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Diffstat (limited to 'include/configs/gcplus.h')
| -rw-r--r-- | include/configs/gcplus.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/include/configs/gcplus.h b/include/configs/gcplus.h new file mode 100644 index 0000000..eefb8a6 --- /dev/null +++ b/include/configs/gcplus.h @@ -0,0 +1,174 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * 2003-2004 (c) MontaVista Software, Inc. + * + * Configuation settings for the ADS GraphicsClient+ 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 + +#undef DEBUG + +/* + * The ADS GCPlus Linux boot ROM loads U-Boot into RAM at 0xc0200000. + * We don't actually init RAM in this case since we're using U-Boot as + * an secondary boot loader during Linux kernel development and testing, + * e.g. bootp/tftp download of the kernel is a far more convenient + * when testing new kernels on this target. However the ADS GCPlus Linux + * boot ROM leaves the MMU enabled when it passes control to U-Boot. So + * we use memsetup (CONFIG_INIT_CRITICAL) to remedy that problem. + */ +#define CONFIG_INIT_CRITICAL + +/* + * High Level Configuration Options + * (easy to change) + */ +#define CONFIG_SA1110 1 /* This is an SA1100 CPU */ +#define CONFIG_GCPLUS 1 /* on an ADS GCPlus Board */ + +#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */ + +#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */ +#define CONFIG_SETUP_MEMORY_TAGS 1 +#define CONFIG_INITRD_TAG 1 + +/* + * Size of malloc() pool + */ +#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024) +#define CFG_GBL_DATA_SIZE 128 /* size rsrvd for initial data */ + + +/* + * Hardware drivers + */ +#define CONFIG_DRIVER_LAN91C96 /* we have an SMC9194 on-board */ +#define CONFIG_LAN91C96_BASE 0x100e0000 + +/* + * select serial console configuration + */ +#define CONFIG_SERIAL3 1 /* we use SERIAL 3 on ADS GCPlus */ + +/* allow to overwrite serial and ethaddr */ +#define CONFIG_ENV_OVERWRITE + +#define CONFIG_BAUDRATE 38400 + +#define CONFIG_COMMANDS (CONFIG_CMD_DFL | CFG_CMD_DHCP) +#define CONFIG_BOOTP_MASK CONFIG_BOOTP_DEFAULT + +/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ +#include <cmd_confdefs.h> + +#define CONFIG_BOOTDELAY 3 +#define CONFIG_BOOTARGS "console=ttySA0,38400n8 mtdparts=sa1100-flash:1m@0(zImage),3m@1m(ramdisk.gz),12m@4m(userfs) root=/dev/nfs ip=bootp" +#define CONFIG_BOOTCOMMAND "bootp;tftp;bootm" +#define CFG_AUTOLOAD "n" /* No autoload */ + +#if (CONFIG_COMMANDS & CFG_CMD_KGDB) +#define CONFIG_KGDB_BAUDRATE 38400 /* 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 "ADS GCPlus # " /* 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 0xc0400000 /* memtest works on */ +#define CFG_MEMTEST_END 0xc0800000 /* 4 ... 8 MB in DRAM */ + +#undef CFG_CLKS_IN_HZ /* everything, incl board info, in Hz */ + +#define CFG_LOAD_ADDR 0xc0000000 /* default load address */ + +#define CFG_HZ 3686400 /* incrementer freq: 3.6864 MHz */ +#define CFG_CPUSPEED 0x0a /* set core clock to 206MHz */ + + /* 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 + +/*----------------------------------------------------------------------- + * Physical Memory Map + */ +#define CONFIG_NR_DRAM_BANKS 2 /* we have 2 banks of DRAM */ +#define PHYS_SDRAM_1 0xc0000000 /* SDRAM Bank #1 */ +#define PHYS_SDRAM_1_SIZE 0x01000000 /* 16 MB */ +#define PHYS_SDRAM_2 0xc8000000 /* SDRAM Bank #2 */ +#define PHYS_SDRAM_2_SIZE 0x01000000 /* 16 MB */ + + +#define PHYS_FLASH_1 0x08000000 /* Flash Bank #1 */ +#define PHYS_FLASH_SIZE 0x00800000 /* 8 MB */ +#define PHYS_FLASH_BANK_SIZE 0x01000000 /* 16 MB Banks */ +#define PHYS_FLASH_SECT_SIZE 0x00040000 /* 256 KB sectors (x2) */ + +#define CFG_FLASH_BASE PHYS_FLASH_1 + +/*----------------------------------------------------------------------- + * FLASH and environment organization + */ +#if 1 +#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 (2*CFG_HZ) /* Timeout for Flash Erase */ +#define CFG_FLASH_WRITE_TOUT (2*CFG_HZ) /* Timeout for Flash Write */ +#else +/* REVISIT: This doesn't work on ADS GCPlus just yet: +#define CFG_FLASH_CFI 1 /* flash is CFI conformant */ +#define CFG_FLASH_CFI_DRIVER 1 /* use common cfi driver */ +#define CFG_FLASH_USE_BUFFER_WRITE 1 /* use buffered writes (20x faster) */ +#define CFG_MAX_FLASH_BANKS 1 /* max # of memory banks */ +#define CFG_FLASH_INCREMENT 0 /* there is only one bank */ +#define CFG_MAX_FLASH_SECT 128 /* max # of sectors on one chip */ +//#define CFG_FLASH_PROTECTION 1 /* hardware flash protection */ +#define CFG_FLASH_BANKS_LIST { CFG_FLASH_BASE } +#endif + +#define CFG_ENV_IS_IN_FLASH 1 +#define CFG_ENV_ADDR (PHYS_FLASH_1 + PHYS_FLASH_SECT_SIZE) /* Addr of Environment Sector */ +#define CFG_ENV_SIZE PHYS_FLASH_SECT_SIZE + +#endif /* __CONFIG_H */ |