imx27lite: add support for imx27lite board from LogicPD

This patch adds support for i.MX27-LITEKIT development board from
LogicPD. This board uses i.MX27 SoC and has 2MB NOR flash, 64MB NAND
flash, FEC ethernet controller integrated into i.MX27.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Acked-by: Wolfgang Denk <wd@denx.de>

MAINTAINERS

@@ -543,6 +543,7 @@ George G. Davis <gdavis@mvista.com>
 	gcplus		SA1100
 
 Wolfgang Denk <wd@denx.de>
+	imx27lite	i.MX27
 	qong		i.MX31
 
 Thomas Elste <info@elste.org>

MAKEALL

@@ -520,6 +520,7 @@ LIST_ARM9="			\
 	cp926ejs		\
 	cp946es			\
 	cp966			\
+	imx27lite		\
 	lpd7a400		\
 	mv88f6281gtw_ge		\
 	mx1ads			\

Makefile

@@ -2938,6 +2938,9 @@ davinci_sonata_config :	unconfig
 davinci_dm355evm_config :	unconfig
 	@$(MKCONFIG) $(@:_config=) arm arm926ejs dm355evm davinci davinci
 
+imx27lite_config:	unconfig
+	@$(MKCONFIG) $(@:_config=) arm arm926ejs imx27lite logicpd mx27
+
 lpd7a400_config \
 lpd7a404_config:	unconfig
 	@$(MKCONFIG) $(@:_config=) arm lh7a40x lpd7a40x

board/logicpd/imx27lite/Makefile

@@ -0,0 +1,51 @@
+#
+# (C) Copyright 2000-2004
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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	:= imx27lite.o
+SOBJS	:= lowlevel_init.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+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
+
+#########################################################################
+
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
+

board/logicpd/imx27lite/config.mk

@@ -0,0 +1 @@
+TEXT_BASE = 0xA7F00000

board/logicpd/imx27lite/imx27lite.c

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2007 Sascha Hauer, Pengutronix
+ * Copyright (C) 2008,2009 Eric Jarrige <jorasse@users.sourceforge.net>
+ * Copyright (C) 2009 Ilya Yanok <yanok@emcraft.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 <asm/io.h>
+#include <asm/arch/imx-regs.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init (void)
+{
+	struct gpio_regs *regs = (struct gpio_regs *)IMX_GPIO_BASE;
+
+	gd->bd->bi_arch_number = MACH_TYPE_IMX27LITE;
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+#ifdef CONFIG_MXC_UART
+	mx27_uart_init_pins();
+#endif
+#ifdef CONFIG_FEC_MXC
+	mx27_fec_init_pins();
+	imx_gpio_mode((GPIO_PORTC | GPIO_OUT | GPIO_PUEN | GPIO_GPIO | 31));
+	writel(readl(&regs->port[PORTC].dr) | (1 << 31),
+				&regs->port[PORTC].dr);
+#endif
+#ifdef CONFIG_MXC_MMC
+	mx27_sd2_init_pins();
+#endif
+
+	return 0;
+}
+
+int dram_init (void)
+{
+
+#if CONFIG_NR_DRAM_BANKS > 0
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = get_ram_size((volatile void *)PHYS_SDRAM_1,
+			PHYS_SDRAM_1_SIZE);
+#endif
+#if CONFIG_NR_DRAM_BANKS > 1
+	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+	gd->bd->bi_dram[1].size = get_ram_size((volatile void *)PHYS_SDRAM_2,
+			PHYS_SDRAM_2_SIZE);
+#endif
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	printf("LogicPD imx27lite\n");
+	return 0;
+}

