mpc85xx: support for Freescale COM Express P2020

This adds support for the Freescale COM Express P2020 board. This board
is similar to the P1_P2_RDB, but has some extra (as well as missing)
peripherals.

Unlike all other mpc85xx boards, it uses a watchdog timeout to reset.
Using the HRESET_REQ register does not work.

This board has no NOR flash, and can only be booted via SD or SPI. This
procedure is documented in Freescale Document Number AN3659 "Booting
from On-Chip ROM (eSDHC or eSPI)." Some alternative documentation is
provided in Freescale Document Number P2020RM "P2020 QorIQ Integrated
Processor Reference Manual" (section 4.5).

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 576 insertions, 0 deletions

diff --git a/include/configs/P2020COME.h b/include/configs/P2020COME.h
new file mode 100644
index 0000000..db88b68
--- /dev/null
+++ b/include/configs/P2020COME.h
@@ -0,0 +1,576 @@
+/*
+ * Copyright 2009-2010 Freescale Semiconductor, 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
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/* The P2020COME board is only booted via the Freescale On-Chip ROM */
+#define CONFIG_SYS_RAMBOOT
+#define CONFIG_SYS_EXTRA_ENV_RELOC
+
+#define CONFIG_SYS_TEXT_BASE		0xf8f80000
+#define CONFIG_RESET_VECTOR_ADDRESS	0xf8fffffc
+
+#ifdef CONFIG_SDCARD
+#define CONFIG_RAMBOOT_SDCARD		1
+#endif
+
+#ifdef CONFIG_SPIFLASH
+#define CONFIG_RAMBOOT_SPIFLASH		1
+#endif
+
+#ifndef CONFIG_SYS_MONITOR_BASE
+#define CONFIG_SYS_MONITOR_BASE	CONFIG_SYS_TEXT_BASE	/* start of monitor */
+#endif
+
+/* High Level Configuration Options */
+#define CONFIG_BOOKE		1	/* BOOKE */
+#define CONFIG_E500		1	/* BOOKE e500 family */
+#define CONFIG_MPC85xx		1	/* MPC8540/60/55/41/48/P1020/P2020,etc*/
+#define CONFIG_P2020		1
+#define CONFIG_P2020COME	1
+#define CONFIG_FSL_ELBC		1	/* Enable eLBC Support */
+#define CONFIG_MP
+
+#define CONFIG_PCI		1	/* Enable PCI/PCIE */
+#if defined(CONFIG_PCI)
+#define CONFIG_PCIE1		1	/* PCIE controller 1 (slot 1) */
+#define CONFIG_PCIE2		1	/* PCIE controller 2 (slot 2) */
+#define CONFIG_PCIE3		1	/* PCIE controller 3 (slot 3) */
+
+#define CONFIG_FSL_PCI_INIT	1	/* Use common FSL init code */
+#define CONFIG_FSL_PCIE_RESET	1	/* need PCIe reset errata */
+#define CONFIG_SYS_PCI_64BIT	1	/* enable 64-bit PCI resources */
+#endif /* #if defined(CONFIG_PCI) */
+#define CONFIG_FSL_LAW		1	/* Use common FSL init code */
+#define CONFIG_TSEC_ENET		/* tsec ethernet support */
+#define CONFIG_ENV_OVERWRITE
+
+#if defined(CONFIG_PCI)
+#define CONFIG_E1000		1	/* E1000 pci Ethernet card */
+#endif
+
+#ifndef __ASSEMBLY__
+extern unsigned long get_board_ddr_clk(unsigned long dummy);
+extern unsigned long get_board_sys_clk(unsigned long dummy);
+#endif
+
+/*
+ * For P2020COME DDRCLK and SYSCLK are from the same oscillator
+ * For DA phase the SYSCLK is 66MHz
+ * For EA phase the SYSCLK is 100MHz
+ */
+#define CONFIG_DDR_CLK_FREQ	get_board_ddr_clk(0)
+#define CONFIG_SYS_CLK_FREQ	get_board_sys_clk(0)
+
+#define CONFIG_HWCONFIG
+
+/*
+ * These can be toggled for performance analysis, otherwise use default.
