colibri_vf61: initial integration

Add initial Colibri VF61 support based off Timesys' implementation for
Freescale's Vybrid Tower System TWR-VF65GS10:
- New machine ID.
- Default UART_A on SCI0.
- ESDHC2 only.
- 8-bit NAND.
- No quad SPI.
- FEC1 only.
- Enabled command line editing.
- PLL5 based RMII clocking (e.g. no external crystal).
- UART_A, UART_B and UART_C I/O muxing.
- Increase the available space for the U-Boot binary to half a megabyte
  by booting from gfxRAM rather than sysRAM0.
- Integrate factory configuration block handling for hardware version,
  MAC address and serial number to be passed to Linux.
- The U-Boot environment is stored in NAND flash.
- Fix long standing boot hang issue introduced by Freescale's Vybrid
  1.1 silicon.
- Proper 256 MB Nanya DDR3 RAM timings.

Tested on early Colibri VF61 prototypes V1.0b and V1.0c using SD card
(mandatory for initial loading) as well as NAND boot.

1 files changed, 637 insertions, 0 deletions

diff --git a/board/toradex/colibri_vf61/colibri_vf61.c b/board/toradex/colibri_vf61/colibri_vf61.c
new file mode 100644
index 0000000000..e9256759a2
--- /dev/null
+++ b/board/toradex/colibri_vf61/colibri_vf61.c
@@ -0,0 +1,637 @@
+/*
+ * Copyright 2013 Toradex, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+#include <common.h> /* do not change order of include file */
+
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/scsc_regs.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/vybrid-pins.h>
+#include <asm/arch/vybrid-regs.h>
+#include <asm/errno.h>
+#include <asm/fec.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <fsl_esdhc.h>
+#include <i2c.h>
+#include <malloc.h>
+#include <mmc.h>
+#include <nand.h>
+#include <usb/ehci-fsl.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_BOARD_LATE_INIT) && (defined(CONFIG_TRDX_CFG_BLOCK) || \
+		defined(CONFIG_REVISION_TAG) || defined(CONFIG_SERIAL_TAG))
+static unsigned char *config_block = NULL;
+#endif
+
+#ifdef CONFIG_FSL_ESDHC
+struct fsl_esdhc_cfg esdhc_cfg[] = {
+	{CONFIG_SYS_ESDHC1_BASE, 1},
+};
+#endif /* CONFIG_FSL_ESDHC */
+
+void ddr_phy_init(void);
+void setup_iomux_ddr(void);
+void setup_iomux_nfc(void);
+void setup_iomux_uart(void);
+
+int board_early_init_f(void)
+{
+	setup_iomux_uart();
+
+#ifdef CONFIG_NAND_FSL_NFC
+	setup_iomux_nfc();
+#endif
+
+	return 0;
+}
+
+int board_init(void)
+{
+	u32 temp;
+	struct vybrid_scsc_reg *scsc = (struct vybrid_scsc_reg *)SCSCM_BASE_ADDR;
+
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+	/*
+	 * Enable external 32K Oscillator
+	 *
+	 * The internal clock experiences significant drift
+         * so we must use the external oscillator in order
+	 * to maintain correct time in the hwclock
+	 */
+	temp = __raw_readl(&scsc->sosc_ctr);
+	temp |= VYBRID_SCSC_SICR_CTR_SOSC_EN;
+	__raw_writel(temp, &scsc->sosc_ctr);
+
+	return 0;
+}
+
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+	char env_str[256];
+
+	int i;
+
+	char *addr_str, *end;
