sacsng.h

AT91RM9200的完整启动代码：包括loader, boot及U-boot三部分均已编译通过！欢迎下载使用！

    "cp.b 40000000 60000000 40000; " \
    "protect on 60000000 6003FFFF\0" \
"zapenv="\
    "protect off 40040000 4004FFFF; " \
    "erase 40040000 4004FFFF; " \
    "protect on 40040000 4004FFFF\0" \
"zapotherenv="\
    "protect off 60040000 6004FFFF; " \
    "erase 60040000 6004FFFF; " \
    "protect on 60040000 6004FFFF\0" \
"root-on-initrd="\
    "setenv bootcmd "\
    "version\\;" \
    "echo\\;" \
    "bootp\\;" \
    "setenv bootargs root=/dev/ram0 rw quiet " \
    "ip=\\$(ipaddr):\\$(serverip):\\$(gatewayip):\\$(netmask):\\$(hostname)::off\\;" \
    "run boot-hook\\;" \
    "bootm\0" \
"root-on-initrd-debug="\
    "setenv bootcmd "\
    "version\\;" \
    "echo\\;" \
    "bootp\\;" \
    "setenv bootargs root=/dev/ram0 rw debug " \
    "ip=\\$(ipaddr):\\$(serverip):\\$(gatewayip):\\$(netmask):\\$(hostname)::off\\;" \
    "run debug-hook\\;" \
    "run boot-hook\\;" \
    "bootm\0" \
"root-on-nfs="\
    "setenv bootcmd "\
    "version\\;" \
    "echo\\;" \
    "bootp\\;" \
    "setenv bootargs root=/dev/nfs rw quiet " \
    "nfsroot=\\$(serverip):\\$(rootpath) " \
    "ip=\\$(ipaddr):\\$(serverip):\\$(gatewayip):\\$(netmask):\\$(hostname)::off\\;" \
    "run boot-hook\\;" \
    "bootm\0" \
"root-on-nfs-debug="\
    "setenv bootcmd "\
    "version\\;" \
    "echo\\;" \
    "bootp\\;" \
    "setenv bootargs root=/dev/nfs rw debug " \
    "nfsroot=\\$(serverip):\\$(rootpath) " \
    "ip=\\$(ipaddr):\\$(serverip):\\$(gatewayip):\\$(netmask):\\$(hostname)::off\\;" \
    "run debug-hook\\;" \
    "run boot-hook\\;" \
    "bootm\0" \
"debug-checkout="\
    "setenv checkhostname;" \
    "setenv ethaddr 00:09:70:00:00:01;" \
    "bootp;" \
    "setenv bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) debug " \
    "ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;" \
    "run debug-hook;" \
    "run boot-hook;" \
    "bootm\0" \
"debug-hook="\
    "echo ipaddr    $(ipaddr);" \
    "echo serverip  $(serverip);" \
    "echo gatewayip $(gatewayip);" \
    "echo netmask   $(netmask);" \
    "echo hostname  $(hostname)\0" \
"ana=run adc ; run dac\0" \
"adc=run adc-12 ; run adc-34\0" \
"adc-12=echo ### ADC-12 ; imd.b e 81 e\0" \
"adc-34=echo ### ADC-34 ; imd.b f 81 e\0" \
"dac=echo ### DAC ; imd.b 11 81 5\0" \
"boot-hook=run ana\0"

/* What should the console's baud rate be? */
#define CONFIG_BAUDRATE		9600

/* Ethernet MAC address */
#define CONFIG_ETHADDR		00:09:70:00:00:00

/* The default Ethernet MAC address can be overwritten just once  */
#ifdef  CONFIG_ETHADDR
#define CONFIG_OVERWRITE_ETHADDR_ONCE 1
#endif

/*
 * Define this to do some miscellaneous board-specific initialization.
 */
#define CONFIG_MISC_INIT_R

/* Set to a positive value to delay for running BOOTCOMMAND */
#define CONFIG_BOOTDELAY	1	/* autoboot after 1 second */

/* Be selective on what keys can delay or stop the autoboot process
 *     To stop	use: " "
 */
#define CONFIG_AUTOBOOT_KEYED
#define CONFIG_AUTOBOOT_PROMPT "Autobooting...\n"
#define CONFIG_AUTOBOOT_STOP_STR	" "
#undef  CONFIG_AUTOBOOT_DELAY_STR
#define CONFIG_ZERO_BOOTDELAY_CHECK
#define DEBUG_BOOTKEYS		0

/* Define a command string that is automatically executed when no character
 * is read on the console interface withing "Boot Delay" after reset.
 */
#define CONFIG_BOOT_ROOT_INITRD 0	/* Use ram disk for the root file system */
#define CONFIG_BOOT_ROOT_NFS	1	/* Use a NFS mounted root file system */

