mirror of
https://github.com/u-boot/u-boot.git
synced 2024-12-01 00:23:29 +08:00
c837dcb1a3
before we can access it; add delay in case we are faster (with no CF card inserted) * Cleanup of some init functions * Make sure SCC Ethernet is always stopped by the time we boot Linux to avoid Linux crashes by early packets coming in. * Accelerate flash accesses on LWMON board by using buffered writes
228 lines
8.0 KiB
C
228 lines
8.0 KiB
C
/*
|
|
* (C) Copyright 2001
|
|
* Matthias Fuchs, esd gmbh germany, matthias.fuchs@esd-electronics.com
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/*
|
|
* board/config.h - configuration options, board specific
|
|
*/
|
|
|
|
#ifndef __CONFIG_H
|
|
#define __CONFIG_H
|
|
|
|
/*
|
|
* High Level Configuration Options
|
|
* (easy to change)
|
|
*/
|
|
|
|
#define CONFIG_405CR 1 /* This is a PPC405CR CPU */
|
|
#define CONFIG_4xx 1 /* ...member of PPC4xx family */
|
|
#define CONFIG_CANBT 1 /* ...on a CANBT board */
|
|
|
|
#define CONFIG_BOARD_EARLY_INIT_F 1 /* call board_early_init_f() */
|
|
|
|
#define CONFIG_SYS_CLK_FREQ 25000000 /* external frequency to pll */
|
|
|
|
#define CONFIG_BAUDRATE 115200
|
|
#define CONFIG_BOOTDELAY 1 /* autoboot after 1 seconds */
|
|
|
|
#undef CONFIG_BOOTARGS
|
|
#define CONFIG_BOOTCOMMAND \
|
|
"setenv bootargs root=/dev/ram rw console=ttyS0,115200; " \
|
|
"bootm ffe00000 ffe80000"
|
|
|
|
#define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
|
|
#define CFG_LOADS_BAUD_CHANGE 1 /* allow baudrate change */
|
|
|
|
#undef CONFIG_PCI_PNP /* no pci plug-and-play */
|
|
|
|
#define CONFIG_PHY_ADDR 0 /* PHY address */
|
|
|
|
#define CONFIG_COMMANDS (( CONFIG_CMD_DFL | \
|
|
CFG_CMD_IRQ | \
|
|
CFG_CMD_EEPROM ) & \
|
|
~CFG_CMD_NET)
|
|
|
|
/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
|
|
#include <cmd_confdefs.h>
|
|
|
|
#undef CONFIG_WATCHDOG /* watchdog disabled */
|
|
|
|
#define CONFIG_SDRAM_BANK0 1 /* init onboard SDRAM bank 0 */
|
|
|
|
/*
|
|
* Miscellaneous configurable options
|
|
*/
|
|
#define CFG_LONGHELP /* undef to save memory */
|
|
#define CFG_PROMPT "=> " /* Monitor Command Prompt */
|
|
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
|
|
#define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
|
|
#else
|
|
#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
|
|
#endif
|
|
#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_CONSOLE_INFO_QUIET 1 /* don't print console @ startup*/
|
|
|
|
#define CFG_MEMTEST_START 0x0400000 /* memtest works on */
|
|
#define CFG_MEMTEST_END 0x0C00000 /* 4 ... 12 MB in DRAM */
|
|
|
|
#define CFG_EXT_SERIAL_CLOCK 14745600 /* use external serial clock */
|
|
|
|
/* The following table includes the supported baudrates */
|
|
#define CFG_BAUDRATE_TABLE \
|
|
{ 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, \
|
|
57600, 115200, 230400, 460800, 921600 }
|
|
|
|
#define CFG_LOAD_ADDR 0x100000 /* default load address */
|
|
#define CFG_EXTBDINFO 1 /* To use extended board_into (bd_t) */
|
|
|
|
#define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
|
|
|
|
#define CONFIG_ZERO_BOOTDELAY_CHECK /* check for keypress on bootdelay==0 */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Start addresses for the final memory configuration
|
|
* (Set up by the startup code)
|
|
* Please note that CFG_SDRAM_BASE _must_ start at 0
|
|
*/
|
|
#define CFG_SDRAM_BASE 0x00000000
|
|
#define CFG_FLASH_BASE 0xFFFE0000
|
|
#define CFG_MONITOR_BASE CFG_FLASH_BASE
|
|
#define CFG_MONITOR_LEN (128 * 1024) /* Reserve 128 kB for Monitor */
|
|
#define CFG_MALLOC_LEN (128 * 1024) /* Reserve 128 kB for malloc() */
|
|
|
|
/*
|
|
* For booting Linux, the board info and command line data
|
|
* have to be in the first 8 MB of memory, since this is
|
|
* the maximum mapped by the Linux kernel during initialization.
|
|
*/
|
|
#define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
|
|
/*-----------------------------------------------------------------------
|
|
* FLASH organization
|
|
*/
|
|
#define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
|
|
#define CFG_MAX_FLASH_SECT 256 /* max number of sectors on one chip */
|
|
|
|
#define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
|
|
#define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
|
|
|
|
#define CFG_FLASH_WORD_SIZE unsigned short /* flash word size (width) */
|
|
#define CFG_FLASH_ADDR0 0x5555 /* 1st address for flash config cycles */
|
|
#define CFG_FLASH_ADDR1 0x2AAA /* 2nd address for flash config cycles */
|
|
/*
|
|
* The following defines are added for buggy IOP480 byte interface.
