kup4k.h

嵌入式试验箱S3C2410的bootloader源代码

/*
 * (C) Copyright 2000-2005
 * Wolfgang Denk, DENX Software Engineering, [e-mail].
 * Klaus Heydeck, Kieback & Peter GmbH & Co KG, [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
 * Derived from ../tqm8xx/tqm8xx.c
 */

#ifndef __CONFIG_H
#define __CONFIG_H

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

#define CONFIG_MPC855		1	/* This is a MPC855 CPU		*/
#define CONFIG_KUP4K		1	/* ...on a KUP4K module */

#define CONFIG_8xx_CONS_SMC1	1	/* Console is on SMC1		*/
#undef	CONFIG_8xx_CONS_SMC2
#undef	CONFIG_8xx_CONS_NONE
#define CONFIG_BAUDRATE		115200	/* console baudrate		*/
#if 0
#define CONFIG_BOOTDELAY	-1	/* autoboot disabled		*/
#else
#define CONFIG_BOOTDELAY	1	/* autoboot after 1 second	*/
#endif

#define CONFIG_BOARD_TYPES	1	/* support board types		*/


#undef	CONFIG_BOOTARGS


#define CONFIG_EXTRA_ENV_SETTINGS						\
"slot_a_boot=setenv bootargs root=/dev/hda2 ip=off;"				\
 "run addhw; diskboot 200000 0:1; bootm 200000\0"				\
"slot_b_boot=setenv bootargs root=/dev/hda2 ip=off;"				\
 "run addhw; diskboot 200000 2:1; bootm 200000\0"				\
"nfs_boot=dhcp; run nfsargs addip addhw; bootm 200000\0"			\
"panic_boot=echo No Bootdevice !!! reset\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\0"					\
"addhw=setenv bootargs ${bootargs} hw=${hw} key1=${key1} panic=1\0"		\
"netdev=eth0\0"									\
"contrast=55\0"									\
"silent=1\0"									\
"load=tftp 200000 bootloader-4k.bitmap;tftp 100000 bootloader-4k.bin\0"		\
"update=protect off 1:0-7;era 1:0-7;cp.b 100000 40000000 ${filesize};"		\
 "cp.b 200000 40050000 14000\0"

#define CONFIG_BOOTCOMMAND  \
    "run slot_a_boot;run slot_b_boot;run nfs_boot;run panic_boot"


#define CONFIG_MISC_INIT_R	1
#define CONFIG_MISC_INIT_F	1

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

#define	CONFIG_WATCHDOG	1		/* watchdog enabled		*/

#define CONFIG_STATUS_LED	1	/* Status LED enabled		*/

#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


/*
 * enable I2C and select the hardware/software driver
 */
#undef	CONFIG_HARD_I2C			/* I2C with hardware support	*/
#define	CONFIG_SOFT_I2C         1	/* I2C bit-banged		*/

#define CFG_I2C_SPEED		93000	/* 93 kHz is supposed to work	*/
#define CFG_I2C_SLAVE		0xFE

#ifdef CONFIG_SOFT_I2C
/*
 * Software (bit-bang) I2C driver configuration
 */
#define PB_SCL		0x00000020	/* PB 26 */
#define PB_SDA		0x00000010	/* PB 27 */

#define I2C_INIT	(immr->im_cpm.cp_pbdir |=  PB_SCL)
#define I2C_ACTIVE	(immr->im_cpm.cp_pbdir |=  PB_SDA)
#define I2C_TRISTATE	(immr->im_cpm.cp_pbdir &= ~PB_SDA)
#define I2C_READ	((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
#define I2C_SDA(bit)	if(bit) immr->im_cpm.cp_pbdat |=  PB_SDA; \
			else    immr->im_cpm.cp_pbdat &= ~PB_SDA
#define I2C_SCL(bit)	if(bit) immr->im_cpm.cp_pbdat |=  PB_SCL; \
			else    immr->im_cpm.cp_pbdat &= ~PB_SCL
#define I2C_DELAY	udelay(2)	/* 1/4 I2C clock duration */
#endif	/* CONFIG_SOFT_I2C */


/*-----------------------------------------------------------------------
 * I2C Configuration
 */

#define CFG_I2C_PICIO_ADDR	0x21	/* PCF8574 IO Expander			*/
#define CFG_I2C_RTC_ADDR	0x51	/* PCF8563 RTC				*/


/* List of I2C addresses to be verified by POST */

#define I2C_ADDR_LIST	{CFG_I2C_PICIO_ADDR,	\
			CFG_I2C_RTC_ADDR,	\
			}


#define CONFIG_RTC_PCF8563		/* use Philips PCF8563 RTC	*/

#define CFG_DISCOVER_PHY
#define CONFIG_MII

#if 0
#define CONFIG_ETHADDR                  00:0B:64:00:00:00 /* our OUI from IEEE */
#endif
#define CONFIG_KUP4K_LOGO               0x40050000  /* Address of logo bitmap */

/* Define to allow the user to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
#if 1
/* POST support */

#define CONFIG_POST		(CFG_POST_CPU	   | \
				 CFG_POST_RTC	   | \
				 CFG_POST_I2C)

#ifdef CONFIG_POST
#define CFG_CMD_POST_DIAG CFG_CMD_DIAG
#else
#define CFG_CMD_POST_DIAG 0
#endif
#endif

#define CONFIG_COMMANDS	      ( CONFIG_CMD_DFL	| \
				CFG_CMD_DATE	| \
				CFG_CMD_DHCP	| \
				CFG_CMD_I2C	| \
				CFG_CMD_IDE	| \
				CFG_CMD_NFS	| \
				CFG_CMD_POST_DIAG	| \
				CFG_CMD_SNTP	)

/* 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	0x000400000	/* memtest works on	*/
#define CFG_MEMTEST_END		0x002C00000	/* 4 ... 44 MB in DRAM	*/

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

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

#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 115200 }

#define CFG_CONSOLE_INFO_QUIET 1

/*
 * 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

/*-----------------------------------------------------------------------
 * 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		(192 << 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	1	/* max number of memory banks		*/
#define CFG_MAX_FLASH_SECT	19	/* max number of sectors on one chip	*/