bamboo.h

U-boot源码 ARM7启动代码

#undef CONFIG_DDR_ECC			/* don't use ECC			*/
#define CFG_SIMULATE_SPD_EEPROM	0xff	/* simulate spd eeprom on this address	*/
#define SPD_EEPROM_ADDRESS	{CFG_SIMULATE_SPD_EEPROM, 0x50, 0x51}
#define CFG_MBYTES_SDRAM	(64)	/* 64MB fixed size for early-sdram-init */
#define CONFIG_PROG_SDRAM_TLB
#undef  CFG_DRAM_TEST

/*-----------------------------------------------------------------------
 * I2C
 *----------------------------------------------------------------------*/
#define CONFIG_HARD_I2C		1	    /* I2C with hardware support	*/
#undef	CONFIG_SOFT_I2C			    /* I2C bit-banged		*/
#define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
#define CFG_I2C_SLAVE		0x7F

#define CFG_I2C_MULTI_EEPROMS
#define CFG_I2C_EEPROM_ADDR	(0xa8>>1)
#define CFG_I2C_EEPROM_ADDR_LEN 1
#define CFG_EEPROM_PAGE_WRITE_ENABLE
#define CFG_EEPROM_PAGE_WRITE_BITS 3
#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10

#ifdef CFG_ENV_IS_IN_EEPROM
#define CFG_ENV_SIZE		0x200	    /* Size of Environment vars */
#define CFG_ENV_OFFSET		0x0
#endif /* CFG_ENV_IS_IN_EEPROM */

#define CONFIG_PREBOOT	"echo;"	\
	"echo Type \"run flash_nfs\" to mount root filesystem over NFS;" \
	"echo"

#undef	CONFIG_BOOTARGS

#define	CONFIG_EXTRA_ENV_SETTINGS					\
	"netdev=eth0\0"							\
	"hostname=bamboo\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 ${bootargs} console=ttyS0,${baudrate}\0"\
	"flash_nfs=run nfsargs addip addtty;"				\
		"bootm ${kernel_addr}\0"				\
	"flash_self=run ramargs addip addtty;"				\
		"bootm ${kernel_addr} ${ramdisk_addr}\0"		\
	"net_nfs=tftp 200000 ${bootfile};run nfsargs addip addtty;"     \
	        "bootm\0"						\
	"rootpath=/opt/eldk/ppc_4xx\0"					\
	"bootfile=/tftpboot/bamboo/uImage\0"				\
	"kernel_addr=fff00000\0"					\
	"ramdisk_addr=fff10000\0"					\
	"initrd_high=30000000\0"					\
	"load=tftp 100000 /tftpboot/bamboo/u-boot.bin\0"		\
	"update=protect off fffa0000 ffffffff;era fffa0000 ffffffff;"	\
		"cp.b 100000 fffa0000 60000;"			        \
		"setenv filesize;saveenv\0"				\
	"upd=run load;run update\0"					\
	""
#define CONFIG_BOOTCOMMAND	"run flash_self"

#if 0
#define CONFIG_BOOTDELAY	-1	/* autoboot disabled		*/
#else
#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/
#endif

#define CONFIG_BAUDRATE		115200

#define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/
#define CFG_LOADS_BAUD_CHANGE	1	/* allow baudrate change	*/

#define CONFIG_MII		1	/* MII PHY management		*/
#define CONFIG_PHY_ADDR		0	/* PHY address, See schematics	*/
#define CONFIG_PHY1_ADDR        1

#ifndef CONFIG_BAMBOO_NAND
#define CONFIG_HAS_ETH1		1	/* add support for "eth1addr"	*/
#endif /* CONFIG_BAMBOO_NAND */

#define CFG_RX_ETH_BUFFER	32	/* Number of ethernet rx buffers & descriptors */

#define CONFIG_NETCONSOLE		/* include NetConsole support	*/
#define CONFIG_NET_MULTI        1       /* required for netconsole      */

/* Partitions */
#define CONFIG_MAC_PARTITION
#define CONFIG_DOS_PARTITION
#define CONFIG_ISO_PARTITION

#ifdef CONFIG_440EP
/* USB */
#define CONFIG_USB_OHCI
#define CONFIG_USB_STORAGE

/*Comment this out to enable USB 1.1 device*/
#define USB_2_0_DEVICE
#endif /*CONFIG_440EP*/