|
|
* All other boards should use the standard values (CPCI405 etc.)
|
|
*/
|
|
#define CFG_FLASH_READ0 0x0000 /* 0 is standard */
|
|
#define CFG_FLASH_READ1 0x0001 /* 1 is standard */
|
|
#define CFG_FLASH_READ2 0x0002 /* 2 is standard */
|
|
|
|
#define CFG_FLASH_EMPTY_INFO /* print 'E' for empty sector on flinfo */
|
|
|
|
#if 0 /* Use FLASH for environment variables */
|
|
|
|
#define CFG_ENV_IS_IN_FLASH 1
|
|
#define CFG_ENV_OFFSET 0x00010000 /* Offset of Environment Sector */
|
|
#define CFG_ENV_SIZE 0x1000 /* Total Size of Environment Sector */
|
|
|
|
#define CFG_ENV_SECT_SIZE 0x10000 /* see README - env sector total size */
|
|
|
|
#else /* Use EEPROM for environment variables */
|
|
|
|
#define CFG_ENV_IS_IN_EEPROM 1 /* use EEPROM for environment vars */
|
|
#define CFG_ENV_OFFSET 0x000 /* environment starts at the beginning of the EEPROM */
|
|
#define CFG_ENV_SIZE 0x400 /* 1024 bytes may be used for env vars */
|
|
/* total size of a CAT24WC08 is 1024 bytes */
|
|
#endif
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* I2C EEPROM (CAT24WC08) for environment
|
|
*/
|
|
#define CONFIG_HARD_I2C /* I2C with hardware support */
|
|
#define CFG_I2C_SPEED 400000 /* I2C speed and slave address */
|
|
#define CFG_I2C_SLAVE 0x7F
|
|
|
|
#define CFG_I2C_EEPROM_ADDR 0x50 /* EEPROM CAT28WC08 */
|
|
#define CFG_I2C_EEPROM_ADDR_LEN 1 /* bytes of address */
|
|
/* mask of address bits that overflow into the "EEPROM chip address" */
|
|
#define CFG_I2C_EEPROM_ADDR_OVERFLOW 0x07
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Cache Configuration
|
|
*/
|
|
#define CFG_DCACHE_SIZE 8192 /* For IBM 405 CPUs */
|
|
#define CFG_CACHELINE_SIZE 32 /* ... */
|
|
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
|
|
#define CFG_CACHELINE_SHIFT 5 /* log base 2 of the above value */
|
|
#endif
|
|
|
|
/*
|
|
* Init Memory Controller:
|
|
*
|
|
* BR0/1 and OR0/1 (FLASH)
|
|
*/
|
|
|
|
#define FLASH_BASE0_PRELIM 0xFFC00000 /* FLASH bank #0 */
|
|
#define FLASH_BASE1_PRELIM 0 /* FLASH bank #1 */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* External Bus Controller (EBC) Setup
|
|
*/
|
|
|
|
/* Memory Bank 0 (Flash Bank 0) initialization */
|
|
#define CFG_EBC_PB0AP 0x92015480
|
|
#define CFG_EBC_PB0CR 0xFFC5A000 /* BAS=0xFFC,BS=4MB,BU=R/W,BW=16bit */
|
|
|
|
/* Memory Bank 1 (CAN/USB) initialization */
|
|
#define CFG_EBC_PB1AP 0x010053C0 /* enable Ready, BEM=1 */
|
|
#define CFG_EBC_PB1CR 0xF0018000 /* BAS=0xF00,BS=1MB,BU=R/W,BW=8bit */
|
|
|
|
/* Memory Bank 2 (Misc-IO/LEDs) initialization */
|
|
#define CFG_EBC_PB2AP 0x000004c0 /* no Ready, BEM=1 */
|
|
#define CFG_EBC_PB2CR 0xF0118000 /* BAS=0xF01,BS=1MB,BU=R/W,BW=8bit */
|
|
|
|
/* Memory Bank 3 (CAN Features) initialization */
|
|
#define CFG_EBC_PB3AP 0x80000040 /* no Ready, BEM=1 */
|
|
#define CFG_EBC_PB3CR 0xF021C000 /* BAS=0xF02,BS=1MB,BU=R/W,BW=32bit */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Definitions for initial stack pointer and data area (in RAM)
|
|
*/
|
|
#define CFG_INIT_RAM_ADDR 0x00ef0000 /* inside of SDRAM */
|
|
#define CFG_INIT_RAM_END 0x0f00 /* End of used area in RAM */
|
|
#define CFG_GBL_DATA_SIZE 64 /* size in bytes reserved for initial data */
|
|
#define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
|
|
#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
|
|
|
|
|
|
/*
|
|
* Internal Definitions
|
|
*
|
|
* Boot Flags
|
|
*/
|
|
#define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
|
|
#define BOOTFLAG_WARM 0x02 /* Software reboot */
|
|
|
|
#endif /* __CONFIG_H */
|