mpc837xerdb.h

uboot详细解读可用启动引导LINUX2.6内核

/* I2C */
#define CONFIG_HARD_I2C		/* I2C with hardware support */
#undef	CONFIG_SOFT_I2C		/* I2C bit-banged */
#define CONFIG_FSL_I2C
#define CFG_I2C_SPEED		400000 /* I2C speed and slave address */
#define CFG_I2C_SLAVE		0x7F
#define CFG_I2C_NOPROBES	{0x51} /* Don't probe these addrs */
#define CFG_I2C_OFFSET		0x3000
#define CFG_I2C2_OFFSET		0x3100

/*
 * Config on-board RTC
 */
#define CONFIG_RTC_DS1374	/* use ds1374 rtc via i2c */
#define CFG_I2C_RTC_ADDR	0x68 /* at address 0x68 */

/*
 * General PCI
 * Addresses are mapped 1-1.
 */
#define CFG_PCI_MEM_BASE	0x80000000
#define CFG_PCI_MEM_PHYS	CFG_PCI_MEM_BASE
#define CFG_PCI_MEM_SIZE	0x10000000 /* 256M */
#define CFG_PCI_MMIO_BASE	0x90000000
#define CFG_PCI_MMIO_PHYS	CFG_PCI_MMIO_BASE
#define CFG_PCI_MMIO_SIZE	0x10000000 /* 256M */
#define CFG_PCI_IO_BASE		0x00000000
#define CFG_PCI_IO_PHYS		0xE0300000
#define CFG_PCI_IO_SIZE		0x100000 /* 1M */

#define CFG_PCI_SLV_MEM_LOCAL	CFG_SDRAM_BASE
#define CFG_PCI_SLV_MEM_BUS	0x00000000
#define CFG_PCI_SLV_MEM_SIZE	0x80000000

#ifdef CONFIG_PCI
#define CONFIG_NET_MULTI
#define CONFIG_PCI_PNP		/* do pci plug-and-play */

#undef CONFIG_PCI_SCAN_SHOW	/* show pci devices on startup */
#define CFG_PCI_SUBSYS_VENDORID 0x1957	/* Freescale */
#endif	/* CONFIG_PCI */

/*
 * TSEC
 */
#ifdef CONFIG_TSEC_ENET

#define CONFIG_NET_MULTI
#define CONFIG_GMII			/* MII PHY management */

#define CONFIG_TSEC1

#ifdef CONFIG_TSEC1
#define CONFIG_HAS_ETH0
#define CONFIG_TSEC1_NAME		"TSEC0"
#define CFG_TSEC1_OFFSET		0x24000
#define TSEC1_PHY_ADDR			2
#define TSEC1_FLAGS			(TSEC_GIGABIT | TSEC_REDUCED)
#define TSEC1_PHYIDX			0
#endif

#ifdef CONFIG_TSEC2
#define CONFIG_HAS_ETH1
#define CONFIG_TSEC2_NAME		"TSEC1"
#define CFG_TSEC2_OFFSET		0x25000
#define TSEC2_PHY_ADDR			0x1c
#define TSEC2_FLAGS			(TSEC_GIGABIT | TSEC_REDUCED)
#define TSEC2_PHYIDX			0
#endif

/* Options are: TSEC[0-1] */
#define CONFIG_ETHPRIME			"TSEC0"

#endif

/*
 * SATA
 */
#define CONFIG_LIBATA
#define CONFIG_FSL_SATA

#define CFG_SATA_MAX_DEVICE	2
#define CONFIG_SATA1
#define CFG_SATA1_OFFSET	0x18000
#define CFG_SATA1		(CFG_IMMR + CFG_SATA1_OFFSET)
#define CFG_SATA1_FLAGS		FLAGS_DMA
#define CONFIG_SATA2
#define CFG_SATA2_OFFSET	0x19000
#define CFG_SATA2		(CFG_IMMR + CFG_SATA2_OFFSET)
#define CFG_SATA2_FLAGS		FLAGS_DMA

#ifdef CONFIG_FSL_SATA
#define CONFIG_LBA48
#define CONFIG_CMD_SATA
#define CONFIG_DOS_PARTITION
#define CONFIG_CMD_EXT2
#endif

/*
 * Environment
 */
#ifndef CFG_RAMBOOT
	#define CFG_ENV_IS_IN_FLASH	1
	#define CFG_ENV_ADDR		(CFG_MONITOR_BASE+CFG_MONITOR_LEN)
	#define CFG_ENV_SECT_SIZE	0x10000	/* 64K (one sector) for env */
	#define CFG_ENV_SIZE		0x4000
#else
	#define CFG_NO_FLASH		1	/* Flash is not usable now */
	#define CFG_ENV_IS_NOWHERE	1	/* Store ENV in memory only */
	#define CFG_ENV_ADDR		(CFG_MONITOR_BASE-0x1000)
	#define CFG_ENV_SIZE		0x2000
#endif