+ */
+#define CONFIG_L2_CACHE			/* toggle L2 cache */
+#define CONFIG_BTB			/* toggle branch prediction */
+
+#define CONFIG_ADDR_STREAMING		/* toggle addr streaming */
+
+#define CONFIG_ENABLE_36BIT_PHYS	1
+
+#ifdef CONFIG_PHYS_64BIT
+#define CONFIG_ADDR_MAP			1
+#define CONFIG_SYS_NUM_ADDR_MAP		16	/* number of TLB1 entries */
+#endif
+
+#define CONFIG_SYS_MEMTEST_START	0x00000000	/* memtest works on */
+#define CONFIG_SYS_MEMTEST_END		0x1fffffff
+#define CONFIG_PANIC_HANG	/* do not reset board on panic */
+
+
+
+
+
+
+
+ /*
+  * Config the L2 Cache as L2 SRAM
+  */
+#define CONFIG_SYS_INIT_L2_ADDR		0xf8f80000
+#ifdef CONFIG_PHYS_64BIT
+#define CONFIG_SYS_INIT_L2_ADDR_PHYS	0xff8f80000ull
+#else
+#define CONFIG_SYS_INIT_L2_ADDR_PHYS	CONFIG_SYS_INIT_L2_ADDR
+#endif
+#define CONFIG_SYS_L2_SIZE		(512 << 10)
+#define CONFIG_SYS_INIT_L2_END		(CONFIG_SYS_INIT_L2_ADDR \
+					+ CONFIG_SYS_L2_SIZE)
+
+#define CONFIG_SYS_CCSRBAR		0xffe00000
+#define CONFIG_SYS_CCSRBAR_PHYS_LOW	CONFIG_SYS_CCSRBAR
+
+/* DDR Setup */
+#define CONFIG_FSL_DDR3
+#define CONFIG_SPD_EEPROM		/* Use SPD EEPROM for DDR setup */
+#define CONFIG_DDR_SPD
+
+#define CONFIG_DDR_ECC
+#define CONFIG_ECC_INIT_VIA_DDRCONTROLLER
+#define CONFIG_MEM_INIT_VALUE		0xdeadbeef
+
+#define CONFIG_SYS_SDRAM_SIZE		2048ULL	/* DDR size on P2020COME */
+#define CONFIG_SYS_DDR_SDRAM_BASE	0x00000000
+#define CONFIG_SYS_SDRAM_BASE		CONFIG_SYS_DDR_SDRAM_BASE
+
+#define CONFIG_NUM_DDR_CONTROLLERS	1
+#define CONFIG_DIMM_SLOTS_PER_CTLR	1
+#define CONFIG_CHIP_SELECTS_PER_CTRL	2
+
+#define CONFIG_SYS_DDR_ERR_INT_EN	0x0000000d
+#define CONFIG_SYS_DDR_ERR_DIS		0x00000000
+#define CONFIG_SYS_DDR_SBE		0x00ff0000
+
+#define CONFIG_SYS_SPD_BUS_NUM		1
+#define SPD_EEPROM_ADDRESS		0x53
+
+/*
+ * Memory map
+ *
+ * 0x0000_0000	0x7fff_ffff	DDR3			2G Cacheable
+ * 0x8000_0000	0x9fff_ffff	PCI Express 3 Mem	1G non-cacheable
+ * 0xa000_0000	0xbfff_ffff	PCI Express 2 Mem	1G non-cacheable
+ * 0xc000_0000	0xdfff_ffff	PCI Express 1 Mem	1G non-cacheable
+ * 0xffc1_0000	0xffc1_ffff	PCI Express 3 IO	64K non-cacheable
+ * 0xffc2_0000	0xffc2_ffff	PCI Express 2 IO	64K non-cacheable
+ * 0xffc3_0000	0xffc3_ffff	PCI Express 1 IO	64K non-cacheable
+ *
+ * 0xffd0_0000	0xffd0_3fff	L1 for stack		16K Cacheable TLB0
+ * 0xffe0_0000	0xffef_ffff	CCSR			1M non-cacheable
+ */
+
+/*
+ * Local Bus Definitions
+ */
+
+/* There is no NOR Flash on P2020COME */
+#define CONFIG_SYS_NO_FLASH
+
+#define CONFIG_BOARD_EARLY_INIT_R	/* call board_early_init_r function */
+#define CONFIG_HWCONFIG
+
+#define CONFIG_SYS_INIT_RAM_LOCK	1
+#define CONFIG_SYS_INIT_RAM_ADDR	0xffd00000	/* stack in RAM */
+#ifdef CONFIG_PHYS_64BIT
+#define CONFIG_SYS_INIT_RAM_ADDR_PHYS_HIGH	0xf
+#define CONFIG_SYS_INIT_RAM_ADDR_PHYS_LOW	CONFIG_SYS_INIT_RAM_ADDR
+/* the assembler doesn't like typecast */