board/logicpd/imx27lite/lowlevel_init.S

@@ -0,0 +1,170 @@
+/*
+ * For clock initialization, see chapter 3 of the "MCIMX27 Multimedia
+ * Applications Processor Reference Manual, Rev. 0.2".
+ *
+ * (C) Copyright 2008 Eric Jarrige <eric.jarrige@armadeus.org>
+ * (C) Copyright 2009 Ilya Yanok <yanok@emcraft.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 <config.h>
+#include <version.h>
+#include <asm/macro.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/asm-offsets.h>
+
+SOC_ESDCTL_BASE_W:	.word	IMX_ESD_BASE
+SOC_SI_ID_REG_W:	.word	IMX_SYSTEM_CTL_BASE
+SDRAM_ESDCFG_T1_W:	.word	SDRAM_ESDCFG_REGISTER_VAL(0)
+SDRAM_ESDCFG_T2_W:	.word	SDRAM_ESDCFG_REGISTER_VAL(3)
+SDRAM_PRECHARGE_CMD_W:	.word	(ESDCTL_SDE | ESDCTL_SMODE_PRECHARGE | \
+				 ESDCTL_ROW13 | ESDCTL_COL10)
+SDRAM_AUTOREF_CMD_W:	.word	(ESDCTL_SDE | ESDCTL_SMODE_AUTO_REF | \
+				 ESDCTL_ROW13 | ESDCTL_COL10)
+SDRAM_LOADMODE_CMD_W:	.word	(ESDCTL_SDE | ESDCTL_SMODE_LOAD_MODE | \
+				 ESDCTL_ROW13 | ESDCTL_COL10)
+SDRAM_NORMAL_CMD_W:	.word	SDRAM_ESDCTL_REGISTER_VAL
+
+.macro init_aipi
+	/*
+	 * setup AIPI1 and AIPI2
+	 */
+	write32 AIPI1_PSR0, AIPI1_PSR0_VAL
+	write32 AIPI1_PSR1, AIPI1_PSR1_VAL
+	write32 AIPI2_PSR0, AIPI2_PSR0_VAL
+	write32 AIPI2_PSR1, AIPI2_PSR1_VAL
+
+.endm /* init_aipi */
+
+.macro init_clock
+	ldr r0, =CSCR
+	/* disable MPLL/SPLL first */
+	ldr r1, [r0]
+	bic r1, r1, #(CSCR_MPEN|CSCR_SPEN)
+	str r1, [r0]
+
+	write32 MPCTL0, MPCTL0_VAL
+	write32 SPCTL0, SPCTL0_VAL
+
+	write32 CSCR, CSCR_VAL | CSCR_MPLL_RESTART | CSCR_SPLL_RESTART
+
+	/*
+	 * add some delay here
+	 */
+	wait_timer 0x1000
+
+	/* peripheral clock divider */
+	write32 PCDR0, PCDR0_VAL
+	write32 PCDR1, PCDR1_VAL
+
+	/* Configure PCCR0 and PCCR1 */
+	write32 PCCR0, PCCR0_VAL
+	write32 PCCR1, PCCR1_VAL
+
+.endm /* init_clock */
+
+.macro sdram_init
+	ldr r0, SOC_ESDCTL_BASE_W
+	mov r2, #PHYS_SDRAM_1
+
+	/* Do initial reset */