+	unsigned char bi_enetaddr[6]	= {0, 0, 0, 0, 0, 0}; /* Ethernet address */
+	unsigned char *mac_addr;
+	unsigned char mac_addr00[6]	= {0, 0, 0, 0, 0, 0};
+
+	size_t size			= 4096;
+	unsigned char toradex_oui[3]	= { 0x00, 0x14, 0x2d };
+	int valid			= 0;
+
+        int ret;
+
+	/* Allocate RAM area for config block */
+	config_block = malloc(size);
+	if (!config_block) {
+		printf("Not enough malloc space available!\n");
+		return -1;
+	}
+
+	/* Clear it */
+	memset((void *)config_block, 0, size);
+
+	/* Read production parameter config block from NAND */
+	ret = nand_read_skip_bad(&nand_info[0], CONFIG_TRDX_CFG_BLOCK_OFFSET, &size,
+			(unsigned char *)config_block);
+
+	/* Check validity */
+	if ((ret == 0) && (size > 0)) {
+		mac_addr = config_block + 8;
+		if (!(memcmp(mac_addr, toradex_oui, 3))) {
+			valid = 1;
+		}
+	}
+
+	if (!valid) {
+		printf("Missing Colibri config block\n");
+		memset((void *)config_block, 0, size);
+	} else {
+		/* Get MAC address from environment */
+		if ((addr_str = getenv("ethaddr")) != NULL) {
+			for (i = 0; i < 6; i++) {
+				bi_enetaddr[i] = addr_str ? simple_strtoul(addr_str, &end, 16) : 0;
+				if (addr_str) {
+					addr_str = (*end) ? end + 1 : end;
+				}
+			}
+		}
+
+		/* Set Ethernet MAC address from config block if not already set */
+		if (memcmp(mac_addr00, bi_enetaddr, 6) == 0) {
+			sprintf(env_str, "%02x:%02x:%02x:%02x:%02x:%02x",
+				mac_addr[0], mac_addr[1], mac_addr[2],
+				mac_addr[3], mac_addr[4], mac_addr[5]);
+			setenv("ethaddr", env_str);
+#ifndef CONFIG_ENV_IS_NOWHERE
+			saveenv();
+#endif
+		}
+	}
+
+#ifdef CONFIG_MXC_SPI
+	setup_iomux_spi();
+#endif
+
+	return 0;
+}
+#endif /* CONFIG_BOARD_LATE_INIT */
+
+#ifdef CONFIG_FSL_ESDHC
+int board_mmc_getcd(struct mmc *mmc)
+{
+	/*struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;*/
+	int ret;
+
+	__raw_writel(0x005031ef, IOMUXC_PAD_014);	/* clk */
+	__raw_writel(0x005031ef, IOMUXC_PAD_015);	/* cmd */
+	__raw_writel(0x005031ef, IOMUXC_PAD_016);	/* dat0 */
+	__raw_writel(0x005031ef, IOMUXC_PAD_017);	/* dat1 */
+	__raw_writel(0x005031ef, IOMUXC_PAD_018);	/* dat2 */
+	__raw_writel(0x005031ef, IOMUXC_PAD_019);	/* dat3 */
+
+	ret = 1;
+	return ret;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	u32 index = 0;
+	s32 status = 0;
+
+	status |= fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
+	return status;
+}
+#endif /* CONFIG_FSL_ESDHC */
+
+int checkboard(void)
+{
+	puts("Board: Colibri VF61\n");
+
+	return 0;
+}
+
+unsigned long ddr_ctrl_init(void)
+{
+	int dram_size, rows, cols, banks, port;
+
+	__raw_writel(0x00000600, DDR_CR000);	/* DDR3 */
+	__raw_writel(0x00000020, DDR_CR002);	/* TINIT */
+	__raw_writel(0x0000007c, DDR_CR010);	/* reset during power on */
+						/* warm boot - 200ns */
+	__raw_writel(0x00013880, DDR_CR011);	/* 500us - 10ns */
+	__raw_writel(0x0000050c, DDR_CR012);	/* CASLAT_LIN, WRLAT */
+	__raw_writel(0x15040404, DDR_CR013);	/* trc, trrd, tccd
+						   tbst_int_interval */
