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/*
* (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
/*
* 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 lowlevel_init (!CONFIG_SKIP_LOWLEVEL_INIT) to remedy that problem.
*/
#undef CONFIG_SKIP_LOWLEVEL_INIT
#define CONFIG_SKIP_RELOCATE_UBOOT 1
/*
* 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 */
/* we will never enable dcache, because we have to setup MMU first */
#define CONFIG_SYS_NO_DCACHE
#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 CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 128*1024)
#define CONFIG_SYS_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_SA1100_SERIAL
#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
/*
* Command line configuration.
*/
#include <config_cmd_default.h>
#define CONFIG_CMD_DHCP
/*
* BOOTP options
*/
#define CONFIG_BOOTP_SUBNETMASK
#define CONFIG_BOOTP_GATEWAY
#define CONFIG_BOOTP_HOSTNAME
#define CONFIG_BOOTP_BOOTPATH
#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 CONFIG_SYS_AUTOLOAD "n" /* No autoload */
#if defined(CONFIG_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 CONFIG_SYS_LONGHELP /* undef to save memory */
#define CONFIG_SYS_PROMPT "ADS GCPlus # " /* Monitor Command Prompt */
#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
#define CONFIG_SYS_MEMTEST_START 0xc0400000 /* memtest works on */
#define CONFIG_SYS_MEMTEST_END 0xc0800000 /* 4 ... 8 MB in DRAM */
#define CONFIG_SYS_LOAD_ADDR 0xc0000000 /* default load address */
#define CONFIG_SYS_HZ 3686400 /* incrementer freq: 3.6864 MHz */
#define CONFIG_SYS_CPUSPEED 0x0a /* set core clock to 206MHz */
/* valid baudrates */
#define CONFIG_SYS_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 CONFIG_SYS_FLASH_BASE PHYS_FLASH_1
/*-----------------------------------------------------------------------
* FLASH and environment organization
*/
#if 1
#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
#define CONFIG_SYS_MAX_FLASH_SECT 128 /* max number of sectors on one chip */
/* timeout values are in ticks */
#define CONFIG_SYS_FLASH_ERASE_TOUT (2*CONFIG_SYS_HZ) /* Timeout for Flash Erase */
#define CONFIG_SYS_FLASH_WRITE_TOUT (2*CONFIG_SYS_HZ) /* Timeout for Flash Write */
#else
/* REVISIT: This doesn't work on ADS GCPlus just yet: */
#define CONFIG_SYS_FLASH_CFI 1 /* flash is CFI conformant */
#define CONFIG_FLASH_CFI_DRIVER 1 /* use common cfi driver */
#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1 /* use buffered writes (20x faster) */
#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max # of memory banks */
#define CONFIG_SYS_FLASH_INCREMENT 0 /* there is only one bank */
#define CONFIG_SYS_MAX_FLASH_SECT 128 /* max # of sectors on one chip */
/*#define CONFIG_SYS_FLASH_PROTECTION 1 /--* hardware flash protection */
#define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE }
#endif
#define CONFIG_ENV_IS_IN_FLASH 1
#define CONFIG_ENV_ADDR (PHYS_FLASH_1 + PHYS_FLASH_SECT_SIZE) /* Addr of Environment Sector */
#define CONFIG_ENV_SIZE PHYS_FLASH_SECT_SIZE
#endif /* __CONFIG_H */
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