mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 15:37:23 +00:00
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.
172 lines
5.7 KiB
C
172 lines
5.7 KiB
C
/*
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* (C) Copyright 2003
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* Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
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*
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* Configuation settings for the IXDP425 board.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef __CONFIG_H
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#define __CONFIG_H
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/*
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* High Level Configuration Options
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* (easy to change)
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*/
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#define CONFIG_IXP425 1 /* This is an IXP425 CPU */
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#define CONFIG_IXDP425 1 /* on an IXDP425 Board */
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/***************************************************************
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* U-boot generic defines start here.
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***************************************************************/
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/*
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* If we are developing, we might want to start armboot from ram
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* so we MUST NOT initialize critical regs like mem-timing ...
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*/
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#define CONFIG_INIT_CRITICAL /* undef for developing */
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#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
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/*
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* Size of malloc() pool
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*/
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#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
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#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
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/* allow to overwrite serial and ethaddr */
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#define CONFIG_ENV_OVERWRITE
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#define CONFIG_BAUDRATE 115200
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#define CONFIG_COMMANDS (CONFIG_CMD_DFL & ~CFG_CMD_NET)
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/* This must be included AFTER the definition of CONFIG_COMMANDS (if any) */
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/* These are u-boot generic parameters */
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#include <cmd_confdefs.h>
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#define CONFIG_BOOTDELAY 3
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#define CONFIG_ETHADDR 08:00:3e:26:0a:5b
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#define CONFIG_NETMASK 255.255.0.0
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#define CONFIG_IPADDR 192.168.0.21
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#define CONFIG_SERVERIP 192.168.0.250
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#define CONFIG_BOOTCOMMAND "bootm 50040000"
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#define CONFIG_BOOTARGS "root=/dev/mtdblock2 rootfstype=cramfs console=ttyS0,115200"
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#define CONFIG_CMDLINE_TAG
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#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
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#define CONFIG_KGDB_BAUDRATE 230400 /* speed to run kgdb serial port */
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#define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */
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#endif
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/*
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* Miscellaneous configurable options
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*/
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#define CFG_LONGHELP /* undef to save memory */
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#define CFG_PROMPT "=> " /* Monitor Command Prompt */
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#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
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#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
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#define CFG_MAXARGS 16 /* max number of command args */
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#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
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#define CFG_MEMTEST_START 0x00400000 /* memtest works on */
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#define CFG_MEMTEST_END 0x00800000 /* 4 ... 8 MB in DRAM */
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#undef CFG_CLKS_IN_HZ /* everything, incl board info, in Hz */
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#define CFG_LOAD_ADDR 0x00010000 /* default load address */
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#define CFG_HZ 3333333 /* spec says 66.666 MHz, but it appears to be 33 */
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/* valid baudrates */
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#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
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/*
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* Stack sizes
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*
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* The stack sizes are set up in start.S using the settings below
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*/
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#define CONFIG_STACKSIZE (128*1024) /* regular stack */
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#ifdef CONFIG_USE_IRQ
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#define CONFIG_STACKSIZE_IRQ (4*1024) /* IRQ stack */
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#define CONFIG_STACKSIZE_FIQ (4*1024) /* FIQ stack */
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#endif
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/***************************************************************
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* Platform/Board specific defines start here.
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***************************************************************/
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/*
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* Hardware drivers
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*/
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/*
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* select serial console configuration
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*/
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#define CFG_IXP425_CONSOLE IXP425_UART1 /* we use UART1 for console */
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/*
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* Physical Memory Map
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*/
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#define CONFIG_NR_DRAM_BANKS 1 /* we have 2 banks of DRAM */
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#define PHYS_SDRAM_1 0x00000000 /* SDRAM Bank #1 */
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#define PHYS_SDRAM_1_SIZE 0x01000000 /* 16 MB */
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#define PHYS_FLASH_1 0x50000000 /* Flash Bank #1 */
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#define PHYS_FLASH_SIZE 0x00800000 /* 8 MB */
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#define PHYS_FLASH_BANK_SIZE 0x00800000 /* 8 MB Banks */
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#define PHYS_FLASH_SECT_SIZE 0x00020000 /* 128 KB sectors (x1) */
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#define CFG_DRAM_BASE 0x00000000
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#define CFG_DRAM_SIZE 0x01000000
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#define CFG_FLASH_BASE PHYS_FLASH_1
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/*
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* Expansion bus settings
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*/
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#define CFG_EXP_CS0 0xbcd23c42
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/*
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* SDRAM settings
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*/
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#define CFG_SDR_CONFIG 0xd
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#define CFG_SDRAM_REFRESH_CNT 0x81a
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/*
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* GPIO settings
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*/
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/*
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* FLASH and environment organization
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*/
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#define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
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#define CFG_MAX_FLASH_SECT 128 /* max number of sectors on one chip */
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/* timeout values are in ticks */
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#define CFG_FLASH_ERASE_TOUT (25*CFG_HZ) /* Timeout for Flash Erase */
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#define CFG_FLASH_WRITE_TOUT (25*CFG_HZ) /* Timeout for Flash Write */
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/* FIXME */
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#define CFG_ENV_IS_IN_FLASH 1
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#define CFG_ENV_ADDR (PHYS_FLASH_1 + 0x20000) /* Addr of Environment Sector */
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#define CFG_ENV_SIZE 0x20000 /* Total Size of Environment Sector */
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#endif /* __CONFIG_H */
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