mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 17:07:38 +00:00
ab86f72c35
Change the implementation for arm926 to relocate the code to an arbitrary address in RAM. Adapt the TX25 (i.MX25), magnesium board to test the changes. On the tx25 board TEXT_BASE is set to the final relocation address to prevent one more copying of u-boot code when relocating. More info see: doc/README.arm-relocation da850 board: Tested-by: Ben Gardiner <bengardiner@nanometrics.ca> Portions of this work were supported by funding from the CE Linux Forum. Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Ben Gardiner <bengardiner@nanometrics.ca>
185 lines
5.7 KiB
C
185 lines
5.7 KiB
C
/*
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* (C) Copyright 2009 DENX Software Engineering
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* Author: John Rigby <jrigby@gmail.com>
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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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* KARO TX25 board - SoC Configuration
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*/
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#define CONFIG_ARM926EJS /* arm926ejs CPU core */
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#define CONFIG_MX25
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#define CONFIG_TX25
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#define CONFIG_MX25_CLK32 32000 /* OSC32K frequency */
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#define CONFIG_SYS_HZ 1000
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#define CONFIG_SYS_MONITOR_LEN (256 << 10) /* 256 kB for U-Boot */
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/* NAND BOOT is the only boot method */
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#define CONFIG_NAND_U_BOOT
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#ifdef CONFIG_NAND_SPL
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/* Start copying real U-boot from the second page */
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#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x800
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#define CONFIG_SYS_NAND_U_BOOT_SIZE 0x30000
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#define CONFIG_SYS_NAND_U_BOOT_DST (0x81fc0000)
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#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_NAND_U_BOOT_DST
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#define CONFIG_SYS_NAND_PAGE_SIZE 2048
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#define CONFIG_SYS_NAND_SPARE_SIZE 64
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#define CONFIG_SYS_NAND_BLOCK_SIZE (128 * 1024)
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#define CONFIG_SYS_NAND_PAGE_COUNT 64
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#define CONFIG_SYS_NAND_SIZE (128 * 1024 * 1024)
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#define CONFIG_SYS_NAND_BAD_BLOCK_POS 0
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#else
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#define CONFIG_SKIP_LOWLEVEL_INIT
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#endif
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#define CONFIG_DISPLAY_CPUINFO
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#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
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#define CONFIG_SETUP_MEMORY_TAGS 1
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#define CONFIG_INITRD_TAG 1
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/*
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* Memory Info
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*/
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/* malloc() len */
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#define CONFIG_SYS_MALLOC_LEN (1 << 20) /* 1 MiB */
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/* reserved for initial data */
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#define CONFIG_SYS_GBL_DATA_SIZE 128
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/*
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* Board has 2 32MB banks of DRAM but there is a bug when using
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* both so only the first is configured
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*/
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#define CONFIG_NR_DRAM_BANKS 1
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#define PHYS_SDRAM_1 0x80000000
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#define PHYS_SDRAM_1_SIZE 0x02000000
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#if (CONFIG_NR_DRAM_BANKS == 2)
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#define PHYS_SDRAM_2 0x90000000
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#define PHYS_SDRAM_2_SIZE 0x02000000
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#endif
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/* 8MB DRAM test */
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#define CONFIG_SYS_MEMTEST_START PHYS_SDRAM_1
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#define CONFIG_SYS_MEMTEST_END (PHYS_SDRAM_1+0x0800000)
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#define CONFIG_STACKSIZE (256 * 1024) /* regular stack */
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/*
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* Serial Info
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*/
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#define CONFIG_MXC_UART 1
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#define CONFIG_SYS_MX25_UART1 1
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#define CONFIG_CONS_INDEX 1 /* use UART0 for console */
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#define CONFIG_BAUDRATE 115200 /* Default baud rate */
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#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
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/*
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* Flash & Environment
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*/
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/* No NOR flash present */
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#define CONFIG_SYS_NO_FLASH 1
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#define CONFIG_ENV_IS_IN_NAND
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#define CONFIG_ENV_OFFSET CONFIG_SYS_MONITOR_LEN
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#define CONFIG_ENV_SIZE (128 * 1024) /* 128 kB NAND block size */
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#define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)
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/* NAND */
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#define CONFIG_NAND_MXC
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#define CONFIG_NAND_MXC_V1_1
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#define CONFIG_MXC_NAND_REGS_BASE (0xBB000000)
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#define CONFIG_SYS_MAX_NAND_DEVICE 1
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#define CONFIG_SYS_NAND_BASE (0xBB000000)
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#define CONFIG_JFFS2_NAND
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#define CONFIG_MXC_NAND_HWECC
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#define CONFIG_SYS_NAND_LARGEPAGE
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#define CONFIG_SYS_64BIT_VSPRINTF
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/* U-Boot general configuration */
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#define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
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#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
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/* Print buffer sz */
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#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
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sizeof(CONFIG_SYS_PROMPT) + 16)
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#define CONFIG_SYS_MAXARGS 32 /* max number of command args */
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/* Boot Argument Buffer Size */
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#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
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#define CONFIG_CMDLINE_EDITING
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#define CONFIG_SYS_LONGHELP
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/* U-Boot commands */
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#include <config_cmd_default.h>
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#define CONFIG_CMD_NAND
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#define CONFIG_CMD_CACHE
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/*
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* Ethernet
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*/
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#define CONFIG_FEC_MXC
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#define CONFIG_FEC_MXC_PHYADDR 0x1f
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#define CONFIG_MII
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#define CONFIG_CMD_NET
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#define CONFIG_NET_MULTI
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#define BOARD_LATE_INIT
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#define CONFIG_ENV_OVERWRITE
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#define CONFIG_BOOTDELAY 5
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#define CONFIG_LOADADDR 0x81000000 /* loadaddr env var */
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#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR
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#define xstr(s) str(s)
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#define str(s) #s
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#define CONFIG_EXTRA_ENV_SETTINGS \
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"netdev=eth0\0" \
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"nfsargs=setenv bootargs root=/dev/nfs rw " \
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"nfsroot=${serverip}:${rootpath}\0" \
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"ramargs=setenv bootargs root=/dev/ram rw\0" \
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"addip=setenv bootargs ${bootargs} " \
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"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \
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":${hostname}:${netdev}:off panic=1\0" \
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"addtty=setenv bootargs ${bootargs}" \
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" console=ttymxc0,${baudrate}\0" \
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"addmtd=setenv bootargs ${bootargs} ${mtdparts}\0" \
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"addmisc=setenv bootargs ${bootargs}\0" \
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"u-boot=tx25/u-boot.bin\0" \
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"kernel_addr_r=" xstr(CONFIG_LOADADDR) "\0" \
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"hostname=tx25\0" \
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"bootfile=tx25/uImage\0" \
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"rootpath=/opt/eldk/arm\0" \
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"net_nfs=tftp ${kernel_addr_r} ${bootfile};" \
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"run nfsargs addip addtty addmtd addmisc;" \
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"bootm\0" \
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"bootcmd=run net_nfs\0" \
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"load=tftp ${loadaddr} ${u-boot}\0" \
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"update=nand erase 0 40000;nand write ${loadaddr} 0 40000\0" \
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"upd=run load update\0" \
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/* additions for new relocation code, must added to all boards */
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#undef CONFIG_SYS_ARM_WITHOUT_RELOC /* This board is tested with relocation support */
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#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_1
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#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + 0x1000 - /* Fix this */ \
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CONFIG_SYS_GBL_DATA_SIZE)
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#endif /* __CONFIG_H */
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