Add support for AT91SAM9G20-EK Board2008.10-at91-200812151807

This adds support for the AT91SAM9G20-EK board in the mainline U-Boot.

Signed-off-by: Justin Waters <justin.waters@timesys.com>

10 files changed, 710 insertions, 3 deletions

diff --git a/Makefile b/Makefile
index 953ffba1a56..c682ccae9fa 100644
--- a/Makefile
+++ b/Makefile
@@ -2524,6 +2524,9 @@ at91cap9adk_config	:	unconfig
 at91sam9260ek_config	:	unconfig
 	@$(MKCONFIG) $(@:_config=) arm arm926ejs at91sam9260ek atmel at91
 
+at91sam9g20ek_config	:	unconfig
+	@$(MKCONFIG) $(@:_config=) arm arm926ejs at91sam9g20ek atmel at91
+
 ########################################################################
 ## ARM Integrator boards - see doc/README-integrator for more info.
 integratorap_config	\
diff --git a/board/atmel/at91sam9g20ek/Makefile b/board/atmel/at91sam9g20ek/Makefile
new file mode 100644
index 00000000000..cdf5d342947
--- /dev/null
+++ b/board/atmel/at91sam9g20ek/Makefile
@@ -0,0 +1,57 @@
+#
+# (C) Copyright 2003-2008
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# (C) Copyright 2008
+# Stelian Pop <stelian.pop@leadtechdesign.com>
+# Lead Tech Design <www.leadtechdesign.com>
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).a
+
+COBJS-y	+= at91sam9g20ek.o
+COBJS-y	+= led.o
+COBJS-y	+= partition.o
+COBJS-$(CONFIG_CMD_NAND) += nand.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS-y))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/atmel/at91sam9g20ek/at91sam9g20ek.c b/board/atmel/at91sam9g20ek/at91sam9g20ek.c
new file mode 100644
index 00000000000..4f63da4096a
--- /dev/null
+++ b/board/atmel/at91sam9g20ek/at91sam9g20ek.c
@@ -0,0 +1,261 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * 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>
+#include <asm/arch/at91sam9260.h>
+#include <asm/arch/at91sam9260_matrix.h>
+#include <asm/arch/at91sam9_smc.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_rstc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+#include <asm/arch/hardware.h>
+#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
+#include <net.h>
+#endif
+#include <netdev.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* ------------------------------------------------------------------------- */
+/*
+ * Miscelaneous platform dependent initialisations
+ */
+
+static void at91sam9g20ek_serial_hw_init(void)
+{
+#ifdef CONFIG_USART0
+	at91_set_A_periph(AT91_PIN_PB4, 1);		/* TXD0 */
+	at91_set_A_periph(AT91_PIN_PB5, 0);		/* RXD0 */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US0);
+#endif
+
+#ifdef CONFIG_USART1
+	at91_set_A_periph(AT91_PIN_PB6, 1);		/* TXD1 */
+	at91_set_A_periph(AT91_PIN_PB7, 0);		/* RXD1 */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US1);
+#endif
+
+#ifdef CONFIG_USART2
+	at91_set_A_periph(AT91_PIN_PB8, 1);		/* TXD2 */