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

/*
 * 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_PING
#define CONFIG_CMD_I2C
#define CONFIG_CMD_MII
#define CONFIG_CMD_DATE

#if defined(CONFIG_PCI)
#define CONFIG_CMD_PCI
#endif

#if defined(CFG_RAMBOOT)
#undef CONFIG_CMD_ENV
#undef CONFIG_CMD_LOADS
#endif

#define CONFIG_CMDLINE_EDITING	1	/* add command line history */

#undef CONFIG_WATCHDOG		/* watchdog disabled */

/*
 * Miscellaneous configurable options
 */
#define CFG_LONGHELP		/* undef to save memory */
#define CFG_LOAD_ADDR		0x2000000 /* default load address */
#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_HZ		1000		/* decrementer freq: 1ms ticks */

/*
 * 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 */

/*
 * Core HID Setup
 */
#define CFG_HID0_INIT		0x000000000
#define CFG_HID0_FINAL		HID0_ENABLE_MACHINE_CHECK
#define CFG_HID2		HID2_HBE

/*
 * MMU Setup
 */

#define CONFIG_HIGH_BATS	1	/* High BATs supported */

/* DDR: cache cacheable */
#define CFG_SDRAM_LOWER		CFG_SDRAM_BASE
#define CFG_SDRAM_UPPER		(CFG_SDRAM_BASE + 0x10000000)

#define CFG_IBAT0L	(CFG_SDRAM_LOWER | BATL_PP_10 | BATL_MEMCOHERENCE)
#define CFG_IBAT0U	(CFG_SDRAM_LOWER | BATU_BL_256M | BATU_VS | BATU_VP)
#define CFG_DBAT0L	CFG_IBAT0L
#define CFG_DBAT0U	CFG_IBAT0U

#define CFG_IBAT1L	(CFG_SDRAM_UPPER | BATL_PP_10 | BATL_MEMCOHERENCE)
#define CFG_IBAT1U	(CFG_SDRAM_UPPER | BATU_BL_256M | BATU_VS | BATU_VP)
#define CFG_DBAT1L	CFG_IBAT1L
#define CFG_DBAT1U	CFG_IBAT1U

/* IMMRBAR, PCI IO and NAND: cache-inhibit and guarded */
#define CFG_IBAT2L	(CFG_IMMR | BATL_PP_10 | \
			BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
#define CFG_IBAT2U	(CFG_IMMR | BATU_BL_8M | BATU_VS | BATU_VP)
#define CFG_DBAT2L	CFG_IBAT2L
#define CFG_DBAT2U	CFG_IBAT2U

/* L2 Switch: cache-inhibit and guarded */
#define CFG_IBAT3L	(CFG_VSC7385_BASE | BATL_PP_10 | \
			BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
#define CFG_IBAT3U	(CFG_VSC7385_BASE | BATU_BL_128K | BATU_VS | BATU_VP)
#define CFG_DBAT3L	CFG_IBAT3L
#define CFG_DBAT3U	CFG_IBAT3U

/* FLASH: icache cacheable, but dcache-inhibit and guarded */
#define CFG_IBAT4L	(CFG_FLASH_BASE | BATL_PP_10 | BATL_MEMCOHERENCE)
#define CFG_IBAT4U	(CFG_FLASH_BASE | BATU_BL_32M | BATU_VS | BATU_VP)
#define CFG_DBAT4L	(CFG_FLASH_BASE | BATL_PP_10 | \
			BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
#define CFG_DBAT4U	CFG_IBAT4U

/* Stack in dcache: cacheable, no memory coherence */
#define CFG_IBAT5L	(CFG_INIT_RAM_ADDR | BATL_PP_10)
#define CFG_IBAT5U	(CFG_INIT_RAM_ADDR | BATU_BL_128K | BATU_VS | BATU_VP)
#define CFG_DBAT5L	CFG_IBAT5L
#define CFG_DBAT5U	CFG_IBAT5U