+	mov r1, #ESDMISC_MDDR_DL_RST
+	str r1, [r0, #ESDMISC_ROF]
+
+	/* Hold for more than 200ns */
+	wait_timer 0x10000
+
+	/* Activate LPDDR iface */
+	mov r1, #ESDMISC_MDDREN
+	str r1, [r0, #ESDMISC_ROF]
+
+	/* Check The chip version TO1 or TO2 */
+	ldr r1, SOC_SI_ID_REG_W
+	ldr r1, [r1]
+	ands r1, r1, #0xF0000000
+	/* add Latency on CAS only for TO2 */
+	ldreq r1, SDRAM_ESDCFG_T2_W
+	ldrne r1, SDRAM_ESDCFG_T1_W
+	str r1, [r0, #ESDCFG0_ROF]
+
+	/* Run initialization sequence */
+	ldr r1, SDRAM_PRECHARGE_CMD_W
+	str r1, [r0, #ESDCTL0_ROF]
+	ldr r1, [r2, #SDRAM_ALL_VAL]
+
+	ldr r1, SDRAM_AUTOREF_CMD_W
+	str r1, [r0, #ESDCTL0_ROF]
+	ldr r1, [r2, #SDRAM_ALL_VAL]
+	ldr r1, [r2, #SDRAM_ALL_VAL]
+
+	ldr r1, SDRAM_LOADMODE_CMD_W
+	str r1, [r0, #ESDCTL0_ROF]
+	ldrb r1, [r2, #SDRAM_MODE_REGISTER_VAL]
+	add r3, r2, #SDRAM_EXT_MODE_REGISTER_VAL
+	ldrb r1, [r3]
+
+	ldr r1, SDRAM_NORMAL_CMD_W
+	str r1, [r0, #ESDCTL0_ROF]
+
+#if (CONFIG_NR_DRAM_BANKS > 1)
+	/* 2nd sdram */
+	mov r2, #PHYS_SDRAM_2
+
+	/* Check The chip version TO1 or TO2 */
+	ldr r1, SOC_SI_ID_REG_W
+	ldr r1, [r1]
+	ands r1, r1, #0xF0000000
+	/* add Latency on CAS only for TO2 */
+	ldreq r1, SDRAM_ESDCFG_T2_W
+	ldrne r1, SDRAM_ESDCFG_T1_W
+	str r1, [r0, #ESDCFG1_ROF]
+
+	/* Run initialization sequence */
+	ldr r1, SDRAM_PRECHARGE_CMD_W
+	str r1, [r0, #ESDCTL1_ROF]
+	ldr r1, [r2, #SDRAM_ALL_VAL]
+
+	ldr r1, SDRAM_AUTOREF_CMD_W
+	str r1, [r0, #ESDCTL1_ROF]
+	ldr r1, [r2, #SDRAM_ALL_VAL]
+	ldr r1, [r2, #SDRAM_ALL_VAL]
+
+	ldr r1, SDRAM_LOADMODE_CMD_W
+	str r1, [r0, #ESDCTL1_ROF]
+	ldrb r1, [r2, #SDRAM_MODE_REGISTER_VAL]
+	add r3, r2, #SDRAM_EXT_MODE_REGISTER_VAL
+	ldrb r1, [r3]
+
+	ldr r1, SDRAM_NORMAL_CMD_W
+	str r1, [r0, #ESDCTL1_ROF]
+#endif  /* CONFIG_NR_DRAM_BANKS > 1 */
+
+.endm /* sdram_init */
+
+.globl	lowlevel_init
+lowlevel_init:
+
+	mov	r10, lr
+
+	init_aipi
+
+	init_clock
+
+	sdram_init
+
+	mov	pc,r10