+	at91_set_A_periph(AT91_PIN_PB9, 0);		/* RXD2 */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US2);
+#endif
+
+#ifdef CONFIG_USART3	/* DBGU */
+	at91_set_A_periph(AT91_PIN_PB14, 0);		/* DRXD */
+	at91_set_A_periph(AT91_PIN_PB15, 1);		/* DTXD */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
+#endif
+}
+
+#ifdef CONFIG_CMD_NAND
+static void at91sam9g20ek_nand_hw_init(void)
+{
+	unsigned long csa;
+
+	/* Enable CS3 */
+	csa = at91_sys_read(AT91_MATRIX_EBICSA);
+	at91_sys_write(AT91_MATRIX_EBICSA,
+		       csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
+
+	/* Configure SMC CS3 for NAND/SmartMedia */
+	at91_sys_write(AT91_SMC_SETUP(3),
+		       AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
+		       AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
+	at91_sys_write(AT91_SMC_PULSE(3),
+		       AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
+		       AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
+	at91_sys_write(AT91_SMC_CYCLE(3),
+		       AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
+	at91_sys_write(AT91_SMC_MODE(3),
+		       AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
+		       AT91_SMC_EXNWMODE_DISABLE |
+#ifdef CFG_NAND_DBW_16
+		       AT91_SMC_DBW_16 |
+#else /* CFG_NAND_DBW_8 */
+		       AT91_SMC_DBW_8 |
+#endif
+		       AT91_SMC_TDF_(2));
+
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOC);
+
+	/* Configure RDY/BSY */
+	at91_set_gpio_input(AT91_PIN_PC13, 1);
+
+	/* Enable NandFlash */
+	at91_set_gpio_output(AT91_PIN_PC14, 1);
+}
+#endif
+
+#ifdef CONFIG_HAS_DATAFLASH
+static void at91sam9g20ek_spi_hw_init(void)
+{
+	at91_set_A_periph(AT91_PIN_PA3, 0);	/* SPI0_NPCS0 */
+	at91_set_B_periph(AT91_PIN_PC11, 0);	/* SPI0_NPCS1 */
+
+	at91_set_A_periph(AT91_PIN_PA0, 0);	/* SPI0_MISO */
+	at91_set_A_periph(AT91_PIN_PA1, 0);	/* SPI0_MOSI */
+	at91_set_A_periph(AT91_PIN_PA2, 0);	/* SPI0_SPCK */
+
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_SPI0);
+}
+#endif
+
+#ifdef CONFIG_MACB
+static void at91sam9g20ek_macb_hw_init(void)
+{
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_EMAC);
+
+	/*
+	 * Disable pull-up on:
+	 *	RXDV (PA17) => PHY normal mode (not Test mode)
+	 *	ERX0 (PA14) => PHY ADDR0
+	 *	ERX1 (PA15) => PHY ADDR1
+	 *	ERX2 (PA25) => PHY ADDR2
+	 *	ERX3 (PA26) => PHY ADDR3
+	 *	ECRS (PA28) => PHY ADDR4  => PHYADDR = 0x0
+	 *
+	 * PHY has internal pull-down
+	 */
+	writel(pin_to_mask(AT91_PIN_PA14) |
+	       pin_to_mask(AT91_PIN_PA15) |
+	       pin_to_mask(AT91_PIN_PA17) |
+	       pin_to_mask(AT91_PIN_PA25) |
+	       pin_to_mask(AT91_PIN_PA26) |
+	       pin_to_mask(AT91_PIN_PA28),
+	       pin_to_controller(AT91_PIN_PA0) + PIO_PUDR);
+
+	/* Need to reset PHY -> 500ms reset */
+	at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