+#define CONFIG_SYS_INIT_RAM_ADDR_PHYS \
+	((CONFIG_SYS_INIT_RAM_ADDR_PHYS_HIGH * 1ull << 32) | \
+	  CONFIG_SYS_INIT_RAM_ADDR_PHYS_LOW)
+#else
+#define CONFIG_SYS_INIT_RAM_ADDR_PHYS	CONFIG_SYS_INIT_RAM_ADDR
+#define CONFIG_SYS_INIT_RAM_ADDR_PHYS_HIGH 0
+#define CONFIG_SYS_INIT_RAM_ADDR_PHYS_LOW CONFIG_SYS_INIT_RAM_ADDR_PHYS
+#endif
+#define CONFIG_SYS_INIT_RAM_SIZE	0x00004000
+
+#define CONFIG_SYS_GBL_DATA_OFFSET	(CONFIG_SYS_INIT_RAM_SIZE \
+						- GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET
+
+#define CONFIG_SYS_MONITOR_LEN		(256 * 1024)
+#define CONFIG_SYS_MALLOC_LEN		(1024 * 1024)
+
+/* Serial Port - controlled on board with jumper J8
+ * open - index 2
+ * shorted - index 1
+ */
+#define CONFIG_CONS_INDEX		1
+#define CONFIG_SYS_NS16550
+#define CONFIG_SYS_NS16550_SERIAL
+#define CONFIG_SYS_NS16550_REG_SIZE	1
+#define CONFIG_SYS_NS16550_CLK		get_bus_freq(0)
+
+#define CONFIG_SERIAL_MULTI	1 /* Enable both serial ports */
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV	/* determine from environment */
+
+#define CONFIG_SYS_BAUDRATE_TABLE   \
+	{300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 115200}
+
+#define CONFIG_SYS_NS16550_COM1	(CONFIG_SYS_CCSRBAR+0x4500)
+#define CONFIG_SYS_NS16550_COM2	(CONFIG_SYS_CCSRBAR+0x4600)
+
+/* Use the HUSH parser */
+#define CONFIG_SYS_HUSH_PARSER
+#ifdef CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
+#endif
+
+/*
+ * Pass open firmware flat tree
+ */
+#define CONFIG_OF_LIBFDT		1
+#define CONFIG_OF_BOARD_SETUP		1
+#define CONFIG_OF_STDOUT_VIA_ALIAS	1
+
+/* new uImage format support */
+#define CONFIG_FIT			1
+#define CONFIG_FIT_VERBOSE		1
+
+/* I2C */
+#define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
+#define CONFIG_HARD_I2C		/* I2C with hardware support */
+#undef  CONFIG_SOFT_I2C		/* I2C bit-banged */
+#define CONFIG_I2C_MULTI_BUS
+#define CONFIG_I2C_CMD_TREE
+#define CONFIG_SYS_I2C_SPEED		400000  /* I2C speed and slave address*/
+#define CONFIG_SYS_I2C_SLAVE		0x7F
+#define CONFIG_SYS_I2C_NOPROBES		{ {0, 0x29} }
+#define CONFIG_SYS_I2C_OFFSET		0x3000
+#define CONFIG_SYS_I2C2_OFFSET		0x3100
+
+/*
+ * I2C2 EEPROM
+ */
+#define CONFIG_ID_EEPROM
+#ifdef CONFIG_ID_EEPROM
+#define CONFIG_SYS_I2C_EEPROM_NXID
+#endif
+#define CONFIG_SYS_I2C_EEPROM_ADDR	0x50
+#define CONFIG_SYS_I2C_EEPROM_ADDR2	0x18
+#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN	1
+#define CONFIG_SYS_EEPROM_BUS_NUM	0
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS	10 /* and takes up to 10 msec */
+
+/*
+ * eSPI - Enhanced SPI
+ */
+#define CONFIG_FSL_ESPI
+#define CONFIG_SPI_FLASH
+#define CONFIG_SPI_FLASH_STMICRO
+#define CONFIG_CMD_SF
+#define CONFIG_SF_DEFAULT_SPEED		10000000
+#define CONFIG_SF_DEFAULT_MODE		SPI_MODE_0
+
+/*
+ * General PCI
+ * Memory space is mapped 1-1, but I/O space must start from 0.
