mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 09:48:16 +00:00
06bffc6ea5
For some reason the AT91rm9200 lowlevel init writes to a bunch of reserved or read-only addresses. All the boards seem to define the value-to-be-written values as zero ... but they shouldn't actually be writing *anything* there. No documented erratum justifies these accesses. It looks like maybe some pre-release BDI-2000 setup code has been carried along by cargo cult programming since at least late 2004 (per GIT history). Here's a patch disabling what seems to be bogosity. Tested on a csb337; there were no behavioral changes. Signed-off-by: David Brownell <david-b@pacbell.net> on RM9200ek Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
237 lines
7.7 KiB
C
237 lines
7.7 KiB
C
/*
|
|
* 2004-2005 Gary Jennejohn <garyj@denx.de>
|
|
*
|
|
* Modified for the MP2USB by (C) Copyright 2005 Eric Benard
|
|
* ebenard@eukrea.com
|
|
*
|
|
* Configuration settings for the MP2USB 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
|
|
|
|
/* ARM asynchronous clock */
|
|
#define AT91C_MAIN_CLOCK 179712000 /* from 18.432 MHz crystal (18432000 / 4 * 45) */
|
|
#define AT91C_MASTER_CLOCK (AT91C_MAIN_CLOCK/3) /* peripheral clock */
|
|
|
|
#define AT91_SLOW_CLOCK 32768 /* slow clock */
|
|
|
|
#define CONFIG_ARM920T 1 /* This is an ARM920T Core */
|
|
#define CONFIG_AT91RM9200 1 /* It's an Atmel AT91RM9200 SoC */
|
|
#define CONFIG_AT91RM9200DK 1 /* on an AT91RM9200DK Board */
|
|
#define CONFIG_MP2USB 1 /* on an MP2USB Board */
|
|
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
|
|
#define USE_920T_MMU 1
|
|
|
|
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
|
|
#define CONFIG_SETUP_MEMORY_TAGS 1
|
|
#define CONFIG_INITRD_TAG 1
|
|
|
|
#define CONFIG_SYS_ATMEL_PLL_INIT_BUG 1
|
|
#ifndef CONFIG_SKIP_LOWLEVEL_INIT
|
|
#define CONFIG_SYS_USE_MAIN_OSCILLATOR 1
|
|
/* flash */
|
|
#define CONFIG_SYS_EBI_CFGR_VAL 0x00000000
|
|
#define CONFIG_SYS_SMC_CSR0_VAL 0x00003084 /* 16bit, 2 TDF, 4 WS */
|
|
|
|
/* clocks */
|
|
#define CONFIG_SYS_PLLAR_VAL 0x20263E04 /* 180 MHz for PCK */
|
|
#define CONFIG_SYS_PLLBR_VAL 0x1048bE0E /* 48 MHz (divider by 2 for USB) */
|
|
#define CONFIG_SYS_MCKR_VAL 0x00000202 /* PCK/3 = MCK Master Clock = 60MHz from PLLA */
|
|
|
|
/* sdram */
|
|
#define CONFIG_SYS_PIOC_ASR_VAL 0xFFFF0000 /* Configure PIOC as peripheral (D16/D31) */
|
|
#define CONFIG_SYS_PIOC_BSR_VAL 0x00000000
|
|
#define CONFIG_SYS_PIOC_PDR_VAL 0xFFFF0000
|
|
#define CONFIG_SYS_EBI_CSA_VAL 0x00000002 /* CS1=CONFIG_SYS_SDRAM */
|
|
#define CONFIG_SYS_SDRC_CR_VAL 0x3211295A /* set up the CONFIG_SYS_SDRAM */
|
|
#define CONFIG_SYS_SDRAM 0x20000000 /* address of the CONFIG_SYS_SDRAM */