+	__raw_writel(0x1406040F, DDR_CR014);	/* tfaw, tfp, twtr, tras_min */
+	__raw_writel(0x04040000, DDR_CR016);	/* tmrd, trtp */
+	__raw_writel(0x006DB00C, DDR_CR017);	/* tras_max, tmod */
+	__raw_writel(0x00000403, DDR_CR018);	/* tckesr, tcke */
+
+	__raw_writel(0x01000403, DDR_CR020);	/* ap, writrp */
+	__raw_writel(0x00060101, DDR_CR021);	/* trcd_int, tras_lockout
+						   ccAP */
+	__raw_writel(0x000B0000, DDR_CR022);	/* tdal */
+	__raw_writel(0x03000200, DDR_CR023);	/* bstlen, tmrr, tdll */
+	__raw_writel(0x00000006, DDR_CR024);	/* addr_mirror, reg_dimm
+						   trp_ab */
+	__raw_writel(0x00010000, DDR_CR025);	/* tref_enable, auto_refresh
+						   arefresh */
+	__raw_writel(0x0C280040, DDR_CR026);	/* tref, trfc */
+	__raw_writel(0x00000005, DDR_CR028);	/* tref_interval fixed at 5 */
+	__raw_writel(0x00000003, DDR_CR029);	/* tpdex */
+
+	__raw_writel(0x0000000A, DDR_CR030);	/* txpdll */
+	__raw_writel(0x00440200, DDR_CR031);	/* txsnr, txsr */
+	__raw_writel(0x00010000, DDR_CR033);	/* cke_dly, en_quick_srefresh
+						 * srefresh_exit_no_refresh,
+						 * pwr, srefresh_exit
+						 */
+	__raw_writel(0x00050500, DDR_CR034);	/* cksrx, */
+						/* cksre, lowpwr_ref_en */
+
+	/* Frequency change */
+	__raw_writel(0x00000100, DDR_CR038);	/* freq change... */
+	__raw_writel(0x04001002, DDR_CR039);
+
+	__raw_writel(0x00000001, DDR_CR041);	/* dfi_init_start */
+	__raw_writel(0x00000000, DDR_CR045);	/* wrmd */
+	__raw_writel(0x00000000, DDR_CR046);	/* rdmd */
+	__raw_writel(0x00000000, DDR_CR047);	/* REF_PER_AUTO_TEMPCHK:
+						 *   LPDDR2 set to 2, else 0
+						 */
+
+	/* DRAM device Mode registers */
+	__raw_writel(0x00460420, DDR_CR048);	/* mr0, ddr3 burst of 8 only
+						 * mr1, if freq < 125
+						 * dll_dis = 1, rtt = 0
+						 * if freq > 125, dll_dis = 0
+						 * rtt = 3
+						 */
+	__raw_writel(0x00000000, DDR_CR049);	/* mr2 */
+	__raw_writel(0x00000000, DDR_CR051);	/* mr3 & mrsingle_data_0 */
+	__raw_writel(0x00000000, DDR_CR052);
+
+	__raw_writel(0x00000000, DDR_CR057);	/* ctrl_raw */
+
+	/* ECC */
+	__raw_writel(0x00000000, DDR_CR058);
+
+	/* ZQ stuff */
+	__raw_writel(0x01000200, DDR_CR066);	/* zqcl, zqinit */
+	__raw_writel(0x02000040, DDR_CR067);	/* zqcs */
+	__raw_writel(0x00000200, DDR_CR069);	/* zq_on_sref_exit, zq_req */
+
+	__raw_writel(0x00000040, DDR_CR070);	/* ref_per_zq */
+	__raw_writel(0x00000000, DDR_CR071);	/* zqreset, ddr3 set to 0 */
+	__raw_writel(0x01000000, DDR_CR072);	/* zqcs_rotate, no_zq_init */
+
+	/* DRAM controller misc */
+	__raw_writel(0x0a010200, DDR_CR073);	/* arebit, col_diff, row_diff
+						   bank_diff */
+	__raw_writel(0x0101ffff, DDR_CR074);	/* bank_split, addr_cmp_en
+						   cmd/age cnt */
+	__raw_writel(0x01010101, DDR_CR075);	/* rw same pg, rw same en
+						   pri en, plen */
+	__raw_writel(0x03030101, DDR_CR076);	/* #q_entries_act_dis
+						 * (#cmdqueues
+						 * dis_rw_grp_w_bnk_conflict
+						 * w2r_split_en, cs_same_en */
+	__raw_writel(0x01000101, DDR_CR077);	/* cs_map, inhibit_dram_cmd