+ */
+#if defined(CONFIG_PCI)
+
+/* controller 3, Slot 3, tgtid 3, Base address 8000 */
+#define CONFIG_SYS_PCIE3_MEM_VIRT	0x80000000
+#define CONFIG_SYS_PCIE3_MEM_BUS	0x80000000
+#define CONFIG_SYS_PCIE3_MEM_PHYS	0x80000000
+#define CONFIG_SYS_PCIE3_MEM_SIZE	0x20000000  /* 512M */
+#define CONFIG_SYS_PCIE3_IO_VIRT	0xffc10000
+#define CONFIG_SYS_PCIE3_IO_BUS		0x00000000
+#define CONFIG_SYS_PCIE3_IO_PHYS	0xffc10000
+#define CONFIG_SYS_PCIE3_IO_SIZE	0x00010000  /* 64k */
+
+/* controller 2, Slot 2, tgtid 2, Base address 9000 */
+#define CONFIG_SYS_PCIE2_MEM_VIRT	0xa0000000
+#define CONFIG_SYS_PCIE2_MEM_BUS	0xa0000000
+#define CONFIG_SYS_PCIE2_MEM_PHYS	0xa0000000
+#define CONFIG_SYS_PCIE2_MEM_SIZE	0x20000000  /* 512M */
+#define CONFIG_SYS_PCIE2_IO_VIRT	0xffc20000
+#define CONFIG_SYS_PCIE2_IO_BUS		0x00000000
+#define CONFIG_SYS_PCIE2_IO_PHYS	0xffc20000
+#define CONFIG_SYS_PCIE2_IO_SIZE	0x00010000  /* 64k */
+
+/* controller 1, Slot 1, tgtid 1, Base address a000 */
+#define CONFIG_SYS_PCIE1_MEM_VIRT	0xc0000000
+#define CONFIG_SYS_PCIE1_MEM_BUS	0xc0000000
+#define CONFIG_SYS_PCIE1_MEM_PHYS	0xc0000000
+#define CONFIG_SYS_PCIE1_MEM_SIZE	0x20000000  /* 512M */
+#define CONFIG_SYS_PCIE1_IO_VIRT	0xffc30000
+#define CONFIG_SYS_PCIE1_IO_BUS		0x00000000
+#define CONFIG_SYS_PCIE1_IO_PHYS	0xffc30000
+#define CONFIG_SYS_PCIE1_IO_SIZE	0x00010000  /* 64k */
+
+#define CONFIG_PCI_PNP			/* do pci plug-and-play */
+
+#undef CONFIG_EEPRO100
+#undef CONFIG_TULIP
+#undef CONFIG_RTL8139
+
+#ifdef CONFIG_RTL8139
+/* This macro is used by RTL8139 but not defined in PPC architecture */
+#define KSEG1ADDR(x)		(x)
+#define _IO_BASE		0x00000000
+#endif
+
+
+#define CONFIG_PCI_SCAN_SHOW		/* show pci devices on startup */
+#define CONFIG_DOS_PARTITION
+
+#endif	/* CONFIG_PCI */
+
+#if defined(CONFIG_TSEC_ENET)
+#define CONFIG_MII		1	/* MII PHY management */
+#define CONFIG_MII_DEFAULT_TSEC	1	/* Allow unregistered phys */
+#define CONFIG_TSEC1		1
+#define CONFIG_TSEC1_NAME	"eTSEC1"
+#define CONFIG_TSEC2		1
+#define CONFIG_TSEC2_NAME	"eTSEC2"
+#define CONFIG_TSEC3		1
+#define CONFIG_TSEC3_NAME	"eTSEC3"
+
+#define TSEC1_PHY_ADDR		0
+#define TSEC2_PHY_ADDR		2
+#define TSEC3_PHY_ADDR		1
+
+#undef CONFIG_VSC7385_ENET
+
+#define TSEC1_FLAGS		(TSEC_GIGABIT | TSEC_REDUCED)
+#define TSEC2_FLAGS		(TSEC_GIGABIT | TSEC_REDUCED)
+#define TSEC3_FLAGS		(TSEC_GIGABIT | TSEC_REDUCED)
+
+#define TSEC1_PHYIDX		0
+#define TSEC2_PHYIDX		0
+#define TSEC3_PHYIDX		0
+
+#define CONFIG_ETHPRIME		"eTSEC1"
+