cpu/arm926ejs/mx27/generic.c

@@ -264,3 +264,68 @@ void imx_gpio_mode(int gpio_mode)
 				&regs->port[port].iconfb2);
 	}
 }
+
+#ifdef CONFIG_MXC_UART
+void mx27_uart_init_pins(void)
+{
+	int i;
+	unsigned int mode[] = {
+		PE12_PF_UART1_TXD,
+		PE13_PF_UART1_RXD,
+	};
+
+	for (i = 0; i < ARRAY_SIZE(mode); i++)
+		imx_gpio_mode(mode[i]);
+
+}
+#endif /* CONFIG_MXC_UART */
+
+#ifdef CONFIG_FEC_MXC
+void mx27_fec_init_pins(void)
+{
+	int i;
+	unsigned int mode[] = {
+		PD0_AIN_FEC_TXD0,
+		PD1_AIN_FEC_TXD1,
+		PD2_AIN_FEC_TXD2,
+		PD3_AIN_FEC_TXD3,
+		PD4_AOUT_FEC_RX_ER,
+		PD5_AOUT_FEC_RXD1,
+		PD6_AOUT_FEC_RXD2,
+		PD7_AOUT_FEC_RXD3,
+		PD8_AF_FEC_MDIO,
+		PD9_AIN_FEC_MDC | GPIO_PUEN,
+		PD10_AOUT_FEC_CRS,
+		PD11_AOUT_FEC_TX_CLK,
+		PD12_AOUT_FEC_RXD0,
+		PD13_AOUT_FEC_RX_DV,
+		PD14_AOUT_FEC_CLR,
+		PD15_AOUT_FEC_COL,
+		PD16_AIN_FEC_TX_ER,
+		PF23_AIN_FEC_TX_EN,
+	};
+
+	for (i = 0; i < ARRAY_SIZE(mode); i++)
+		imx_gpio_mode(mode[i]);
+}
+#endif /* CONFIG_FEC_MXC */
+
+#ifdef CONFIG_MXC_MMC
+void mx27_sd2_init_pins(void)
+{
+	int i;
+	unsigned int mode[] = {
+		PB4_PF_SD2_D0,
+		PB5_PF_SD2_D1,
+		PB6_PF_SD2_D2,
+		PB7_PF_SD2_D3,
+		PB8_PF_SD2_CMD,
+		PB9_PF_SD2_CLK,
+	};
+
+	for (i = 0; i < ARRAY_SIZE(mode); i++)
+		imx_gpio_mode(mode[i]);
+
+}
+#endif /* CONFIG_MXC_MMC */
+