+						 * dis_interleave, swen */
+	__raw_writel(0x0000000C, DDR_CR078);	/* qfull, lpddr2_s4, reduc
+						   burst_on_fly */
+	__raw_writel(0x01000000, DDR_CR079);	/* ctrlupd_req_per aref en
+						 * ctrlupd_req
+						 * ctrller busy
+						 * in_ord_accept */
+	/* disable interrupts */
+	__raw_writel(0x1FFFFFFF, DDR_CR082);
+
+	/* ODT */
+	__raw_writel(0x01010000, DDR_CR087);	/* odt: wr_map_cs0
+						 * rd_map_cs0
+						 * port_data_err_id */
+	__raw_writel(0x00040000, DDR_CR088);	/* todtl_2cmd */
+	__raw_writel(0x00000002, DDR_CR089);	/* add_odt stuff */
+
+	__raw_writel(0x00020000, DDR_CR091);
+	__raw_writel(0x00000000, DDR_CR092);	/* tdqsck _min, max */
+
+	__raw_writel(0x00002819, DDR_CR096);	/* wlmrd, wldqsen */
+
+	/* AXI ports */
+	__raw_writel(0x00202000, DDR_CR105);
+	__raw_writel(0x20200000, DDR_CR106);
+	__raw_writel(0x00002020, DDR_CR110);
+	__raw_writel(0x00202000, DDR_CR114);
+	__raw_writel(0x20200000, DDR_CR115);
+
+	__raw_writel(0x00000101, DDR_CR117);	/* FIFO type (0-async, 1-2:1
+						 *	2-1:2, 3- sync, w_pri
+						 * r_pri
+						 */
+	__raw_writel(0x01010000, DDR_CR118);	/* w_pri, rpri, en */
+	__raw_writel(0x00000000, DDR_CR119);	/* fifo_type */
+
+	__raw_writel(0x02020000, DDR_CR120);
+	__raw_writel(0x00000202, DDR_CR121);
+	__raw_writel(0x01010064, DDR_CR122);
+	__raw_writel(0x00010101, DDR_CR123);
+	__raw_writel(0x00000064, DDR_CR124);
+
+	/* TDFI */
+	__raw_writel(0x00000000, DDR_CR125);
+	__raw_writel(0x00000B00, DDR_CR126);	/* PHY rdlat */
+	__raw_writel(0x00000000, DDR_CR127);	/* dram ck dis */
+
+	__raw_writel(0x00000000, DDR_CR131);
+	__raw_writel(0x00000506, DDR_CR132);	/* wrlat, rdlat */
+	__raw_writel(0x00020000, DDR_CR137);
+	__raw_writel(0x04070303, DDR_CR139);
+
+	__raw_writel(0x00000000, DDR_CR136);	/* ??? why later */
+
+	__raw_writel(0x682C0000, DDR_CR154);	/* Bit 19–18 DDR_SEL_PAD_Contr
+						   DDR_SEL = 11 (DDR3 mode) */
+	__raw_writel(0x00000102, DDR_CR155);	/* pad_ibe, _sel */
+	__raw_writel(0x00000006, DDR_CR158);	/* twr */
+	__raw_writel(0x00000006, DDR_CR159);	/* todth */
+
+	ddr_phy_init();
+	__raw_writel(0x1FFFFFFF, DDR_CR082);	/* ??? */
+	__raw_writel(0x00000601, DDR_CR000);	/* LPDDR2 or DDR3, start */
+
+	udelay(200);
+
+	rows = (__raw_readl(DDR_CR001) & 0x1F) -
+	       ((__raw_readl(DDR_CR073) >> 8) & 3);
+	cols = ((__raw_readl(DDR_CR001) >> 8) & 0xF) -
+	       ((__raw_readl(DDR_CR073) >> 16) & 7);
+	banks = 1 << (3 - (__raw_readl(DDR_CR073) & 3));
+	port = ((__raw_readl(DDR_CR078) >> 8) & 1) ? 1 : 2;
+
+	dram_size = (1 << (rows + cols)) * banks * port;
+
+	return dram_size;
+}
+
+void ddr_phy_init(void)
+{
+#define PHY_DQ_TIMING		0x00002213
+#define PHY_DQS_TIMING		0x00002615
+#define PHY_CTRL		0x00200000
+#define PHY_MASTER_CTRL		0x00000020
+#define PHY_SLAVE_CTRL		0x00002000
+
+	/* phy_dq_timing_reg freq set 0 */
+	__raw_writel(PHY_DQ_TIMING, DDR_PHY000);
+	__raw_writel(PHY_DQ_TIMING, DDR_PHY016);
+	__raw_writel(PHY_DQ_TIMING, DDR_PHY032);
+