+#define CONFIG_PHY_GIGE		1	/* Include GbE speed/duplex detection */
+
+#endif	/* CONFIG_TSEC_ENET */
+
+/*
+ * Environment
+ */
+#if defined(CONFIG_RAMBOOT_SDCARD)
+	#define CONFIG_ENV_IS_IN_MMC	1
+	#define CONFIG_ENV_SIZE		0x2000
+	#define CONFIG_SYS_MMC_ENV_DEV	0
+#elif defined(CONFIG_RAMBOOT_SPIFLASH)
+	#define CONFIG_ENV_IS_IN_SPI_FLASH
+	#define CONFIG_ENV_SPI_BUS	0
+	#define CONFIG_ENV_SPI_CS	0
+	#define CONFIG_ENV_SPI_MAX_HZ	10000000
+	#define CONFIG_ENV_SPI_MODE	0
+	#define CONFIG_ENV_OFFSET	0x100000	/* 1MB */
+	#define CONFIG_ENV_SECT_SIZE	0x10000
+	#define CONFIG_ENV_SIZE		0x2000
+#endif
+
+#define CONFIG_LOADS_ECHO		1
+#define CONFIG_SYS_LOADS_BAUD_CHANGE	1
+
+/*
+ * Command line configuration.
+ */
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_ELF
+#define CONFIG_CMD_I2C
+#define CONFIG_CMD_IRQ
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_SETEXPR
+#define CONFIG_CMD_REGINFO
+
+#if defined(CONFIG_PCI)
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_PCI
+#endif
+
+#undef CONFIG_WATCHDOG			/* watchdog disabled */
+
+#define CONFIG_MMC	1
+
+#ifdef CONFIG_MMC
+#define CONFIG_BOARD_EARLY_INIT_F	1	/* Call board_pre_init */
+#define CONFIG_CMD_MMC
+#define CONFIG_DOS_PARTITION
+#define CONFIG_FSL_ESDHC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_SYS_FSL_ESDHC_ADDR	CONFIG_SYS_MPC85xx_ESDHC_ADDR
+#define CONFIG_SYS_FSL_ESDHC_BROKEN_TIMEOUT
+#endif /* CONFIG_MMC */
+
+#define CONFIG_USB_EHCI
+
+#ifdef CONFIG_USB_EHCI
+#define CONFIG_CMD_USB
+#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
+#define CONFIG_USB_EHCI_FSL
+#define CONFIG_USB_STORAGE
+#define CONFIG_HAS_FSL_DR_USB
+#endif
+
+#if defined(CONFIG_MMC) || defined(CONFIG_USB_EHCI)
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+#endif
+
+/* Misc Extra Settings */
+#define CONFIG_SYS_64BIT_VSPRINTF	1
+#define CONFIG_SYS_64BIT_STRTOUL	1
+#define CONFIG_CMD_DHCP			1
+
+#define CONFIG_CMD_DATE			1
+#define CONFIG_RTC_M41T62		1
+#define CONFIG_SYS_RTC_BUS_NUM		1
+#define CONFIG_SYS_I2C_RTC_ADDR		0x68
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CONFIG_SYS_LONGHELP			/* undef to save memory */
+#define CONFIG_CMDLINE_EDITING			/* Command-line editing */
+#define CONFIG_AUTO_COMPLETE	1		/* add autocompletion support */
+#define CONFIG_SYS_LOAD_ADDR	0x2000000	/* default load address */
+#define CONFIG_SYS_PROMPT	"=> "		/* Monitor Command Prompt */
+#if defined(CONFIG_CMD_KGDB)
+#define CONFIG_SYS_CBSIZE	1024		/* Console I/O Buffer Size */
+#else
