ivms8.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
 * 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
 */

#ifndef __CONFIG_H
#define __CONFIG_H

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

#define CONFIG_MPC860		1	/* This is a MPC860 CPU		*/
#define CONFIG_IVMS8		1	/* ...on a IVMS8 board		*/

#if defined (CONFIG_IVMS8_16M)
# define CONFIG_IDENT_STRING     " IVMS8"
#elif defined (CONFIG_IVMS8_32M)
# define CONFIG_IDENT_STRING     " IVMS8_128"
#elif defined (CONFIG_IVMS8_64M)
# define CONFIG_IDENT_STRING     " IVMS8_256"
#endif

#define	CONFIG_8xx_CONS_SMC1	1	/* Console is on SMC1		*/
#undef	CONFIG_8xx_CONS_SMC2
#undef	CONFIG_8xx_CONS_NONE
#define CONFIG_BAUDRATE		115200

#define	CONFIG_CLOCKS_IN_MHZ	1	/* clocks passsed to Linux in MHz */
#define CONFIG_8xx_GCLK_FREQ    50331648

#define	CONFIG_SHOW_BOOT_PROGRESS 1	/* Show boot progress on LEDs	*/

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

#define CONFIG_BOOTARGS		"root=/dev/nfs rw "			\
				"nfsroot=10.0.0.2:/opt/eldk/ppc_8xx "	\
				"nfsaddrs=10.0.0.99:10.0.0.2"

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

#undef	CONFIG_WATCHDOG			/* watchdog disabled		*/

#define	CONFIG_STATUS_LED	1	/* Status LED enabled		*/

#define CONFIG_COMMANDS		(CONFIG_CMD_DFL | CFG_CMD_IDE)
#define CONFIG_MAC_PARTITION
#define CONFIG_DOS_PARTITION

#define CONFIG_BOOTP_MASK \
    ((CONFIG_BOOTP_DEFAULT | CONFIG_BOOTP_BOOTFILESIZE) & ~CONFIG_BOOTP_GATEWAY)

/* 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	*/
#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		0x00F00000	/* 1 ... 15MB in DRAM	*/

#define	CFG_LOAD_ADDR		0x00100000	/* default load address	*/

#define	CFG_PIO_MODE		0	/* IDE interface in PIO Mode 0	*/

#define CFG_PB_SDRAM_CLKE	0x00008000		/* PB 16	*/
#define CFG_PB_ETH_POWERDOWN	0x00010000		/* PB 15	*/
#define CFG_PB_IDE_MOTOR	0x00020000		/* PB 14	*/

#define CFG_PC_ETH_RESET	((ushort)0x0010)	/* PC 11	*/
#define CFG_PC_IDE_RESET	((ushort)0x0020)	/* PC 10	*/

#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		0xFFF00000 /* was: 0xFF000000 */

/*-----------------------------------------------------------------------
 * Definitions for initial stack pointer and data area (in DPRAM)
 */
#define CFG_INIT_RAM_ADDR	CFG_IMMR
#if defined (CONFIG_IVMS8_16M)
# define	CFG_INIT_RAM_END	0x2F00	/* End of used area in DPRAM	*/
#elif defined (CONFIG_IVMS8_32M)
# define	CFG_INIT_RAM_END	0x3000	/* End of used area in DPRAM	*/
#elif defined (CONFIG_IVMS8_64M)
# define	CFG_INIT_RAM_END	0x3000	/* End of used area in DPRAM	*/
#endif

#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		0xFF000000
#ifdef	DEBUG
#define	CFG_MONITOR_LEN		(256 << 10)	/* Reserve 256 kB for Monitor	*/
#else
#define	CFG_MONITOR_LEN		(192 << 10)	/* Reserve 192 kB for Monitor	*/
#endif
#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	1	/* max number of memory banks		*/
#define CFG_MAX_FLASH_SECT	256	/* 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
#define	CFG_ENV_OFFSET		0x7A000	/*   Offset   of Environment Sector	*/
#define	CFG_ENV_SIZE		0x2000	/* Total Size of Environment Sector	*/
/*-----------------------------------------------------------------------
 * Cache Configuration
 */
#define CFG_CACHELINE_SIZE	16	/* For all MPC8xx CPUs			*/
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
#define CFG_CACHELINE_SHIFT	4	/* log base 2 of the above value	*/
#endif

/*-----------------------------------------------------------------------
 * SYPCR - System Protection Control				11-9
 * SYPCR can only be written once after reset!
 *-----------------------------------------------------------------------
 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
 */
#if defined(CONFIG_WATCHDOG)
# if defined (CONFIG_IVMS8_16M)
#   define CFG_SYPCR	(SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
 			 SYPCR_SWE  | SYPCR_SWRI| SYPCR_SWP)
#  elif defined (CONFIG_IVMS8_32M)
#   define CFG_SYPCR	(SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
			 SYPCR_SWE  | SYPCR_SWP)
#  elif defined (CONFIG_IVMS8_64M)
#   define CFG_SYPCR	(SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
			 SYPCR_SWE  | SYPCR_SWP)
#  endif
#else
# define CFG_SYPCR	(SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
#endif

/*-----------------------------------------------------------------------
 * SIUMCR - SIU Module Configuration				11-6
 *-----------------------------------------------------------------------
 * PCMCIA config., multi-function pin tri-state
 */
/* EARB, DBGC and DBPC are initialised by the HCW */
/* => 0x000000C0 */
#define CFG_SIUMCR	(SIUMCR_BSC | SIUMCR_GB5E)

/*-----------------------------------------------------------------------
 * TBSCR - Time Base Status and Control				11-26
 *-----------------------------------------------------------------------
 * Clear Reference Interrupt Status, Timebase freezing enabled
 */
#define CFG_TBSCR	(TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)

/*-----------------------------------------------------------------------
 * PISCR - Periodic Interrupt Status and Control		11-31
 *-----------------------------------------------------------------------
 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
 */
#define CFG_PISCR	(PISCR_PS | PISCR_PITF)

/*-----------------------------------------------------------------------