+	/* phy_dqs_timing_reg freq set 0 */
+	__raw_writel(PHY_DQS_TIMING, DDR_PHY001);
+	__raw_writel(PHY_DQS_TIMING, DDR_PHY017);
+	__raw_writel(PHY_DQS_TIMING, DDR_PHY033);
+
+	/* phy_gate_lpbk_ctrl_reg freq set 0 */
+	__raw_writel(PHY_CTRL, DDR_PHY002);	/* read delay bit21:19 */
+	__raw_writel(PHY_CTRL, DDR_PHY018);	/* phase_detect_sel bit18:16 */
+	__raw_writel(PHY_CTRL, DDR_PHY034);	/* bit lpbk_ctrl bit12 */
+
+	/* phy_dll_master_ctrl_reg freq set 0 */
+	__raw_writel(PHY_MASTER_CTRL, DDR_PHY003);
+	__raw_writel(PHY_MASTER_CTRL, DDR_PHY019);
+	__raw_writel(PHY_MASTER_CTRL, DDR_PHY035);
+
+	/* phy_dll_slave_ctrl_reg freq set 0 */
+	__raw_writel(PHY_SLAVE_CTRL, DDR_PHY004);
+	__raw_writel(PHY_SLAVE_CTRL, DDR_PHY020);
+	__raw_writel(PHY_SLAVE_CTRL, DDR_PHY036);
+
+	__raw_writel(0x00001105, DDR_PHY050);
+}
+
+static int do_mc_reg_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	u32 addr;
+	for (addr = DDR_CR000; addr <= DDR_CR161; addr+=4) {
+		printf("DDR_CR[%d] = 0x%08x\n", (addr-DDR_CR000)/4, __raw_readl(addr));
+	}
+	for (addr = DDR_PHY000; addr <= DDR_PHY052; addr+=4) {
+		printf("DDR_PHY[%d] = 0x%08x\n", (addr-DDR_PHY000)/4, __raw_readl(addr));
+	}
+
+	return 0;
+}
+U_BOOT_CMD(
+        mcdump, 1, 1, do_mc_reg_dump,
+        "Dump MC registers",
+        ""
+);
+
+int dram_init(void)
+{
+	setup_iomux_ddr();
+	gd->ram_size = ddr_ctrl_init();
+
+	return 0;
+}
+
+#if defined(CONFIG_CMD_NET)
+int fecpin_setclear(struct eth_device *dev, int setclear)
+{
+	struct fec_info_s *info = (struct fec_info_s *)dev->priv;
+
+	/* 5.2.1 Software MUX Pad Control Register 0 (IOMUXC_PTA6) */
+	__raw_writel(0x00103191, IOMUXC_PAD_000);	/* RMII_CLKOUT */
+
+	if (setclear) {
+		if (info->iobase == CONFIG_SYS_FEC1_IOBASE) {
+			__raw_writel(0x00103192, IOMUXC_PAD_054);	/* MDC */
+			__raw_writel(0x00103193, IOMUXC_PAD_055);	/* MDIO */
+			__raw_writel(0x00103191, IOMUXC_PAD_056);	/* RxDV */
+			__raw_writel(0x00103191, IOMUXC_PAD_057);	/* RxD1 */
+			__raw_writel(0x00103191, IOMUXC_PAD_058);	/* RxD0 */
+			__raw_writel(0x00103191, IOMUXC_PAD_059);	/* RxER */
+			__raw_writel(0x00103192, IOMUXC_PAD_060);	/* TxD1 */
+			__raw_writel(0x00103192, IOMUXC_PAD_061);	/* TxD0 */
+			__raw_writel(0x00103192, IOMUXC_PAD_062);	/* TxEn */
+		}
+	} else {
+		if (info->iobase == CONFIG_SYS_FEC1_IOBASE) {
+			__raw_writel(0x00003192, IOMUXC_PAD_054);	/* MDC */
+			__raw_writel(0x00003193, IOMUXC_PAD_055);	/* MDIO */
+			__raw_writel(0x00003191, IOMUXC_PAD_056);	/* RxDV */
+			__raw_writel(0x00003191, IOMUXC_PAD_057);	/* RxD1 */
+			__raw_writel(0x00003191, IOMUXC_PAD_058);	/* RxD0 */
+			__raw_writel(0x00003191, IOMUXC_PAD_059);	/* RxER */
+			__raw_writel(0x00003192, IOMUXC_PAD_060);	/* TxD1 */
+			__raw_writel(0x00003192, IOMUXC_PAD_061);	/* TxD0 */
+			__raw_writel(0x00003192, IOMUXC_PAD_062);	/* TxEn */
+		}
+	}
+
+	return 0;
+}
+#endif /* CONFIG_CMD_NET */
+
+#ifdef CONFIG_REVISION_TAG
+u32 get_board_rev(void)
+{
+#ifdef CONFIG_BOARD_LATE_INIT
+	int i;