+				     (AT91_RSTC_ERSTL & (0x0D << 8)) |
+				     AT91_RSTC_URSTEN);
+
+	at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST);
+
+	/* Wait for end hardware reset */
+	while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL));
+
+	/* Restore NRST value */
+	at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
+				     (AT91_RSTC_ERSTL & (0x0 << 8)) |
+				     AT91_RSTC_URSTEN);
+
+	/* Re-enable pull-up */
+	writel(pin_to_mask(AT91_PIN_PA14) |
+	       pin_to_mask(AT91_PIN_PA15) |
+	       pin_to_mask(AT91_PIN_PA17) |
+	       pin_to_mask(AT91_PIN_PA25) |
+	       pin_to_mask(AT91_PIN_PA26) |
+	       pin_to_mask(AT91_PIN_PA28),
+	       pin_to_controller(AT91_PIN_PA0) + PIO_PUER);
+
+	at91_set_A_periph(AT91_PIN_PA19, 0);	/* ETXCK_EREFCK */
+	at91_set_A_periph(AT91_PIN_PA17, 0);	/* ERXDV */
+	at91_set_A_periph(AT91_PIN_PA14, 0);	/* ERX0 */
+	at91_set_A_periph(AT91_PIN_PA15, 0);	/* ERX1 */
+	at91_set_A_periph(AT91_PIN_PA18, 0);	/* ERXER */
+	at91_set_A_periph(AT91_PIN_PA16, 0);	/* ETXEN */
+	at91_set_A_periph(AT91_PIN_PA12, 0);	/* ETX0 */
+	at91_set_A_periph(AT91_PIN_PA13, 0);	/* ETX1 */
+	at91_set_A_periph(AT91_PIN_PA21, 0);	/* EMDIO */
+	at91_set_A_periph(AT91_PIN_PA20, 0);	/* EMDC */
+
+#ifndef CONFIG_RMII
+	at91_set_B_periph(AT91_PIN_PA28, 0);	/* ECRS */
+	at91_set_B_periph(AT91_PIN_PA29, 0);	/* ECOL */
+	at91_set_B_periph(AT91_PIN_PA25, 0);	/* ERX2 */
+	at91_set_B_periph(AT91_PIN_PA26, 0);	/* ERX3 */
+	at91_set_B_periph(AT91_PIN_PA27, 0);	/* ERXCK */
+#if defined(CONFIG_AT91SAM9G20EK)
+	/*
+	 * use PA10, PA11 for ETX2, ETX3.
+	 * PA23 and PA24 are for TWI EEPROM
+	 */
+	at91_set_B_periph(AT91_PIN_PA10, 0);	/* ETX2 */
+	at91_set_B_periph(AT91_PIN_PA11, 0);	/* ETX3 */
+#else
+	at91_set_B_periph(AT91_PIN_PA23, 0);	/* ETX2 */
+	at91_set_B_periph(AT91_PIN_PA24, 0);	/* ETX3 */
+#endif
+	at91_set_B_periph(AT91_PIN_PA22, 0);	/* ETXER */
+#endif
+
+}
+#endif
+
+int board_init(void)
+{
+	/* Enable Ctrlc */
+	console_init_f();
+
+	/* arch number of AT91SAM9G20EK-Board */
+	gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9G20EK;
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+	at91sam9g20ek_serial_hw_init();
+#ifdef CONFIG_CMD_NAND
+	at91sam9g20ek_nand_hw_init();
+#endif
+#ifdef CONFIG_HAS_DATAFLASH
+	at91sam9g20ek_spi_hw_init();
+#endif
+#ifdef CONFIG_MACB
+	at91sam9g20ek_macb_hw_init();
+#endif
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->bd->bi_dram[0].start = PHYS_SDRAM;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
+	return 0;
+}
+
+#ifdef CONFIG_RESET_PHY_R
+void reset_phy(void)
+{
+#ifdef CONFIG_MACB
+	/*
+	 * Initialize ethernet HW addr prior to starting Linux,
+	 * needed for nfsroot
+	 */
+	eth_init(gd->bd);
+#endif
+}
+#endif
+
+int board_eth_init(bd_t *bis)
+{
+	int rc = 0;
+#ifdef CONFIG_MACB