include/asm-arm/arch-mx27/imx-regs.h

@@ -28,6 +28,18 @@
 
 extern void imx_gpio_mode (int gpio_mode);
 
+#ifdef CONFIG_MXC_UART
+extern void mx27_uart_init_pins(void);
+#endif /* CONFIG_MXC_UART */
+
+#ifdef CONFIG_FEC_MXC
+extern void mx27_fec_init_pins(void);
+#endif /* CONFIG_FEC_MXC */
+
+#ifdef CONFIG_MXC_MMC
+extern void mx27_sd2_init_pins(void);
+#endif /* CONFIG_MXC_MMC */
+
 /* AIPI */
 struct aipi_regs {
 	u32 psr0;

include/configs/imx27lite.h

@@ -0,0 +1,252 @@
+/*
+ * Copyright (C) 2009 Ilya Yanok <yanok@emcraft.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
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * SoC Configuration
+ */
+#define CONFIG_ARM926EJS			/* arm926ejs CPU core */
+#define CONFIG_MX27
+#define CONFIG_IMX27LITE
+#define CONFIG_MX27_CLK32	32768		/* OSC32K frequency */
+#define CONFIG_SYS_HZ		1000
+
+#define CONFIG_DISPLAY_CPUINFO
+
+#define CONFIG_CMDLINE_TAG		1	/* enable passing of ATAGs */
+#define CONFIG_SETUP_MEMORY_TAGS	1
+#define CONFIG_INITRD_TAG		1
+
+/*
+ * Lowlevel configuration
+ */
+#define SDRAM_ESDCFG_REGISTER_VAL(cas)	\
+		(ESDCFG_TRC(10) |	\
+		ESDCFG_TRCD(3) |	\
+		ESDCFG_TCAS(cas) |	\
+		ESDCFG_TRRD(1) |	\
+		ESDCFG_TRAS(5) |	\
+		ESDCFG_TWR |		\
+		ESDCFG_TMRD(2) |	\
+		ESDCFG_TRP(2) |		\
+		ESDCFG_TXP(3))
+
+#define SDRAM_ESDCTL_REGISTER_VAL	\
+		(ESDCTL_PRCT(0) |	\
+		 ESDCTL_BL |		\
+		 ESDCTL_PWDT(0) |	\
+		 ESDCTL_SREFR(3) |	\
+		 ESDCTL_DSIZ_32 |	\
+		 ESDCTL_COL10 |		\
+		 ESDCTL_ROW13 |		\
+		 ESDCTL_SDE)
+
+#define SDRAM_ALL_VAL		0xf00
+
+#define SDRAM_MODE_REGISTER_VAL	0x33	/* BL: 8, CAS: 3 */
+#define SDRAM_EXT_MODE_REGISTER_VAL	0x1000000
+
+#define MPCTL0_VAL	0x1ef15d5
+
+#define SPCTL0_VAL	0x043a1c09
+
+#define CSCR_VAL	0x33f08107
+
+#define PCDR0_VAL	0x120470c3
+#define PCDR1_VAL	0x03030303
+#define PCCR0_VAL	0xffffffff
+#define PCCR1_VAL	0xfffffffc
+
+#define AIPI1_PSR0_VAL	0x20040304
+#define AIPI1_PSR1_VAL	0xdffbfcfb
+#define AIPI2_PSR0_VAL	0x07ffc200
+#define AIPI2_PSR1_VAL	0xffffffff
+
+/*
+ * Memory Info
+ */
+/* malloc() len */
+#define CONFIG_SYS_MALLOC_LEN		(0x10000 + 512 * 1024)
+/* reserved for initial data */
+#define CONFIG_SYS_GBL_DATA_SIZE	128
+/* memtest start address */
+#define CONFIG_SYS_MEMTEST_START	0xA0000000
+#define CONFIG_SYS_MEMTEST_END		0xA1000000	/* 16MB RAM test */
+#define CONFIG_NR_DRAM_BANKS	1		/* we have 1 bank of DRAM */
+#define CONFIG_STACKSIZE	(256 * 1024)	/* regular stack */
+#define PHYS_SDRAM_1		0xA0000000	/* DDR Start */
+#define PHYS_SDRAM_1_SIZE	0x08000000	/* DDR size 128MB */
+
+/*
+ * Serial Driver info
+ */
+#define CONFIG_MXC_UART
+#define CONFIG_SYS_MX27_UART1
+#define CONFIG_CONS_INDEX	1		/* use UART0 for console */
+#define CONFIG_BAUDRATE		115200		/* Default baud rate */
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+
+/*
+ * Flash & Environment
+ */
+#define CONFIG_ENV_IS_IN_FLASH
+#define CONFIG_FLASH_CFI_DRIVER
+#define CONFIG_SYS_FLASH_CFI
+/* Use buffered writes (~10x faster) */
+#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE	1
+/* Use hardware sector protection */
+#define CONFIG_SYS_FLASH_PROTECTION		1
+#define CONFIG_SYS_MAX_FLASH_BANKS	1	/* max number of flash banks */
+#define CONFIG_SYS_FLASH_SECT_SZ	0x2000	/* 8KB sect size Intel Flash */
+/* end of flash */
+#define CONFIG_ENV_OFFSET		(PHYS_FLASH_SIZE - 0x20000)
+/* CS2 Base address */
+#define PHYS_FLASH_1			0xc0000000
+/* Flash Base for U-Boot */
+#define CONFIG_SYS_FLASH_BASE		PHYS_FLASH_1
+/* Flash size 2MB */
+#define PHYS_FLASH_SIZE			0x200000
+#define CONFIG_SYS_MAX_FLASH_SECT	(PHYS_FLASH_SIZE / \
+		CONFIG_SYS_FLASH_SECT_SZ)