+	unsigned short major = 0, minor = 0, release = 0;
+	size_t size = 4096;
+
+	if(config_block == NULL) {
+		return 0;
+	}
+
+	/* Parse revision information in config block */
+	for (i = 0; i < (size - 8); i++) {
+		if (config_block[i] == 0x02 && config_block[i+1] == 0x40 &&
+				config_block[i+2] == 0x08) {
+			break;
+		}
+	}
+
+	major = (config_block[i+3] << 8) | config_block[i+4];
+	minor = (config_block[i+5] << 8) | config_block[i+6];
+	release = (config_block[i+7] << 8) | config_block[i+8];
+
+	/* Check validity */
+	if (major)
+		return ((major & 0xff) << 8) | ((minor & 0xf) << 4) | ((release & 0xf) + 0xa);
+	else
+		return 0;
+#else
+	return 0;
+#endif /* CONFIG_BOARD_LATE_INIT */
+}
+#endif /* CONFIG_REVISION_TAG */
+
+#ifdef CONFIG_SERIAL_TAG
+void get_board_serial(struct tag_serialnr *serialnr)
+{
+#ifdef CONFIG_BOARD_LATE_INIT
+	int array[8];
+	int i;
+	unsigned int serial		= 0;
+	unsigned int serial_offset	= 11;
+
+	if(config_block == NULL) {
+		serialnr->low = 0;
+		serialnr->high = 0;
+		return;
+	}
+
+	/* Get MAC address from config block */
+	memcpy(&serial, config_block + serial_offset, 3);
+	serial = ntohl(serial);
+	serial >>= 8;
+
+	/* Check validity */
+	if (serial) {
+		/* Convert to Linux serial number format (hexadecimal coded decimal) */
+		i = 7;
+		while (serial) {
+			array[i--] = serial % 10;
+			serial /= 10;
+		}
+		while (i >= 0) {
+			array[i--] = 0;
+		}
+		serial = array[0];
+		for (i = 1; i < 8; i++) {
+			serial *= 16;
+			serial += array[i];
+		}
+	}
+
+	serialnr->low = serial;
+#else
+	serialnr->low = 0;
+#endif /* CONFIG_BOARD_LATE_INIT */
+	serialnr->high = 0;
+}
+#endif /* CONFIG_SERIAL_TAG */
+
+void setup_iomux_ddr(void)
+{
+#define DDR_IOMUX	0x00000140
+#define DDR_IOMUX1	0x00010140 /* Differential input mode */
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_RESET);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A15);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A14);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A13);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A12);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A11);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A10);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A9);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A8);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A7);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A6);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A5);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A4);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A3);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A2);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A1);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_A0);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_BA2);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_BA1);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_BA0);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_CAS);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_CKE);