+	rc = macb_eth_initialize(0, (void *)AT91_BASE_EMAC, 0x00);
+#endif
+	return rc;
+}
diff --git a/board/atmel/at91sam9g20ek/config.mk b/board/atmel/at91sam9g20ek/config.mk
new file mode 100644
index 00000000000..ff2cfd170bb
--- /dev/null
+++ b/board/atmel/at91sam9g20ek/config.mk
@@ -0,0 +1 @@
+TEXT_BASE = 0x23f00000
diff --git a/board/atmel/at91sam9g20ek/led.c b/board/atmel/at91sam9g20ek/led.c
new file mode 100644
index 00000000000..ddc375f267a
--- /dev/null
+++ b/board/atmel/at91sam9g20ek/led.c
@@ -0,0 +1,64 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * 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>
+#include <asm/arch/at91sam9260.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+#define	RED_LED		AT91_PIN_PA9	/* this is the power led */
+#define	GREEN_LED	AT91_PIN_PA6	/* this is the user led */
+
+void red_LED_on(void)
+{
+	at91_set_gpio_value(RED_LED, 1);
+}
+
+void red_LED_off(void)
+{
+	at91_set_gpio_value(RED_LED, 0);
+}
+
+void green_LED_on(void)
+{
+	at91_set_gpio_value(GREEN_LED, 0);
+}
+
+void green_LED_off(void)
+{
+	at91_set_gpio_value(GREEN_LED, 1);
+}
+
+void coloured_LED_init(void)
+{
+	/* Enable clock */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOA);
+
+	at91_set_gpio_output(RED_LED, 1);
+	at91_set_gpio_output(GREEN_LED, 1);
+
+	at91_set_gpio_value(RED_LED, 0);
+	at91_set_gpio_value(GREEN_LED, 1);
+}
diff --git a/board/atmel/at91sam9g20ek/nand.c b/board/atmel/at91sam9g20ek/nand.c
new file mode 100644
index 00000000000..665e35c54b9
--- /dev/null
+++ b/board/atmel/at91sam9g20ek/nand.c
@@ -0,0 +1,78 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * (C) Copyright 2006 ATMEL Rousset, Lacressonniere Nicolas
+ *
+ * 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>
+#include <asm/arch/at91sam9260.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/at91_pio.h>
+
+#include <nand.h>
+
+/*
+ *	hardware specific access to control-lines
+ */
+#define	MASK_ALE	(1 << 21)	/* our ALE is AD21 */
+#define	MASK_CLE	(1 << 22)	/* our CLE is AD22 */
+
+static void at91sam9260ek_nand_hwcontrol(struct mtd_info *mtd,
+					 int cmd, unsigned int ctrl)
+{
+	struct nand_chip *this = mtd->priv;
+
+	if (ctrl & NAND_CTRL_CHANGE) {
+		ulong IO_ADDR_W = (ulong) this->IO_ADDR_W;
+		IO_ADDR_W &= ~(MASK_ALE | MASK_CLE);
+
+		if (ctrl & NAND_CLE)
+			IO_ADDR_W |= MASK_CLE;
+		if (ctrl & NAND_ALE)
+			IO_ADDR_W |= MASK_ALE;
+
+		at91_set_gpio_value(AT91_PIN_PC14, !(ctrl & NAND_NCE));
+		this->IO_ADDR_W = (void *) IO_ADDR_W;
+	}
+
+	if (cmd != NAND_CMD_NONE)
+		writeb(cmd, this->IO_ADDR_W);
+}
+
+static int at91sam9260ek_nand_ready(struct mtd_info *mtd)
+{
+	return at91_get_gpio_value(AT91_PIN_PC13);
+}
+
+int board_nand_init(struct nand_chip *nand)
+{
+	nand->ecc.mode = NAND_ECC_SOFT;
+#ifdef CFG_NAND_DBW_16
+	nand->options = NAND_BUSWIDTH_16;
+#endif
