svm_sc8xx.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！

/*
 * (C) Copyright 2000, 2001, 2002
 * Wolfgang Denk, DENX Software Engineering, [e-mail].
 *
 * 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
 */

/*
 * board/config.h - configuration options, board specific,
 *                  for SinoVee Microsystems SC8xx series SBC
 *                  http://www.fel.com.cn (Chinese)
 *                  http://www.sinovee.com (English)
 */

#ifndef __CONFIG_H
#define __CONFIG_H

/* Custom configuration */
/* SC823,SC850,SC860SAR, FEL8xx-AT(823/850/860) */
/* SC85T,SC860T, FEL8xx-AT(855T/860T) */
/*#define CONFIG_FEL8xx_AT */
/*#define CONFIG_LCD */
/* if core > 50MHz , un-comment CONFIG_BUS_DIV2 */
/* #define CONFIG_50MHz */
/* #define CONFIG_66MHz */
/* #define CONFIG_75MHz */
#define CONFIG_80MHz
/*#define CONFIG_100MHz */
/* #define CONFIG_BUS_DIV2	1 */
/* for BOOT device port size */
/* #define CONFIG_BOOT_8B */
#define CONFIG_BOOT_16B
/* #define CONFIG_BOOT_32B */
/* #define CONFIG_CAN_DRIVER */
/* #define DEBUG */
#define CONFIG_FEC_ENET

/* #define CONFIG_SDRAM_16M */
#define CONFIG_SDRAM_32M
/* #define CONFIG_SDRAM_64M */
#define CFG_RESET_ADDRESS 0xffffffff
/*
 * High Level Configuration Options
 * (easy to change)
 */

/* #define CONFIG_MPC823		1 */
/* #define CONFIG_MPC850		1 */
#define CONFIG_MPC855		1
/* #define CONFIG_MPC860		1 */
/* #define CONFIG_MPC860T		1 */

#undef	CONFIG_WATCHDOG			/* watchdog */

#define CONFIG_SVM_SC8xx		1	/* ...on SVM SC8xx series 	*/

#ifdef	CONFIG_LCD			/* with LCD controller ?	*/
/* #define CONFIG_NEC_NL6648BC20 1 / * use NEC NL6648BC20 display	*/
#endif

#define	CONFIG_8xx_CONS_SMC1	1	/* Console is on SMC1		*/
#undef	CONFIG_8xx_CONS_SMC2
#undef	CONFIG_8xx_CONS_NONE
#define CONFIG_BAUDRATE		19200	/* console baudrate = 115kbps	*/
#if 0
#define CONFIG_BOOTDELAY	-1	/* autoboot disabled		*/
#else
#define CONFIG_BOOTDELAY	1	/* autoboot after 5 seconds	*/
#endif

#define	CONFIG_CLOCKS_IN_MHZ	1	/* clocks passsed to Linux in MHz */

#define CONFIG_BOARD_TYPES      1       /* support board types          */

#define CONFIG_PREBOOT	"echo;echo Welcome to U-Boot SVM port;echo;echo Type \"? or help\" to get on-line help;echo"

#undef	CONFIG_BOOTARGS
#define CONFIG_EXTRA_ENV_SETTINGS                                       \
        "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"                  \
	        "flash_nfs=run nfsargs addip;"                                  \
             "bootm $(kernel_addr)\0"                                \
        "flash_self=run ramargs addip;"                                 \
               "bootm $(kernel_addr) $(ramdisk_addr)\0"                \
        "net_nfs=tftp 0x210000 $(bootfile);run nfsargs addip;bootm\0"     \
        "rootpath=/opt/sinovee/ppc8xx-linux-2.0/target\0"                                  \
        "bootfile=pImage-sc855t\0"                           \
        "kernel_addr=48000000\0"                                        \
        "ramdisk_addr=48100000\0"                                       \
        ""
#define CONFIG_BOOTCOMMAND							\
	"setenv bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) " 	\
	"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off; " 	\
	"tftpboot 0x210000 pImage-sc855t;bootm 0x210000"