#if CONFIG_BOOT_ROOT_INITRD
#define CONFIG_BOOTCOMMAND \
	"version;" \
	"echo;" \
	"bootp;" \
	"setenv bootargs root=/dev/ram0 rw quiet " \
	"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;" \
	"run boot-hook;" \
	"bootm"
#endif /* CONFIG_BOOT_ROOT_INITRD */

#if CONFIG_BOOT_ROOT_NFS
#define CONFIG_BOOTCOMMAND \
	"version;" \
	"echo;" \
	"bootp;" \
	"setenv bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) quiet " \
	"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;" \
	"run boot-hook;" \
	"bootm"
#endif /* CONFIG_BOOT_ROOT_NFS */

#define CONFIG_BOOTP_RANDOM_DELAY       /* Randomize the BOOTP retry delay */

#define CONFIG_BOOTP_RETRY_COUNT 0x40000000 /* # of timeouts before giving up */

/* Add support for a few extra bootp options like:
 *	- File size
 *	- DNS
 */
#define CONFIG_BOOTP_MASK	(CONFIG_BOOTP_DEFAULT | \
				 CONFIG_BOOTP_BOOTFILESIZE | \
				 CONFIG_BOOTP_DNS)

/* undef this to save memory */
#define CFG_LONGHELP

/* Monitor Command Prompt */
#define CFG_PROMPT		"=> "

#undef  CFG_HUSH_PARSER
#ifdef  CFG_HUSH_PARSER
#define CFG_PROMPT_HUSH_PS2     "> "
#endif

/* When CONFIG_TIMESTAMP is selected, the timestamp (date and time)
 * of an image is printed by image commands like bootm or iminfo.
 */
#define CONFIG_TIMESTAMP

/* What U-Boot subsytems do you want enabled? */
#ifdef CONFIG_ETHER_ON_FCC
# define CONFIG_COMMANDS	(((CONFIG_CMD_DFL & ~(CFG_CMD_KGDB))) | \
				CFG_CMD_ELF	| \
				CFG_CMD_ASKENV	| \
				CFG_CMD_ECHO	| \
				CFG_CMD_I2C	| \
				CFG_CMD_SPI	| \
				CFG_CMD_SDRAM   | \
				CFG_CMD_REGINFO | \
				CFG_CMD_IMMAP	| \
				CFG_CMD_MII	)
#else
# define CONFIG_COMMANDS	(((CONFIG_CMD_DFL & ~(CFG_CMD_KGDB))) | \
				CFG_CMD_ELF	| \
				CFG_CMD_ASKENV	| \
				CFG_CMD_ECHO	| \
				CFG_CMD_I2C	| \
				CFG_CMD_SPI	| \
				CFG_CMD_SDRAM   | \
				CFG_CMD_REGINFO | \
				CFG_CMD_IMMAP	)
#endif /* CONFIG_ETHER_ON_FCC */

/* Where do the internal registers live? */
#define CFG_IMMR		0xF0000000

/*****************************************************************************
 *
 * You should not have to modify any of the following settings
 *
 *****************************************************************************/

#define CONFIG_MPC8260		1	/* This is an MPC8260 CPU   */
#define CONFIG_SBC8260		1	/* on an EST SBC8260 Board  */
#define CONFIG_SACSng		1	/* munged for the SACSng */

/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
#include <cmd_confdefs.h>

/*
 * Miscellaneous configurable options
 */
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
#  define CFG_CBSIZE		1024	/* Console I/O Buffer Size	     */
#else
#  define CFG_CBSIZE		256	/* Console I/O Buffer Size	     */
#endif

/* Print Buffer Size */
#define CFG_PBSIZE	  (CFG_CBSIZE + sizeof(CFG_PROMPT)+16)

#define CFG_MAXARGS		32	/* max number of command args	*/

#define CFG_BARGSIZE		CFG_CBSIZE /* Boot Argument Buffer Size	   */

#define CFG_LOAD_ADDR		0x400000   /* default load address */
#define CFG_HZ			1000	/* decrementer freq: 1 ms ticks */

#define CFG_ALT_MEMTEST                 /* Select full-featured memory test */
#define CFG_MEMTEST_START	0x2000	/* memtest works from the end of */
					/* the exception vector table */
					/* to the end of the DRAM  */
					/* less monitor and malloc area */
#define CFG_STACK_USAGE		0x10000 /* Reserve 64k for the stack usage */
#define CFG_MEM_END_USAGE	( CFG_MONITOR_LEN \
				+ CFG_MALLOC_LEN \
				+ CFG_ENV_SECT_SIZE \
				+ CFG_STACK_USAGE )

#define CFG_MEMTEST_END		( CFG_SDRAM_SIZE * 1024 * 1024 \
				- CFG_MEM_END_USAGE )

/* valid baudrates */
#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }

/*
 * Low Level Configuration Settings
 * (address mappings, register initial values, etc.)
 * You should know what you are doing if you make changes here.
 */