|
|
#define CONFIG_SYS_SDRAM1 0x20000020 /* address of the CONFIG_SYS_SDRAM */
|
|
#define CONFIG_SYS_SDRAM_VAL 0x00000000 /* value written to CONFIG_SYS_SDRAM */
|
|
#define CONFIG_SYS_SDRC_MR_VAL 0x00000002 /* Precharge All */
|
|
#define CONFIG_SYS_SDRC_MR_VAL1 0x00000004 /* refresh */
|
|
#define CONFIG_SYS_SDRC_MR_VAL2 0x00000003 /* Load Mode Register */
|
|
#define CONFIG_SYS_SDRC_MR_VAL3 0x00000000 /* Normal Mode */
|
|
#define CONFIG_SYS_SDRC_TR_VAL 0x000002E0 /* Write refresh rate */
|
|
#else
|
|
#define CONFIG_SKIP_RELOCATE_UBOOT
|
|
#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
|
|
|
|
/*
|
|
* Size of malloc() pool
|
|
*/
|
|
#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 128*1024)
|
|
#define CONFIG_SYS_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
|
|
|
|
#define CONFIG_BAUDRATE 115200
|
|
|
|
#define CONFIG_SYS_AT91C_BRGR_DIVISOR 33 /* hardcode so no __divsi3 : AT91C_MASTER_CLOCK /(baudrate * 16) */
|
|
|
|
/*
|
|
* Hardware drivers
|
|
*/
|
|
|
|
/* define one of these to choose the DBGU, USART0 or USART1 as console */
|
|
#define CONFIG_AT91RM9200_USART
|
|
#define CONFIG_DBGU
|
|
#undef CONFIG_USART0
|
|
#undef CONFIG_USART1
|
|
|
|
#undef CONFIG_HWFLOW /* don't include RTS/CTS flow control support */
|
|
|
|
#undef CONFIG_MODEM_SUPPORT /* disable modem initialization stuff */
|
|
|
|
#define CONFIG_USB_OHCI_NEW 1
|
|
#define CONFIG_USB_KEYBOARD 1
|
|
#define CONFIG_USB_STORAGE 1
|
|
#define CONFIG_DOS_PARTITION 1
|
|
#define CONFIG_AT91C_PQFP_UHPBUG 1
|
|
|
|
#undef CONFIG_SYS_USB_OHCI_BOARD_INIT
|
|
#define CONFIG_SYS_USB_OHCI_CPU_INIT 1
|
|
#define CONFIG_SYS_USB_OHCI_REGS_BASE AT91_USB_HOST_BASE
|
|
#define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91rm9200"
|
|
#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 15
|
|
|
|
#undef CONFIG_HARD_I2C
|
|
|
|
#ifdef CONFIG_HARD_I2C
|
|
#define CONFIG_SYS_I2C_SPEED 0 /* not used */
|
|
#define CONFIG_SYS_I2C_SLAVE 0 /* not used */
|
|
#define CONFIG_RTC_RS5C372A /* RICOH I2C RTC */
|
|
#define CONFIG_SYS_I2C_RTC_ADDR 0x32
|
|
#define CONFIG_SYS_I2C_EEPROM_ADDR 0x50
|
|
#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1
|
|
#define CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW
|
|
#endif
|
|
/* still about 20 kB free with this defined */
|
|
#define CONFIG_SYS_LONGHELP
|
|
|
|
#define CONFIG_BOOTDELAY 3
|
|
|
|
#if !defined(CONFIG_HARD_I2C)
|
|
#define CONFIG_TIMESTAMP
|
|
#endif
|
|
|
|
|
|
/*
|
|
* BOOTP options
|
|
*/
|
|
#define CONFIG_BOOTP_BOOTFILESIZE
|
|
#define CONFIG_BOOTP_BOOTPATH
|
|
#define CONFIG_BOOTP_GATEWAY
|
|
#define CONFIG_BOOTP_HOSTNAME
|
|
|
|
|
|
/*
|
|
* Command line configuration.