+#define CONFIG_SYS_CBSIZE	256		/* Console I/O Buffer Size */
+#endif
+#define CONFIG_SYS_PBSIZE	(CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
+						/* Print Buffer Size */
+#define CONFIG_SYS_MAXARGS	16		/* max number of command args */
+#define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE/* Boot Argument Buffer Size */
+#define CONFIG_SYS_HZ		1000		/* decrementer freq: 1ms tick */
+
+/*
+ * For booting Linux, the board info and command line data
+ * have to be in the first 64 MB of memory, since this is
+ * the maximum mapped by the Linux kernel during initialization.
+ */
+#define CONFIG_SYS_BOOTMAPSZ	(64 << 20)
+#define CONFIG_SYS_BOOTM_LEN	(64 << 20)
+
+#if defined(CONFIG_CMD_KGDB)
+#define CONFIG_KGDB_BAUDRATE	230400	/* speed to run kgdb serial port */
+#define CONFIG_KGDB_SER_INDEX	2	/* which serial port to use */
+#endif
+
+/*
+ * Environment Configuration
+ */
+
+/* The mac addresses for all ethernet interface */
+#if defined(CONFIG_TSEC_ENET)
+#define CONFIG_HAS_ETH0
+#define CONFIG_HAS_ETH1
+#define CONFIG_HAS_ETH2
+#define CONFIG_HAS_ETH3
+#endif
+
+#define CONFIG_HOSTNAME		unknown
+#define CONFIG_ROOTPATH		"/opt/nfsroot"
+#define CONFIG_BOOTFILE		"uImage"
+#define CONFIG_UBOOTPATH	u-boot.bin
+
+/* default location for tftp and bootm */
+#define CONFIG_LOADADDR		1000000
+
+#define CONFIG_BOOTDELAY	10	/* -1 disables auto-boot */
+#undef  CONFIG_BOOTARGS			/* the boot command will set bootargs */
+
+#define CONFIG_BAUDRATE		115200
+
+#define CONFIG_EXTRA_ENV_SETTINGS					\
+	"hwconfig=fsl_ddr:ecc=on\0"					\
+	"bootcmd=run sdboot\0"						\
+	"sdboot=setenv bootargs root=/dev/mmcblk0p2 rw "		\
+		"rootdelay=$rootdelaysecond console=$consoledev,$baudrate "\
+		"$othbootargs; mmcinfo; "				\
+		"ext2load mmc 0:2 $loadaddr /boot/$bootfile; "		\
+		"ext2load mmc 0:2 $fdtaddr /boot/$fdtfile; "		\
+		"bootm $loadaddr - $fdtaddr\0"				\
+	"sdfatboot=setenv bootargs root=/dev/ram rw "			\
+		"rootdelay=$rootdelaysecond console=$consoledev,$baudrate "\
+		"$othbootargs; mmcinfo; "				\
+		"fatload mmc 0:1 $loadaddr $bootfile; "			\
+		"fatload mmc 0:1 $fdtaddr $fdtfile; "			\
+		"fatload mmc 0:1 $ramdiskaddr $ramdiskfile; "		\
+		"bootm $loadaddr $ramdiskaddr $fdtaddr\0"		\
+	"usbboot=setenv bootargs root=/dev/sda1 rw "			\
+		"rootdelay=$rootdelaysecond console=$consoledev,$baudrate "\
+		"$othbootargs; "					\
+		"usb start; "						\
+		"ext2load usb 0:1 $loadaddr /boot/$bootfile; "		\
+		"ext2load usb 0:1 $fdtaddr /boot/$fdtfile; "		\