+	nand->cmd_ctrl = at91sam9260ek_nand_hwcontrol;
+	nand->dev_ready = at91sam9260ek_nand_ready;
+	nand->chip_delay = 20;
+
+	return 0;
+}
diff --git a/board/atmel/at91sam9g20ek/partition.c b/board/atmel/at91sam9g20ek/partition.c
new file mode 100644
index 00000000000..557d6954f46
--- /dev/null
+++ b/board/atmel/at91sam9g20ek/partition.c
@@ -0,0 +1,40 @@
+/*
+ * (C) Copyright 2008
+ * Ulf Samuelsson <ulf@atmel.com>
+ *
+ * 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>
+#include <config.h>
+#include <asm/hardware.h>
+#include <dataflash.h>
+
+AT91S_DATAFLASH_INFO dataflash_info[CFG_MAX_DATAFLASH_BANKS];
+
+struct dataflash_addr cs[CFG_MAX_DATAFLASH_BANKS] = {
+	{CFG_DATAFLASH_LOGIC_ADDR_CS0, 0},	/* Logical adress, CS */
+	{CFG_DATAFLASH_LOGIC_ADDR_CS1, 1}
+};
+
+/*define the area offsets*/
+dataflash_protect_t area_list[NB_DATAFLASH_AREA] = {
+	{0x00000000, 0x000041FF, FLAG_PROTECT_SET,   0, "Bootstrap"},
+	{0x00004200, 0x000083FF, FLAG_PROTECT_CLEAR, 0, "Environment"},
+	{0x00008400, 0x00041FFF, FLAG_PROTECT_SET,   0, "U-Boot"},
+	{0x00042000, 0x00251FFF, FLAG_PROTECT_CLEAR, 0,	"Kernel"},
+	{0x00252000, 0xFFFFFFFF, FLAG_PROTECT_CLEAR, 0,	"FS"},
+};
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index 08bebf74a5c..e23d6751353 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -416,14 +416,15 @@ static int macb_init(struct eth_device *netdev, bd_t *bd)
 	/* choose RMII or MII mode. This depends on the board */
 #ifdef CONFIG_RMII
 #if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \
-    defined(CONFIG_AT91SAM9263)
+    defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20)
 	macb_writel(macb, USRIO, MACB_BIT(RMII) | MACB_BIT(CLKEN));
 #else
 	macb_writel(macb, USRIO, 0);
 #endif
 #else
 #if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \
-    defined(CONFIG_AT91SAM9263)
+    defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20)
+
 	macb_writel(macb, USRIO, MACB_BIT(CLKEN));
 #else
 	macb_writel(macb, USRIO, MACB_BIT(MII));
diff --git a/include/asm-arm/arch-at91/hardware.h b/include/asm-arm/arch-at91/hardware.h
index f31241901a3..e2ae2f3f243 100644
--- a/include/asm-arm/arch-at91/hardware.h
+++ b/include/asm-arm/arch-at91/hardware.h
@@ -18,7 +18,7 @@
 
 #if defined(CONFIG_AT91RM9200)
 #include <asm/arch/at91rm9200.h>
-#elif defined(CONFIG_AT91SAM9260)
+#elif defined(CONFIG_AT91SAM9260) || defined(CONFIG_AT91SAM9G20EK)
 #include <asm/arch/at91sam9260.h>
 #define AT91_BASE_EMAC	AT91SAM9260_BASE_EMAC
 #define AT91_BASE_SPI	AT91SAM9260_BASE_SPI0
diff --git a/include/configs/at91sam9g20ek.h b/include/configs/at91sam9g20ek.h
new file mode 100644
index 00000000000..fc13142b691
--- /dev/null
+++ b/include/configs/at91sam9g20ek.h
@@ -0,0 +1,202 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * Configuation settings for the AT91SAM9G20EK board.
