canmb.h

嵌入式试验箱S3C2410的bootloader源代码

/*
 * (C) Copyright 2005
 * 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
 */

#ifndef __CONFIG_H
#define __CONFIG_H

/*
 * High Level Configuration Options
 * (easy to change)
 */

#define CONFIG_MPC5xxx		1	/* This is an MPC5xxx CPU */
#define CONFIG_MPC5200		1	/* More exactly a MPC5200 */
#define CONFIG_CANMB  		1	/* ... on canmb board - we need this for FEC.C */

#define CFG_MPC5XXX_CLKIN	33000000 /* ... running at 33.000000MHz */

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

#define CFG_CACHELINE_SIZE	32	/* For MPC5xxx CPUs */
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
#  define CFG_CACHELINE_SHIFT	5	/* log base 2 of the above value */
#endif

#define CONFIG_BOARD_EARLY_INIT_R

/*
 * Serial console configuration
 */
#define CONFIG_PSC_CONSOLE	1	/* console is on PSC1 */
#define CONFIG_BAUDRATE		115200	/* ... at 115200 bps */
#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200, 230400 }

/*
 * Supported commands
 */
#define CONFIG_COMMANDS	      ( CONFIG_CMD_DFL	| \
				CFG_CMD_ASKENV	| \
				CFG_CMD_DATE	| \
				CFG_CMD_DHCP	| \
				CFG_CMD_IMMAP	| \
				CFG_CMD_MII 	| \
				CFG_CMD_NFS	| \
				CFG_CMD_REGINFO	| \
				CFG_CMD_SNTP	)

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

/*
 * MUST be low boot - HIGHBOOT is not supported anymore
 */
#if (TEXT_BASE == 0xFE000000)		/* Boot low with 32 MB Flash */
#   define CFG_LOWBOOT		1
#   define CFG_LOWBOOT16	1
#else
#   error "TEXT_BASE must be 0xFE000000"
#endif

/*
 * Autobooting
 */
#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds */

#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"							\
	"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 200000 ${bootfile};run nfsargs addip;bootm\0"	\
	"rootpath=/opt/eldk/ppc_6xx\0"					\
	"bootfile=/tftpboot/canmb/uImage\0"				\
	""

#define CONFIG_BOOTCOMMAND	"run flash_self"

/*
 * IPB Bus clocking configuration.
 */
#undef CFG_IPBSPEED_133   		/* define for 133MHz speed */

/*
 * Flash configuration, expect one 16 Megabyte Bank at most
 */
#define CFG_FLASH_BASE		0xFE000000
#define CFG_FLASH_SIZE		0x02000000
#define CFG_MAX_FLASH_BANKS	1	/* max num of memory banks      */
#define CFG_MAX_FLASH_SECT	256	/* max num of sects on one chip */

#define CFG_FLASH_ERASE_TOUT	240000	/* Flash Erase Timeout (in ms)  */
#define CFG_FLASH_WRITE_TOUT	500	/* Flash Write Timeout (in ms)  */

#define CFG_FLASH_CFI_DRIVER
#define CFG_FLASH_CFI
#define CFG_FLASH_EMPTY_INFO

/*
 * Environment settings
 */
#define CFG_ENV_IS_IN_FLASH	1
#define CFG_ENV_OFFSET		(2*128*1024)
#define CFG_ENV_SIZE		0x2000
#define CFG_ENV_SECT_SIZE       (128*1024)

/*
 * Memory map
 *
 * Warning!!! with the current BestComm Task, MBAR MUST BE set to 0xf0000000
 */
#define CFG_MBAR			0xf0000000	/* DO NOT CHANGE this */
#define CFG_SDRAM_BASE		0x00000000
#define CFG_DEFAULT_MBAR	0x80000000

/* Use SRAM until RAM will be available */
#define CFG_INIT_RAM_ADDR	MPC5XXX_SRAM
#define CFG_INIT_RAM_END	MPC5XXX_SRAM_SIZE	/* End of used area in DPRAM */


#define CFG_GBL_DATA_SIZE	128	/* 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

#define CFG_MONITOR_BASE    TEXT_BASE
#if (CFG_MONITOR_BASE < CFG_FLASH_BASE)
#   define CFG_RAMBOOT		1
#endif

#define CFG_MONITOR_LEN		(256 << 10)	/* Reserve 256 kB for Monitor	*/
#define CFG_MALLOC_LEN		(128 << 10)	/* Reserve 128 kB for malloc()	*/
#define CFG_BOOTMAPSZ		(8 << 20)	/* Initial Memory map for Linux */

/*
 * Ethernet configuration
 */
#define CONFIG_MPC5xxx_FEC	1
#define	CONFIG_PHY_ADDR		0x0
/*
 * GPIO configuration:
 * PSC1,2,3 predefined as UART
 * PCI disabled
 * Ethernet 100 with MD
 */
#define CFG_GPS_PORT_CONFIG	0x00058444

/*
 * Miscellaneous configurable options
 */
#define CFG_LONGHELP			/* undef to save memory	    */
#define CFG_PROMPT		"=> "	/* Monitor Command Prompt   */
#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	0x00100000	/* memtest works on */
#define CFG_MEMTEST_END		0x01f00000	/* 1 ... 31 MB in DRAM	*/

#define CFG_LOAD_ADDR		0x200000	/* default load address */

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

#define CONFIG_RTC_MPC5200	1	/* use internal MPC5200 RTC */

/*
 * Various low-level settings
 */
#define CFG_HID0_INIT		HID0_ICE | HID0_ICFI
#define CFG_HID0_FINAL		HID0_ICE

#define CFG_BOOTCS_START	CFG_FLASH_BASE
#define CFG_BOOTCS_SIZE		CFG_FLASH_SIZE
#define CFG_BOOTCS_CFG		0x00047D01
#define CFG_CS0_START		CFG_FLASH_BASE
#define CFG_CS0_SIZE		CFG_FLASH_SIZE

#define CFG_CS_BURST		0x00000000
#define CFG_CS_DEADCYCLE	0x33333333

#define CFG_RESET_ADDRESS	0x7f000000

#endif /* __CONFIG_H */