+		"bootm $loadaddr - $fdtaddr\0"				\
+	"usbfatboot=setenv bootargs root=/dev/ram rw "			\
+		"console=$consoledev,$baudrate $othbootargs; "		\
+		"usb start; "						\
+		"fatload usb 0:2 $loadaddr $bootfile; "			\
+		"fatload usb 0:2 $fdtaddr $fdtfile; "			\
+		"fatload usb 0:2 $ramdiskaddr $ramdiskfile; "		\
+		"bootm $loadaddr $ramdiskaddr $fdtaddr\0"		\
+	"usbext2boot=setenv bootargs root=/dev/ram rw "			\
+		"console=$consoledev,$baudrate $othbootargs; "		\
+		"usb start; "						\
+		"ext2load usb 0:4 $loadaddr $bootfile; "		\
+		"ext2load usb 0:4 $fdtaddr $fdtfile; "			\
+		"ext2load usb 0:4 $ramdiskaddr $ramdiskfile; "		\
+		"bootm $loadaddr $ramdiskaddr $fdtaddr\0"		\
+	"upgradespi=sf probe 0; "					\
+		"setenv startaddr 0; "					\
+		"setenv erasesize a0000; "				\
+		"tftp 1000000 $tftppath/$uboot_spi; "			\
+		"sf erase $startaddr $erasesize; "			\
+		"sf write 1000000 $startaddr $filesize; "		\
+		"sf erase 100000 120000\0"				\
+	"clearspienv=sf probe 0;sf erase 100000 20000\0"		\
+	"othbootargs=ramdisk_size=700000 cache-sram-size=0x10000\0"	\
+	"netdev=eth0\0"							\
+	"rootdelaysecond=15\0"						\
+	"uboot_nor=u-boot-nor.bin\0"					\
+	"uboot_spi=u-boot-p2020.spi\0"					\
+	"uboot_sd=u-boot-p2020.bin\0"					\
+	"consoledev=ttyS0\0"						\
+	"ramdiskaddr=2000000\0"						\
+	"ramdiskfile=rootfs-dev.ext2.img\0"				\
+	"fdtaddr=c00000\0"						\
+	"fdtfile=uImage-2.6.32-p2020.dtb\0"				\
+	"tftppath=p2020\0"
+
+#define CONFIG_HDBOOT							\
+	"setenv bootargs root=/dev/$bdev rw rootdelay=30 "		\
+	"console=$consoledev,$baudrate $othbootargs;"			\
+	"usb start;"							\
+	"ext2load usb 0:1 $loadaddr /boot/$bootfile;"			\
+	"ext2load usb 0:1 $fdtaddr /boot/$fdtfile;"			\
+	"bootm $loadaddr - $fdtaddr"
+
+#define CONFIG_NFSBOOTCOMMAND						\
+	"setenv bootargs root=/dev/nfs rw "				\
+	"nfsroot=$serverip:$rootpath "					\
+	"ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off "\
+	"console=$consoledev,$baudrate $othbootargs;"			\
+	"tftp $loadaddr $tftppath/$bootfile;"				\
+	"tftp $fdtaddr $tftppath/$fdtfile;"				\
+	"bootm $loadaddr - $fdtaddr"
+
+#define CONFIG_RAMBOOTCOMMAND						\
+	"setenv bootargs root=/dev/ram rw "				\
+	"console=$consoledev,$baudrate $othbootargs;"			\
+	"tftp $ramdiskaddr $tftppath/$ramdiskfile;"			\
+	"tftp $loadaddr $tftppath/$bootfile;"				\
+	"tftp $fdtaddr $tftppath/$fdtfile;"				\
+	"bootm $loadaddr $ramdiskaddr $fdtaddr"
+
+#define CONFIG_BOOTCOMMAND		CONFIG_HDBOOT
+
+#endif  /* __CONFIG_H */