fads.h

u-boot-1.1.6 源码包

/*
 * (C) Copyright 2000-2004
 * Wolfgang Denk, DENX Software Engineering, [e-mail].
 *
 * Derived from FADS860T definitions by Magnus Damm, Helmut Buchsbaum,
 * and Dan Malek
 *
 * Modified by, Yuli Barcohen, Arabella Software Ltd., [e-mail]
 *
 * This header file contains values common to all FADS family boards.
 *
 * 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
 */

/****************************************************************************
 * Flash Memory Map as used by U-Boot:
 *
 *                          Start Address    Length
 * +-----------------------+ 0xFE00_0000     Start of Flash -----------------
 * |                       | 0xFE00_0100     Reset Vector
 * +                       + 0xFE0?_????
 * | U-Boot code           |
 * |                       |
 * +-----------------------+ 0xFE04_0000 (sector border)
 * |                       |
 * |                       |
 * | U-Boot environment    |
 * |                       |                                 ^
 * |                       |                                 | U-Boot
 * +=======================+ 0xFE08_0000 (sector border)    -----------------
 * | Available             |                                 | Applications
 * | ...                   |                                 v
 *
 *****************************************************************************/

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

#define CONFIG_ENV_OVERWRITE

#define CONFIG_NFSBOOTCOMMAND							\
    "dhcp;"									\
    "setenv bootargs root=/dev/nfs rw nfsroot=$rootpath "			\
    "ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:eth0:off;"		\
    "bootm"

#define CONFIG_BOOTCOMMAND							\
    "setenv bootargs root=/dev/mtdblock2 rw mtdparts=phys:1280K(ROM)ro,-(root) "\
    "ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:eth0:off;"		\
    "bootm fe080000"

#undef CONFIG_BOOTARGS

#undef	CONFIG_WATCHDOG			/* watchdog disabled		*/
#define CONFIG_BZIP2	 /* include support for bzip2 compressed images */

/*
 * New MPC86xADS and MPC885ADS provide two Ethernet connectivity options:
 * 10Mbit/s on SCC and 100Mbit/s on FEC. FADS provides SCC Ethernet on
 * motherboard and FEC Ethernet on daughterboard. All new PQ1 chips have
 * got FEC so FEC is the default.
 */
#ifndef CONFIG_ADS
#undef	CONFIG_SCC1_ENET		/* Disable SCC1 ethernet */
#define	CONFIG_FEC_ENET			/* Use FEC ethernet  */
#else					/* Old ADS has not got FEC option */
#define	CONFIG_SCC1_ENET		/* Use SCC1 ethernet */
#undef	CONFIG_FEC_ENET			/* No FEC ethernet  */
#endif /* !CONFIG_ADS */

#if defined(CONFIG_SCC1_ENET) && defined(CONFIG_FEC_ENET)
#error Both CONFIG_SCC1_ENET and CONFIG_FEC_ENET configured
#endif

#ifdef CONFIG_FEC_ENET
#define CFG_DISCOVER_PHY
#endif

#ifndef CONFIG_COMMANDS
#define CONFIG_COMMANDS	(CONFIG_CMD_DFL   \
			 | CFG_CMD_ASKENV \
			 | CFG_CMD_DHCP   \
			 | CFG_CMD_ECHO   \
			 | CFG_CMD_IMMAP  \
			 | CFG_CMD_JFFS2  \
			 | CFG_CMD_MII    \
			 | CFG_CMD_PCMCIA \
			 | CFG_CMD_PING   \
			)
#endif /* !CONFIG_COMMANDS */

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

/*
 * Miscellaneous configurable options
 */
#define	CFG_PROMPT		"=>"		/* Monitor Command Prompt	*/
#define CFG_HUSH_PARSER
#define CFG_PROMPT_HUSH_PS2	"> "
#define	CFG_LONGHELP				/* #undef to save memory	*/
#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_LOAD_ADDR	 	0x00100000

#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
#if defined(CONFIG_MPC86xADS) || defined(CONFIG_MPC885ADS) /* New ADS or Duet */
#define	CFG_SDRAM_SIZE		0x00800000      	/* 8 Mbyte */
/*
 * 2048	SDRAM rows
 * 1000	factor s -> ms
 * 64	PTP (pre-divider from MPTPR) from SDRAM example configuration
 * 4	Number of refresh cycles per period
 * 64	Refresh cycle in ms per number of rows
 */
#define CFG_PTA_PER_CLK		((2048 * 64 * 1000) / (4 * 64))
#elif defined(CONFIG_FADS)				/* Old/new FADS */
#define	CFG_SDRAM_SIZE		0x00400000		/* 4 Mbyte */
#else							/* Old ADS */
#define	CFG_SDRAM_SIZE		0x00000000		/* No SDRAM */
#endif

#define CFG_MEMTEST_START	0x0100000	/* memtest works on	*/
#if (CFG_SDRAM_SIZE)
#define CFG_MEMTEST_END		CFG_SDRAM_SIZE	/* 1 ... SDRAM_SIZE	*/
#else
#define CFG_MEMTEST_END		0x0400000     	/* 1 ... 4 MB in DRAM	*/
#endif /* CFG_SDRAM_SIZE */

/*
 * 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	*/

#define CFG_MONITOR_BASE	TEXT_BASE
#define	CFG_MONITOR_LEN		(256 << 10)	/* Reserve 256 KB for monitor	*/

#ifdef CONFIG_BZIP2
#define	CFG_MALLOC_LEN		(2500 << 10)	/* Reserve ~2.5 MB for malloc()	*/
#else
#define	CFG_MALLOC_LEN		(384 << 10)	/* Reserve 384 kB for malloc()	*/
#endif /* CONFIG_BZIP2 */

/*-----------------------------------------------------------------------
 * Flash organization
 */
#define CFG_FLASH_BASE		CFG_MONITOR_BASE
#define CFG_FLASH_SIZE		((uint)(8 * 1024 * 1024))	/* max 8Mbyte	*/

#define CFG_MAX_FLASH_BANKS	4	/* max number of memory banks		*/
#define CFG_MAX_FLASH_SECT	8	/* 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_SECT_SIZE	0x40000	/* see README - env sector total size	*/
#define CFG_ENV_OFFSET		CFG_ENV_SECT_SIZE
#define	CFG_ENV_SIZE		0x4000	/* Total Size of Environment		*/

#define	CFG_DIRECT_FLASH_TFTP

#if (CONFIG_COMMANDS & CFG_CMD_JFFS2)

/*
 * JFFS2 partitions
 *
 */
/* No command line, one static partition, whole device */
#undef CONFIG_JFFS2_CMDLINE
#define CONFIG_JFFS2_DEV		"nor0"
#define CONFIG_JFFS2_PART_SIZE		0xFFFFFFFF
#define CONFIG_JFFS2_PART_OFFSET	0x00000000

/* mtdparts command line support */
/* Note: fake mtd_id used, no linux mtd map file */
/*
#define CONFIG_JFFS2_CMDLINE
#define MTDIDS_DEFAULT		"nor0=fads0,nor1=fads-1,nor2=fads-2,nor3=fads-3"
#define MTDPARTS_DEFAULT	"mtdparts=fads-0:-@1m(user1),fads-1:-(user2),fads-2:-(user3),fads-3:-(user4)"
*/

#define CFG_JFFS2_SORT_FRAGMENTS
#endif /* CFG_CMD_JFFS2 */

/*-----------------------------------------------------------------------
 * Cache Configuration
 */
#define CFG_CACHELINE_SIZE	16	/* For all MPC8xx CPUs			*/