#ifdef CONFIG_PCI
/* PCI MEM space: cacheable */
#define CFG_IBAT6L	(CFG_PCI_MEM_PHYS | BATL_PP_10 | BATL_MEMCOHERENCE)
#define CFG_IBAT6U	(CFG_PCI_MEM_PHYS | BATU_BL_256M | BATU_VS | BATU_VP)
#define CFG_DBAT6L	CFG_IBAT6L
#define CFG_DBAT6U	CFG_IBAT6U
/* PCI MMIO space: cache-inhibit and guarded */
#define CFG_IBAT7L	(CFG_PCI_MMIO_PHYS | BATL_PP_10 | \
			BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
#define CFG_IBAT7U	(CFG_PCI_MMIO_PHYS | BATU_BL_256M | BATU_VS | BATU_VP)
#define CFG_DBAT7L	CFG_IBAT7L
#define CFG_DBAT7U	CFG_IBAT7U
#else
#define CFG_IBAT6L	(0)
#define CFG_IBAT6U	(0)
#define CFG_IBAT7L	(0)
#define CFG_IBAT7U	(0)
#define CFG_DBAT6L	CFG_IBAT6L
#define CFG_DBAT6U	CFG_IBAT6U
#define CFG_DBAT7L	CFG_IBAT7L
#define CFG_DBAT7U	CFG_IBAT7U
#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 of kgdb serial port */
#define CONFIG_KGDB_SER_INDEX	2	/* which serial port to use */
#endif

/*
 * Environment Configuration
 */
#define CONFIG_ENV_OVERWRITE

#ifdef CONFIG_HAS_ETH0
#define CONFIG_ETHADDR		00:04:9f:ef:04:01
#endif

#ifdef CONFIG_HAS_ETH1
#define CONFIG_ETH1ADDR		00:04:9f:ef:04:02
#endif

#define CONFIG_HAS_FSL_DR_USB

#define CONFIG_IPADDR		10.0.0.2
#define CONFIG_SERVERIP		10.0.0.1
#define CONFIG_GATEWAYIP	10.0.0.1
#define CONFIG_NETMASK		255.0.0.0
#define CONFIG_NETDEV		eth1

#define CONFIG_HOSTNAME		mpc837x_rdb
#define CONFIG_ROOTPATH		/nfsroot
#define CONFIG_RAMDISKFILE	rootfs.ext2.gz.uboot
#define CONFIG_BOOTFILE		uImage
#define CONFIG_UBOOTPATH	u-boot.bin	/* U-Boot image on TFTP server */
#define CONFIG_FDTFILE		mpc8379_rdb.dtb

#define CONFIG_LOADADDR		500000	/* default location for tftp and bootm */
#define CONFIG_BOOTDELAY	-1	/* -1 disables auto-boot */
#define CONFIG_BAUDRATE		115200

#define XMK_STR(x)	#x
#define MK_STR(x)	XMK_STR(x)

#define CONFIG_EXTRA_ENV_SETTINGS \
	"netdev=" MK_STR(CONFIG_NETDEV) "\0"				\
	"uboot=" MK_STR(CONFIG_UBOOTPATH) "\0"				\
	"tftpflash=tftp $loadaddr $uboot;"				\
		"protect off " MK_STR(TEXT_BASE) " +$filesize; "	\
		"erase " MK_STR(TEXT_BASE) " +$filesize; "		\
		"cp.b $loadaddr " MK_STR(TEXT_BASE) " $filesize; "	\
		"protect on " MK_STR(TEXT_BASE) " +$filesize; "		\
		"cmp.b $loadaddr " MK_STR(TEXT_BASE) " $filesize\0"	\
	"fdtaddr=400000\0"						\
	"fdtfile=" MK_STR(CONFIG_FDTFILE) "\0"				\
	"ramdiskaddr=1000000\0"						\
	"ramdiskfile=" MK_STR(CONFIG_RAMDISKFILE) "\0"			\
	"console=ttyS0\0"						\
	"setbootargs=setenv bootargs "					\
		"root=$rootdev rw console=$console,$baudrate $othbootargs\0" \
	"setipargs=setenv bootargs nfsroot=$serverip:$rootpath "	\
		"ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off " \
		"root=$rootdev rw console=$console,$baudrate $othbootargs\0"

#define CONFIG_NFSBOOTCOMMAND						\
	"setenv rootdev /dev/nfs;"					\
	"run setbootargs;"						\
	"run setipargs;"						\
	"tftp $loadaddr $bootfile;"					\
	"tftp $fdtaddr $fdtfile;"					\
	"bootm $loadaddr - $fdtaddr"

#define CONFIG_RAMBOOTCOMMAND						\
	"setenv rootdev /dev/ram;"					\
	"run setbootargs;"						\
	"tftp $ramdiskaddr $ramdiskfile;"				\
	"tftp $loadaddr $bootfile;"					\
	"tftp $fdtaddr $fdtfile;"					\
	"bootm $loadaddr $ramdiskaddr $fdtaddr"

#undef MK_STR
#undef XMK_STR

#endif	/* __CONFIG_H */