVENT_REPORTING)
+	extern void gpmi_nfc_start_event_trace(char *description);
+	extern void gpmi_nfc_add_event(char *description, int delta);
+	extern void gpmi_nfc_stop_event_trace(char *description);
+	extern void gpmi_nfc_dump_event_trace(void);
+#else
+	#define gpmi_nfc_start_event_trace(description)  do {} while (0)
+	#define gpmi_nfc_add_event(description, delta)   do {} while (0)
+	#define gpmi_nfc_stop_event_trace(description)   do {} while (0)
+	#define gpmi_nfc_dump_event_trace()              do {} while (0)
+#endif
+
+/* NFC HAL Common Services */
+
+extern irqreturn_t gpmi_nfc_bch_isr(int irq, void *cookie);
+extern irqreturn_t gpmi_nfc_dma_isr(int irq, void *cookie);
+extern int gpmi_nfc_dma_init(struct gpmi_nfc_data *this);
+extern void gpmi_nfc_dma_exit(struct gpmi_nfc_data *this);
+extern int gpmi_nfc_set_geometry(struct gpmi_nfc_data *this);
+extern int gpmi_nfc_dma_go(struct gpmi_nfc_data *this, int  dma_channel);
+extern int gpmi_nfc_compute_hardware_timing(struct gpmi_nfc_data *this,
+					struct gpmi_nfc_hardware_timing *hw);
+
+/* NFC HAL Structures */
+
+extern struct nfc_hal  gpmi_nfc_hal_v0;
+extern struct nfc_hal  gpmi_nfc_hal_v1;
+
+/* Boot ROM Helper Common Services */
+
+extern int gpmi_nfc_rom_helper_set_geometry(struct gpmi_nfc_data *this);
+
+/* Boot ROM Helper Structures */
+
+extern struct boot_rom_helper  gpmi_nfc_boot_rom_helper_v0;
+extern struct boot_rom_helper  gpmi_nfc_boot_rom_helper_v1;
+
+/* MTD Interface Layer */
+
+extern int  gpmi_nfc_mil_init(struct gpmi_nfc_data *this);
+extern void gpmi_nfc_mil_exit(struct gpmi_nfc_data *this);
+
+#endif