#define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/
#undef	CFG_LOADS_BAUD_CHANGE		/* don't allow baudrate change	*/


#ifdef CONFIG_LCD
# undef	 CONFIG_STATUS_LED		/* disturbs display		*/
#else
# define CONFIG_STATUS_LED	1	/* Status LED enabled		*/
#endif	/* CONFIG_LCD */

#undef	CONFIG_CAN_DRIVER		/* CAN Driver support disabled	*/

#define CONFIG_BOOTP_MASK	(CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE)

#define CONFIG_MAC_PARTITION
#define CONFIG_DOS_PARTITION

#define	CONFIG_RTC_MPC8xx		/* use internal RTC of MPC8xx	*/

#define CONFIG_COMMANDS	      ( CONFIG_CMD_DFL	| \
		                CFG_CMD_ASKENV  | \
		 		CFG_CMD_DHCP	| \
				CFG_CMD_DOC	| \
/*				CFG_CMD_IDE     |*/ \
				CFG_CMD_DATE	)

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

/*
 * Miscellaneous configurable options
 */
#define	CFG_LONGHELP			/* undef to save memory		*/
#define	CFG_PROMPT	"=> "		/* Monitor Command Prompt	*/

#ifdef  CFG_HUSH_PARSER
#define CFG_PROMPT_HUSH_PS2     "> "
#endif

#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
#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_HZ		1000		/* decrementer freq: 1 ms ticks	*/

#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.
 */
/*-----------------------------------------------------------------------
 * Internal Memory Mapped Register
 */
#define CFG_IMMR		0xFF000000

/*-----------------------------------------------------------------------
 * Definitions for initial stack pointer and data area (in DPRAM)
 */
#define CFG_INIT_RAM_ADDR	CFG_IMMR
#define	CFG_INIT_RAM_END	0x2F00	/* End of used area in DPRAM	*/
#define	CFG_GBL_DATA_SIZE	64  /* size in 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
 */
#define	CFG_SDRAM_BASE		0x00000000
#define CFG_FLASH_BASE		0x40000000
#define	CFG_MONITOR_LEN		(384 << 10)	/* Reserve 192 kB for Monitor	*/
#define CFG_MONITOR_BASE	CFG_FLASH_BASE
#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 organization
 */
#define CFG_MAX_FLASH_BANKS	2	/* max number of memory banks		*/
#define CFG_MAX_FLASH_SECT	67	/* max number of sectors on one chip	*/

#define CFG_FLASH_ERASE_TOUT	120000	/* Timeout for Flash Erase (in ms)	*/
#define CFG_FLASH_WRITE_TOUT	500	/* Timeout for Flash Write (in ms)	*/

#define	CFG_ENV_IS_IN_FLASH	1

#ifdef CONFIG_BOOT_8B
#define	CFG_ENV_OFFSET		0x10000	/*   Offset   of Environment Sector	*/
#define	CFG_ENV_SIZE		0x10000	/* Total Size of Environment Sector	*/
#elif defined (CONFIG_BOOT_16B)
#define	CFG_ENV_OFFSET		0x10000	/*   Offset   of Environment Sector	*/
#define	CFG_ENV_SIZE		0x10000	/* Total Size of Environment Sector	*/
#elif defined (CONFIG_BOOT_32B)
#define	CFG_ENV_OFFSET		0x8000	/*   Offset   of Environment Sector	*/
#define	CFG_ENV_SIZE		0x4000	/* Total Size of Environment Sector	*/
#endif

/* Address and size of Redundant Environment Sector     */
#define CFG_ENV_OFFSET_REDUND   (CFG_ENV_OFFSET+CFG_ENV_SIZE)
#define CFG_ENV_SIZE_REDUND     (CFG_ENV_SIZE)