#define CFG_FLASH_BASE	CFG_FLASH0_BASE
#define CFG_FLASH_SIZE	CFG_FLASH0_SIZE
#define CFG_SDRAM_BASE	CFG_SDRAM0_BASE
#define CFG_SDRAM_SIZE	CFG_SDRAM0_SIZE

/*-----------------------------------------------------------------------
 * Hard Reset Configuration Words
 */
#if defined(CFG_SBC_BOOT_LOW)
#  define  CFG_SBC_HRCW_BOOT_FLAGS  (HRCW_CIP | HRCW_BMS)
#else
#  define  CFG_SBC_HRCW_BOOT_FLAGS  (0)
#endif /* defined(CFG_SBC_BOOT_LOW) */

/* get the HRCW ISB field from CFG_IMMR */
#define CFG_SBC_HRCW_IMMR	( ((CFG_IMMR & 0x10000000) >> 10) | \
				  ((CFG_IMMR & 0x01000000) >>  7) | \
				  ((CFG_IMMR & 0x00100000) >>  4) )

#define CFG_HRCW_MASTER		( HRCW_BPS10				| \
				  HRCW_DPPC11				| \
				  CFG_SBC_HRCW_IMMR			| \
				  HRCW_MMR00				| \
				  HRCW_LBPC11				| \
				  HRCW_APPC10				| \
				  HRCW_CS10PC00				| \
				  (CFG_SBC_MODCK_H & HRCW_MODCK_H1111)	| \
				  CFG_SBC_HRCW_BOOT_FLAGS )

/* no slaves */
#define CFG_HRCW_SLAVE1		0
#define CFG_HRCW_SLAVE2		0
#define CFG_HRCW_SLAVE3		0
#define CFG_HRCW_SLAVE4		0
#define CFG_HRCW_SLAVE5		0
#define CFG_HRCW_SLAVE6		0
#define CFG_HRCW_SLAVE7		0

/*-----------------------------------------------------------------------
 * Definitions for initial stack pointer and data area (in DPRAM)
 */
#define CFG_INIT_RAM_ADDR	CFG_IMMR
#define CFG_INIT_RAM_END	0x4000	/* End of used area in DPRAM	*/
#define CFG_GBL_DATA_SIZE	128	/* bytes reserved for initial data */
#define CFG_GBL_DATA_OFFSET	(CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
#define CFG_INIT_SP_OFFSET	CFG_GBL_DATA_OFFSET

/*-----------------------------------------------------------------------
 * Start addresses for the final memory configuration
 * (Set up by the startup code)
 * Please note that CFG_SDRAM_BASE _must_ start at 0
 * Note also that the logic that sets CFG_RAMBOOT is platform dependent.
 */
#define CFG_MONITOR_BASE	CFG_FLASH0_BASE

#if (CFG_MONITOR_BASE < CFG_FLASH_BASE)
#  define CFG_RAMBOOT
#endif

#define CFG_MONITOR_LEN		(256 << 10)	/* Reserve 256 kB for Monitor	*/
#define CFG_MALLOC_LEN		(128 << 10)	/* Reserve 128 kB for malloc()	*/

/*
 * For booting Linux, the board info and command line data
 * have to be in the first 8 MB of memory, since this is
 * the maximum mapped by the Linux kernel during initialization.
 */
#define CFG_BOOTMAPSZ		(8 << 20)	/* Initial Memory map for Linux */

/*-----------------------------------------------------------------------
 * FLASH and environment organization
 */

#define CFG_FLASH_CFI		1	/* Flash is CFI conformant		*/
#undef  CFG_FLASH_PROTECTION		/* use hardware protection		*/
#define CFG_MAX_FLASH_BANKS	2	/* max number of memory banks		*/
#define CFG_MAX_FLASH_SECT	(64+4)	/* max number of sectors on one chip	*/

#define CFG_FLASH_ERASE_TOUT	8000	/* Timeout for Flash Erase (in ms)	*/
#define CFG_FLASH_WRITE_TOUT	1	/* Timeout for Flash Write (in ms)	*/

#ifndef CFG_RAMBOOT
#  define CFG_ENV_IS_IN_FLASH	1

#  ifdef CFG_ENV_IN_OWN_SECT
#    define CFG_ENV_ADDR	(CFG_MONITOR_BASE + CFG_MONITOR_LEN)
#    define CFG_ENV_SECT_SIZE	0x10000
#  else
#    define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_MONITOR_LEN - CFG_ENV_SECT_SIZE)
#    define CFG_ENV_SIZE	0x1000	/* Total Size of Environment Sector	*/
#    define CFG_ENV_SECT_SIZE	0x10000 /* see README - env sect real size	*/
#  endif /* CFG_ENV_IN_OWN_SECT */

#else
#  define CFG_ENV_IS_IN_NVRAM	1
#  define CFG_ENV_ADDR		(CFG_MONITOR_BASE - 0x1000)
#  define CFG_ENV_SIZE		0x200
#endif /* CFG_RAMBOOT */