+ *
+ * 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
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/* ARM asynchronous clock */
+#define AT91_MAIN_CLOCK		198656000	/* from 18.432 MHz crystal */
+#define AT91_MASTER_CLOCK	132096000	/* peripheral clock */
+#define CFG_HZ			1000000		/* 1us resolution */
+
+#define AT91_SLOW_CLOCK		32768	/* slow clock */
+
+#define CONFIG_ARM926EJS	1	/* This is an ARM926EJS Core	*/
+#define CONFIG_AT91SAM9G20	1	/* It's an Atmel AT91SAM9G20 SoC*/
+#define CONFIG_AT91SAM9G20EK	1	/* on an AT91SAM9G20EK Board	*/
+#undef CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff	*/
+
+#define CONFIG_CMDLINE_TAG	1	/* enable passing of ATAGs	*/
+#define CONFIG_SETUP_MEMORY_TAGS 1
+#define CONFIG_INITRD_TAG	1
+
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#define CONFIG_SKIP_RELOCATE_UBOOT
+
+/*
+ * Hardware drivers
+ */
+#define CONFIG_ATMEL_USART	1
+#undef CONFIG_USART0
+#undef CONFIG_USART1
+#undef CONFIG_USART2
+#define CONFIG_USART3		1	/* USART 3 is DBGU */
+
+#define CONFIG_BOOTDELAY	3
+
+/*
+ * BOOTP options
+ */
+#define CONFIG_BOOTP_BOOTFILESIZE	1
+#define CONFIG_BOOTP_BOOTPATH		1
+#define CONFIG_BOOTP_GATEWAY		1
+#define CONFIG_BOOTP_HOSTNAME		1
+
+/*
+ * Command line configuration.
+ */
+#include <config_cmd_default.h>
+#undef CONFIG_CMD_BDI
+#undef CONFIG_CMD_IMI
+#undef CONFIG_CMD_AUTOSCRIPT
+#undef CONFIG_CMD_FPGA
+#undef CONFIG_CMD_LOADS
+#undef CONFIG_CMD_IMLS
+
+#define CONFIG_CMD_PING		1
+#define CONFIG_CMD_DHCP		1
+#define CONFIG_CMD_NAND		1
+#define CONFIG_CMD_USB		1
+
+/* SDRAM */
+#define CONFIG_NR_DRAM_BANKS		1
+#define PHYS_SDRAM			0x20000000
+#define PHYS_SDRAM_SIZE			0x04000000	/* 64 megs */
+
+/* DataFlash */
+#define CONFIG_HAS_DATAFLASH		1
+#define CFG_SPI_WRITE_TOUT		(5*CFG_HZ)
+#define CFG_MAX_DATAFLASH_BANKS		2
+#define CFG_DATAFLASH_LOGIC_ADDR_CS0	0xC0000000	/* CS0 */
+#define CFG_DATAFLASH_LOGIC_ADDR_CS1	0xD0000000	/* CS1 */
+#define AT91_SPI_CLK			15000000
+#define DATAFLASH_TCSS			(0x22 << 16)
+#define DATAFLASH_TCHS			(0x1 << 24)
+
+/* NAND flash */
+#define NAND_MAX_CHIPS			1
+#define CFG_MAX_NAND_DEVICE		1
+#define CFG_NAND_BASE			0x40000000
+#define CFG_NAND_DBW_8			1
+
+/* NOR flash - no real flash on this board */
+#define CFG_NO_FLASH			1
+
+/* Ethernet */
+#define CONFIG_MACB			1
+#define CONFIG_RMII			1
+#define CONFIG_NET_MULTI		1
+#define CONFIG_NET_RETRY_COUNT		20
+#define CONFIG_RESET_PHY_R		1
+
+/* USB */
+#define CONFIG_USB_OHCI_NEW		1
+#define LITTLEENDIAN			1
+#define CONFIG_DOS_PARTITION		1
+#define CFG_USB_OHCI_CPU_INIT		1
+#define CFG_USB_OHCI_REGS_BASE		0x00500000	/* AT91SAM9G20_UHP_BASE */
+#define CFG_USB_OHCI_SLOT_NAME		"at91sam9g20"