/*
 * BOOTP options
 */
#define CONFIG_BOOTP_BOOTFILESIZE
#define CONFIG_BOOTP_BOOTPATH
#define CONFIG_BOOTP_GATEWAY
#define CONFIG_BOOTP_HOSTNAME


/*
 * Command line configuration.
 */
#include <config_cmd_default.h>


#define CONFIG_CMD_ASKENV
#define CONFIG_CMD_DATE
#define CONFIG_CMD_DHCP
#define CONFIG_CMD_DIAG
#define CONFIG_CMD_ELF
#define CONFIG_CMD_EEPROM
#define CONFIG_CMD_I2C
#define CONFIG_CMD_IRQ
#define CONFIG_CMD_MII
#define CONFIG_CMD_NET
#define CONFIG_CMD_NFS
#define CONFIG_CMD_PCI
#define CONFIG_CMD_PING
#define CONFIG_CMD_REGINFO
#define CONFIG_CMD_SDRAM
#define CONFIG_CMD_USB
#define CONFIG_CMD_FAT
#define CONFIG_CMD_EXT2
#define CONFIG_CMD_SNTP

#ifdef CONFIG_BAMBOO_NAND
#define CONFIG_CMD_NAND
#endif


#define CONFIG_SUPPORT_VFAT

/*
 * Miscellaneous configurable options
 */
#define CFG_LONGHELP			/* undef to save memory		*/
#define CFG_PROMPT	        "=> "	/* Monitor Command Prompt	*/
#if defined(CONFIG_CMD_KGDB)
#define CFG_CBSIZE	        1024	/* Console I/O Buffer Size	*/
#else
#define CFG_CBSIZE	        256	/* Console I/O Buffer Size	*/
#endif
#define CFG_PBSIZE              (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
#define CFG_MAXARGS	        16	/* max number of command args	*/
#define CFG_BARGSIZE	        CFG_CBSIZE /* Boot Argument Buffer Size	*/

#define CFG_MEMTEST_START	0x0400000 /* memtest works on	        */
#define CFG_MEMTEST_END		0x0C00000 /* 4 ... 12 MB in DRAM	*/

#define CFG_LOAD_ADDR		0x100000	/* default load address */
#define CFG_EXTBDINFO		1	/* To use extended board_into (bd_t) */
#define CONFIG_LYNXKDI          1       /* support kdi files            */

#define CFG_HZ		        1000	/* decrementer freq: 1 ms ticks */

#define CONFIG_CMDLINE_EDITING	1	/* add command line history	*/
#define CONFIG_LOOPW            1       /* enable loopw command         */
#define CONFIG_MX_CYCLIC        1       /* enable mdc/mwc commands      */
#define CONFIG_ZERO_BOOTDELAY_CHECK	/* check for keypress on bootdelay==0 */
#define CONFIG_VERSION_VARIABLE 1	/* include version env variable */

/*-----------------------------------------------------------------------
 * PCI stuff
 *-----------------------------------------------------------------------
 */
/* General PCI */
#define CONFIG_PCI			/* include pci support	        */
#undef  CONFIG_PCI_PNP			/* do (not) pci plug-and-play   */
#define CONFIG_PCI_SCAN_SHOW            /* show pci devices on startup  */
#define CFG_PCI_TARGBASE        0x80000000 /* PCIaddr mapped to CFG_PCI_MEMBASE*/

/* Board-specific PCI */
#define CFG_PCI_TARGET_INIT
#define CFG_PCI_MASTER_INIT

#define CFG_PCI_SUBSYS_VENDORID 0x10e8	/* AMCC */
#define CFG_PCI_SUBSYS_ID       0xcafe	/* Whatever */

/*
 * 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 */

/*-----------------------------------------------------------------------
 * Cache Configuration
 */
#define CFG_DCACHE_SIZE		(32<<10) /* For AMCC 440 CPUs			*/
#define CFG_CACHELINE_SIZE	32	/* ...			*/
#if defined(CONFIG_CMD_KGDB)
#define CFG_CACHELINE_SHIFT	5	/* log base 2 of the above value	*/
#endif

/*
 * Internal Definitions
 *
 * Boot Flags
 */
#define BOOTFLAG_COLD	0x01		/* Normal Power-On: Boot from FLASH	*/
#define BOOTFLAG_WARM	0x02		/* Software reboot			*/

#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
#endif	/* __CONFIG_H */