|
|
*/
|
|
#include <config_cmd_default.h>
|
|
|
|
#define CONFIG_CMD_DHCP
|
|
#define CONFIG_CMD_NFS
|
|
#define CONFIG_CMD_SNTP
|
|
|
|
#if defined(CONFIG_HARD_I2C)
|
|
|
|
#define CONFIG_CMD_DATE
|
|
#define CONFIG_CMD_EEPROM
|
|
#define CONFIG_CMD_I2C
|
|
#define CONFIG_CMD_MISC
|
|
|
|
#else
|
|
|
|
#define CONFIG_CMD_CACHE
|
|
#define CONFIG_CMD_USB
|
|
|
|
#undef CONFIG_CMD_BDI
|
|
#undef CONFIG_CMD_FPGA
|
|
#undef CONFIG_CMD_IMI
|
|
#undef CONFIG_CMD_LOADS
|
|
#undef CONFIG_CMD_MISC
|
|
#undef CONFIG_CMD_SOURCE
|
|
|
|
#endif
|
|
|
|
|
|
#define CONFIG_SYS_LONGHELP
|
|
|
|
#define CONFIG_NR_DRAM_BANKS 1
|
|
#define PHYS_SDRAM 0x20000000
|
|
#define PHYS_SDRAM_SIZE 0x08000000 /* 128 megs */
|
|
|
|
#define CONFIG_SYS_MEMTEST_START PHYS_SDRAM
|
|
#define CONFIG_SYS_MEMTEST_END CONFIG_SYS_MEMTEST_START + PHYS_SDRAM_SIZE - 262144
|
|
|
|
#define CONFIG_DRIVER_ETHER
|
|
#define CONFIG_NET_RETRY_COUNT 20
|
|
#undef CONFIG_AT91C_USE_RMII
|
|
|
|
#define PHYS_FLASH_1 0x10000000
|
|
#define PHYS_FLASH_SIZE 0x1000000 /* 16 megs main flash */
|
|
#define CONFIG_SYS_FLASH_BASE PHYS_FLASH_1
|
|
#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
|
|
#define CONFIG_SYS_MAX_FLASH_BANKS 1
|
|
#define CONFIG_SYS_MAX_FLASH_SECT 256
|
|
#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 */
|
|
#define CONFIG_SYS_FLASH_LOCK_TOUT (10*CONFIG_SYS_HZ) /* Timeout for Flash Set Lock Bit */
|
|
#define CONFIG_SYS_FLASH_UNLOCK_TOUT (10*CONFIG_SYS_HZ) /* Timeout for Flash Clear Lock Bits */
|
|
#define CONFIG_SYS_FLASH_PROTECTION /* "Real" (hardware) sectors protection */
|
|
|
|
#define CONFIG_ENV_IS_IN_FLASH 1
|
|
#define CONFIG_ENV_OFFSET 0x20000 /* after u-boot.bin */
|
|
#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE+CONFIG_ENV_OFFSET)
|
|
#define CONFIG_ENV_SIZE 0x20000
|
|
|
|
#define CONFIG_SYS_LOAD_ADDR 0x21000000 /* default load address */
|
|
|
|
#define CONFIG_SYS_BAUDRATE_TABLE { 115200, 57600, 38400, 19200, 9600 }
|
|
|
|
#define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */
|
|
#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
|
|
#define CONFIG_SYS_MAXARGS 32 /* max number of command args */
|
|
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
|
|
|
|
#define CONFIG_SYS_STDIO_DEREGISTER /* needs stdio_deregister */
|
|
|
|
#define CONFIG_SYS_HZ 1000
|
|
#define CONFIG_SYS_HZ_CLOCK (AT91C_MASTER_CLOCK/2) /* AT91C_TC0_CMR is implicitly set to */
|
|
/* AT91C_TC_TIMER_DIV1_CLOCK */
|
|
|
|
#define CONFIG_STACKSIZE (32*1024) /* regular stack */
|
|
|
|
#ifdef CONFIG_USE_IRQ
|
|
#error CONFIG_USE_IRQ not supported
|
|
#endif
|
|
|
|
#define CONFIG_SYS_DEVICE_NULLDEV 1 /* enble null device */
|
|
#undef CONFIG_SILENT_CONSOLE /* enable silent startup */
|
|
|
|
#define CONFIG_AUTOBOOT_KEYED
|
|
#define CONFIG_AUTOBOOT_PROMPT \
|
|
"Press SPACE to abort autoboot in %d seconds\n", bootdelay
|
|
#define CONFIG_AUTOBOOT_STOP_STR " "
|
|
#define CONFIG_AUTOBOOT_DELAY_STR "d"
|
|
|
|
#define CONFIG_VERSION_VARIABLE 1 /* include version env variable */
|
|
|
|
#endif /* __CONFIG_H */
|