+#define CFG_USB_OHCI_MAX_ROOT_PORTS	2
+#define CONFIG_USB_STORAGE		1
+
+#define CFG_LOAD_ADDR			0x22000000	/* load address */
+
+#define CFG_MEMTEST_START		PHYS_SDRAM
+#define CFG_MEMTEST_END			0x23e00000
+
+#undef CFG_USE_DATAFLASH_CS0
+#define CFG_USE_DATAFLASH_CS1		1
+#undef CFG_USE_NANDFLASH
+
+#ifdef CFG_USE_DATAFLASH_CS0
+
+/* bootstrap + u-boot + env + linux in dataflash on CS0 */
+#define CONFIG_ENV_IS_IN_DATAFLASH	1
+#define CFG_MONITOR_BASE	(CFG_DATAFLASH_LOGIC_ADDR_CS0 + 0x8400)
+#define CONFIG_ENV_OFFSET		0x4200
+#define CONFIG_ENV_ADDR		(CFG_DATAFLASH_LOGIC_ADDR_CS0 + CONFIG_ENV_OFFSET)
+#define CONFIG_ENV_SIZE		0x4200
+#define CONFIG_BOOTCOMMAND	"cp.b 0xC0042000 0x22000000 0x210000; bootm"
+#define CONFIG_BOOTARGS		"console=ttyS0,115200 "			\
+				"root=/dev/mtdblock0 "			\
+				"mtdparts=at91_nand:-(root) "		\
+				"rw rootfstype=jffs2"
+
+#elif CFG_USE_DATAFLASH_CS1
+
+/* bootstrap + u-boot + env + linux in dataflash on CS1 */
+#define CONFIG_ENV_IS_IN_DATAFLASH	1
+#define CFG_MONITOR_BASE	(CFG_DATAFLASH_LOGIC_ADDR_CS1 + 0x8400)
+#define CONFIG_ENV_OFFSET		0x4200
+#define CONFIG_ENV_ADDR		(CFG_DATAFLASH_LOGIC_ADDR_CS1 + CONFIG_ENV_OFFSET)
+#define CONFIG_ENV_SIZE		0x4200
+#define CONFIG_BOOTCOMMAND	"cp.b 0xD0042000 0x22000000 0x210000; bootm"
+#define CONFIG_BOOTARGS		"console=ttyS0,115200 "			\
+				"root=/dev/mtdblock0 "			\
+				"mtdparts=at91_nand:-(root) "		\
+				"rw rootfstype=jffs2"
+
+#else /* CFG_USE_NANDFLASH */
+
+/* bootstrap + u-boot + env + linux in nandflash */
+#define CONFIG_ENV_IS_IN_NAND	1
+#define CONFIG_ENV_OFFSET		0x60000
+#define CONFIG_ENV_OFFSET_REDUND	0x80000
+#define CONFIG_ENV_SIZE		0x20000		/* 1 sector = 128 kB */
+#define CONFIG_BOOTCOMMAND	"nand read 0x22000000 0xA0000 0x200000; bootm"
+#define CONFIG_BOOTARGS		"console=ttyS0,115200 "			\
+				"root=/dev/mtdblock5 "			\
+				"mtdparts=at91_nand:128k(bootstrap)ro,"	\
+				"256k(uboot)ro,128k(env1)ro,"		\
+				"128k(env2)ro,2M(linux),-(root) "	\
+				"rw rootfstype=jffs2"
+
+#endif
+
+#define CONFIG_BAUDRATE		115200
+#define CFG_BAUDRATE_TABLE	{115200 , 19200, 38400, 57600, 9600 }
+
+#define CFG_PROMPT		"U-Boot> "
+#define CFG_CBSIZE		256
+#define CFG_MAXARGS		16
+#define CFG_PBSIZE		(CFG_CBSIZE + sizeof(CFG_PROMPT) + 16)
+#define CFG_LONGHELP		1
+#define CONFIG_CMDLINE_EDITING	1
+
+#define ROUND(A, B)		(((A) + (B)) & ~((B) - 1))
+/*
+ * Size of malloc() pool
+ */
+#define CFG_MALLOC_LEN		ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)
+#define CFG_GBL_DATA_SIZE	128	/* 128 bytes for initial data */
+
+#define CONFIG_STACKSIZE	(32*1024)	/* regular stack */
+
+#ifdef CONFIG_USE_IRQ
+#error CONFIG_USE_IRQ not supported
+#endif
+
+#endif