+#define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_FLASH_BASE
+#define CONFIG_SYS_MONITOR_LEN		0x40000		/* Reserve 256KiB */
+#define CONFIG_ENV_SECT_SIZE		0x10000		/* Env sector Size */
+#define CONFIG_ENV_SIZE		CONFIG_ENV_SECT_SIZE
+/* Address and size of Redundant Environment Sector	*/
+#define CONFIG_ENV_OFFSET_REDUND	(CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)
+#define CONFIG_ENV_SIZE_REDUND	CONFIG_ENV_SIZE
+
+/*
+ * Ethernet
+ */
+#define CONFIG_FEC_MXC
+#define CONFIG_FEC_MXC_PHYADDR		0x1f
+#define CONFIG_MII
+#define CONFIG_NET_MULTI
+
+/*
+ * MTD
+ */
+#define CONFIG_MTD_DEVICE
+
+/*
+ * NAND
+ */
+#define CONFIG_NAND_MXC
+#define CONFIG_MXC_NAND_REGS_BASE	0xd8000000
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+#define CONFIG_SYS_NAND_BASE		0xd8000000
+#define CONFIG_JFFS2_NAND
+#define CONFIG_MXC_NAND_HWECC
+
+/*
+ * SD/MMC
+ */
+#define CONFIG_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_MXC_MMC
+#define CONFIG_MXC_MCI_REGS_BASE	0x10014000
+#define CONFIG_DOS_PARTITION
+
+/*
+ * MTD partitions
+ */
+#define CONFIG_CMD_MTDPARTS
+#define MTDIDS_DEFAULT		"nor0=physmap-flash.0,nand0=mxc_nand.0"
+#define MTDPARTS_DEFAULT			\
+	"mtdparts="				\
+		"physmap-flash.0:"		\
+			"256k(U-Boot),"		\
+			"1664k(user),"		\
+			"64k(env1),"		\
+			"64k(env2);"		\
+		"mxc_nand.0:"			\
+			"128k(IPL-SPL),"	\
+			"4m(kernel),"		\
+			"22m(rootfs),"		\
+			"-(userfs)"
+
+/*
+ * U-Boot general configuration
+ */
+#define CONFIG_BOOTFILE		"uImage"	/* Boot file name */
+#define CONFIG_SYS_PROMPT	"=> "	/* Monitor Command Prompt */
+#define CONFIG_SYS_CBSIZE	1024	/* Console I/O Buffer Size  */
+/* Print buffer sz */
+#define CONFIG_SYS_PBSIZE	(CONFIG_SYS_CBSIZE + \
+		sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_MAXARGS	16	/* max number of command args */
+/* Boot Argument Buffer Size */
+#define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_SYS_LONGHELP
+
+/*
+ * U-Boot commands
+ */
+#include <config_cmd_default.h>
+#define CONFIG_CMD_ASKENV
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_DIAG
+#define CONFIG_CMD_FAT
+#define CONFIG_CMD_JFFS2
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_MMC
+#define CONFIG_CMD_NAND
+#define CONFIG_CMD_PING
+
+#define CONFIG_BOOTDELAY	5
+
+#define CONFIG_LOADADDR		0xa0800000	/* loadaddr env var */
+#define CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
+
+#define xstr(s)	str(s)
+#define str(s)	#s
+
+#define	CONFIG_EXTRA_ENV_SETTINGS					\
+	"netdev=eth0\0"							\
+	"nfsargs=setenv bootargs root=/dev/nfs rw "			\
+		"nfsroot=${serverip}:${rootpath}\0"			\
+	"ramargs=setenv bootargs root=/dev/ram rw\0"			\
+	"addip=setenv bootargs ${bootargs} "				\
+		"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}"	\
+		":${hostname}:${netdev}:off panic=1\0"			\
+	"addtty=setenv bootargs ${bootargs}"				\
+		" console=ttymxc0,${baudrate}\0"			\
+	"addmtd=setenv bootargs ${bootargs} ${mtdparts}\0"		\
+	"addmisc=setenv bootargs ${bootargs}\0"				\
+	"u-boot=imx27/u-boot.bin\0"					\
+	"kernel_addr_r=a0800000\0"					\
+	"hostname=imx27\0"						\
+	"bootfile=imx27/uImage\0"					\
+	"rootpath=/opt/eldk-4.2-arm/arm\0"				\
+	"net_nfs=tftp ${kernel_addr_r} ${bootfile};"			\
+		"run nfsargs addip addtty addmtd addmisc;"		\
+		"bootm\0"						\
+	"bootcmd=run net_nfs\0"					\
+	"load=tftp ${loadaddr} ${u-boot}\0"				\
+	"update=protect off " xstr(CONFIG_SYS_MONITOR_BASE)		\
+		" +${filesize};era " xstr(CONFIG_SYS_MONITOR_BASE)	\
+		" +${filesize};cp.b ${fileaddr} "			\
+		xstr(CONFIG_SYS_MONITOR_BASE) " ${filesize}\0"		\
+	"upd=run load update\0"						\
+
+#endif /* __CONFIG_H */