f6e20fc6ca
ARM memory layout fixes: the abort-stack is now set up in the correct RAM area, and the BSS is zeroed out as it should be. Furthermore, the magic variables 'armboot_end' and 'armboot_end_data' of the linker scripts are replaced by '__bss_start' and '_end', resp., which is a further step to eliminate unnecessary differences between the implementation of the CPU architectures.
173 lines
5.7 KiB
C
173 lines
5.7 KiB
C
/*
|
|
* (C) Copyright 2003
|
|
* Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
|
|
*
|
|
* Configuation settings for the IXDP425 board.
|
|
*
|
|
* 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_IXP425 1 /* This is an IXP425 CPU */
|
|
#define CONFIG_IXDP425 1 /* on an IXDP425 Board */
|
|
|
|
/***************************************************************
|
|
* U-boot generic defines start here.
|
|
***************************************************************/
|
|
|
|
/*
|
|
* If we are developing, we might want to start armboot from ram
|
|
* so we MUST NOT initialize critical regs like mem-timing ...
|
|
*/
|
|
#define CONFIG_INIT_CRITICAL /* undef for developing */
|
|
|
|
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
|
|
|
|
/*
|
|
* Size of malloc() pool
|
|
*/
|
|
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
|
|
#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
|
|
|
|
/* allow to overwrite serial and ethaddr */
|
|
#define CONFIG_ENV_OVERWRITE
|
|
|
|
#define CONFIG_BAUDRATE 115200
|
|
|
|
#define CONFIG_COMMANDS (CONFIG_CMD_DFL & ~CFG_CMD_NET)
|
|
|
|
/* This must be included AFTER the definition of CONFIG_COMMANDS (if any) */
|
|
/* These are u-boot generic parameters */
|
|
#include <cmd_confdefs.h>
|
|
|
|
#define CONFIG_BOOTDELAY 3
|
|
#define CONFIG_ETHADDR 08:00:3e:26:0a:5b
|
|
#define CONFIG_NETMASK 255.255.0.0
|
|
#define CONFIG_IPADDR 192.168.0.21
|
|
#define CONFIG_SERVERIP 192.168.0.250
|
|
#define CONFIG_BOOTCOMMAND "bootm 50040000"
|
|
#define CONFIG_BOOTARGS "root=/dev/mtdblock2 rootfstype=cramfs console=ttyS0,115200"
|
|
#define CONFIG_CMDLINE_TAG
|
|
|
|
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
|
|
#define CONFIG_KGDB_BAUDRATE 230400 /* speed to run kgdb serial port */
|
|
#define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */
|
|
#endif
|
|
|
|
/*
|
|
* Miscellaneous configurable options
|
|
*/
|
|
#define CFG_LONGHELP /* undef to save memory */
|
|
#define CFG_PROMPT "=> " /* Monitor Command Prompt */
|
|
#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
|
|
#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 0x00400000 /* memtest works on */
|
|
#define CFG_MEMTEST_END 0x00800000 /* 4 ... 8 MB in DRAM */
|
|
|
|
#undef CFG_CLKS_IN_HZ /* everything, incl board info, in Hz */
|
|
|
|
#define CFG_LOAD_ADDR 0x00010000 /* default load address */
|
|
|
|
#define CFG_HZ 3333333 /* spec says 66.666 MHz, but it appears to be 33 */
|
|
/* valid baudrates */
|
|
#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
|
|
|
|
/*
|
|
* Stack sizes
|
|
*
|
|
* The stack sizes are set up in start.S using the settings below
|
|
*/
|
|
#define CONFIG_STACKSIZE (128*1024) /* regular stack */
|
|
#ifdef CONFIG_USE_IRQ
|
|
#define CONFIG_STACKSIZE_IRQ (4*1024) /* IRQ stack */
|
|
#define CONFIG_STACKSIZE_FIQ (4*1024) /* FIQ stack */
|
|
#endif
|
|
|
|
/***************************************************************
|
|
* Platform/Board specific defines start here.
|
|
***************************************************************/
|
|
|
|
/*
|
|
* Hardware drivers
|
|
*/
|
|
|
|
|
|
/*
|
|
* select serial console configuration
|
|
*/
|
|
#define CFG_IXP425_CONSOLE IXP425_UART1 /* we use UART1 for console */
|
|
|
|
/*
|
|
* Physical Memory Map
|
|
*/
|
|
#define CONFIG_NR_DRAM_BANKS 1 /* we have 2 banks of DRAM */
|
|
#define PHYS_SDRAM_1 0x00000000 /* SDRAM Bank #1 */
|
|
#define PHYS_SDRAM_1_SIZE 0x01000000 /* 16 MB */
|
|
|
|
#define PHYS_FLASH_1 0x50000000 /* Flash Bank #1 */
|
|
#define PHYS_FLASH_SIZE 0x00800000 /* 8 MB */
|
|
#define PHYS_FLASH_BANK_SIZE 0x00800000 /* 8 MB Banks */
|
|
#define PHYS_FLASH_SECT_SIZE 0x00020000 /* 128 KB sectors (x1) */
|
|
|
|
#define CFG_DRAM_BASE 0x00000000
|
|
#define CFG_DRAM_SIZE 0x01000000
|
|
|
|
#define CFG_FLASH_BASE PHYS_FLASH_1
|
|
|
|
/*
|
|
* Expansion bus settings
|
|
*/
|
|
#define CFG_EXP_CS0 0xbcd23c42
|
|
|
|
/*
|
|
* SDRAM settings
|
|
*/
|
|
#define CFG_SDR_CONFIG 0xd
|
|
#define CFG_SDRAM_REFRESH_CNT 0x81a
|
|
|
|
/*
|
|
* GPIO settings
|
|
*/
|
|
|
|
/*
|
|
* FLASH and environment organization
|
|
*/
|
|
#define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
|
|
#define CFG_MAX_FLASH_SECT 128 /* max number of sectors on one chip */
|
|
|
|
/* timeout values are in ticks */
|
|
#define CFG_FLASH_ERASE_TOUT (25*CFG_HZ) /* Timeout for Flash Erase */
|
|
#define CFG_FLASH_WRITE_TOUT (25*CFG_HZ) /* Timeout for Flash Write */
|
|
|
|
/* FIXME */
|
|
#define CFG_ENV_IS_IN_FLASH 1
|
|
#define CFG_ENV_ADDR (PHYS_FLASH_1 + 0x20000) /* Addr of Environment Sector */
|
|
#define CFG_ENV_SIZE 0x20000 /* Total Size of Environment Sector */
|
|
|
|
#endif /* __CONFIG_H */
|