+	__raw_writel(DDR_IOMUX1, IOMUXC_DDR_CLK);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_CS);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D15);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D14);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D13);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D12);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D11);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D10);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D9);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D8);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D7);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D6);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D5);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D4);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D3);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D2);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D1);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_D0);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_DQM1);	/* UDM */
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_DQM0);	/* LDM */
+	__raw_writel(DDR_IOMUX1, IOMUXC_DDR_DQS1);	/* UDQS */
+	__raw_writel(DDR_IOMUX1, IOMUXC_DDR_DQS0);	/* LDQS */
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_RAS);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_WE);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_ODT0);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_ODT1);
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_DDRBYTE1);	/* ? */
+	__raw_writel(DDR_IOMUX, IOMUXC_DDR_DDRBYTE0);	/* ? */
+}
+
+#ifdef CONFIG_NAND_FSL_NFC
+void setup_iomux_nfc(void)
+{
+	__raw_writel(0x002038df, IOMUXC_PAD_071);
+	__raw_writel(0x002038df, IOMUXC_PAD_072);
+	__raw_writel(0x002038df, IOMUXC_PAD_073);
+	__raw_writel(0x002038df, IOMUXC_PAD_074);
+	__raw_writel(0x002038df, IOMUXC_PAD_075);
+	__raw_writel(0x002038df, IOMUXC_PAD_076);
+	__raw_writel(0x002038df, IOMUXC_PAD_077);
+	__raw_writel(0x002038df, IOMUXC_PAD_078);
+	__raw_writel(0x005038d2, IOMUXC_PAD_094);
+	__raw_writel(0x005038d2, IOMUXC_PAD_095);
+	__raw_writel(0x006038d2, IOMUXC_PAD_097);
+	__raw_writel(0x005038dd, IOMUXC_PAD_099);
+	__raw_writel(0x006038d2, IOMUXC_PAD_100);
+	__raw_writel(0x006038d2, IOMUXC_PAD_101);
+}
+#endif /* CONFIG_NAND_FSL_NFC */
+
+#ifdef CONFIG_MXC_SPI
+void setup_iomux_spi(void)
+{
+}
+#endif /* CONFIG_MXC_SPI */
+
+void setup_iomux_uart(void)
+{
+	__raw_writel(0x002011a2, IOMUXC_PAD_026);	/* UART_C_TXD: SCI1_TX */
+	__raw_writel(0x002011a1, IOMUXC_PAD_027);	/* UART_C_RXD: SCI1_RX */
+	__raw_writel(0x001011a2, IOMUXC_PAD_032);	/* UART_A_TXD: SCI0_TX */
+	__raw_writel(0x001011a1, IOMUXC_PAD_033);	/* UART_A_RXD: SCI0_RX */
+	__raw_writel(0x001011a2, IOMUXC_PAD_079);	/* UART_B_TXD: SCI2_TX */
+	__raw_writel(0x001011a1, IOMUXC_PAD_080);	/* UART_B_RXD: SCI2_RX */
+}