mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-02 01:19:49 +00:00
a23e277c4a
This cleans up the SDRAM initialization and related code a bit, and
allows faster booting.
* Add definitions for EBI and internal SRAM to asm/arch/memory-map.h
* Remove memory test from sdram_init() and make caller responsible
for verifying the SDRAM and determining its size.
* Remove base_address member from struct sdram_config (was sdram_info)
* Add data_bits member to struct sdram_config and kill CFG_SDRAM_16BIT
* Add support for a common STK1000 hack: 16MB SDRAM instead of 8.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
185 lines
4.8 KiB
C
185 lines
4.8 KiB
C
/*
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* Copyright (C) 2007 Atmel Corporation
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*
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* Configuration settings for the ATSTK1003 CPU daughterboard
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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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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#include <asm/arch/memory-map.h>
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#define CONFIG_AVR32 1
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#define CONFIG_AT32AP 1
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#define CONFIG_AT32AP7001 1
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#define CONFIG_ATSTK1003 1
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#define CONFIG_ATSTK1000 1
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#define CONFIG_ATSTK1000_EXT_FLASH 1
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/*
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* Timer clock frequency. We're using the CPU-internal COUNT register
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* for this, so this is equivalent to the CPU core clock frequency
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*/
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#define CFG_HZ 1000
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/*
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* Set up the PLL to run at 140 MHz, the CPU to run at the PLL
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* frequency, the HSB and PBB at 1/2, and the PBA to run at 1/4 the
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* PLL frequency.
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* (CFG_OSC0_HZ * CFG_PLL0_MUL) / CFG_PLL0_DIV = PLL MHz
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*/
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#define CONFIG_PLL 1
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#define CFG_POWER_MANAGER 1
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#define CFG_OSC0_HZ 20000000
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#define CFG_PLL0_DIV 1
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#define CFG_PLL0_MUL 7
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#define CFG_PLL0_SUPPRESS_CYCLES 16
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/*
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* Set the CPU running at:
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* PLL / (2^CFG_CLKDIV_CPU) = CPU MHz
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*/
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#define CFG_CLKDIV_CPU 0
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/*
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* Set the HSB running at:
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* PLL / (2^CFG_CLKDIV_HSB) = HSB MHz
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*/
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#define CFG_CLKDIV_HSB 1
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/*
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* Set the PBA running at:
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* PLL / (2^CFG_CLKDIV_PBA) = PBA MHz
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*/
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#define CFG_CLKDIV_PBA 2
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/*
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* Set the PBB running at:
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* PLL / (2^CFG_CLKDIV_PBB) = PBB MHz
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*/
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#define CFG_CLKDIV_PBB 1
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/*
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* The PLLOPT register controls the PLL like this:
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* icp = PLLOPT<2>
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* ivco = PLLOPT<1:0>
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*
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* We want icp=1 (default) and ivco=0 (80-160 MHz) or ivco=2 (150-240MHz).
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*/
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#define CFG_PLL0_OPT 0x04
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#undef CONFIG_USART0
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#define CONFIG_USART1 1
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#undef CONFIG_USART2
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#undef CONFIG_USART3
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/* User serviceable stuff */
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#define CONFIG_DOS_PARTITION 1
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#define CONFIG_CMDLINE_TAG 1
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#define CONFIG_SETUP_MEMORY_TAGS 1
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#define CONFIG_INITRD_TAG 1
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#define CONFIG_STACKSIZE (2048)
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#define CONFIG_BAUDRATE 115200
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#define CONFIG_BOOTARGS \
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"console=ttyS0 root=/dev/mmcblk0p1 rootwait"
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#define CONFIG_BOOTCOMMAND \
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"mmcinit; ext2load mmc 0:1 0x10400000 /boot/uImage; bootm"
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/*
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* Only interrupt autoboot if <space> is pressed. Otherwise, garbage
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* data on the serial line may interrupt the boot sequence.
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*/
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#define CONFIG_BOOTDELAY 1
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#define CONFIG_AUTOBOOT 1
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#define CONFIG_AUTOBOOT_KEYED 1
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#define CONFIG_AUTOBOOT_PROMPT \
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"Press SPACE to abort autoboot in %d seconds\n"
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#define CONFIG_AUTOBOOT_DELAY_STR "d"
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#define CONFIG_AUTOBOOT_STOP_STR " "
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/*
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* Command line configuration.
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*/
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#include <config_cmd_default.h>
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#define CONFIG_CMD_ASKENV
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#define CONFIG_CMD_EXT2
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#define CONFIG_CMD_FAT
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#define CONFIG_CMD_JFFS2
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#define CONFIG_CMD_MMC
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#undef CONFIG_CMD_FPGA
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#undef CONFIG_CMD_NET
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#undef CONFIG_CMD_NFS
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#undef CONFIG_CMD_SETGETDCR
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#undef CONFIG_CMD_XIMG
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#define CONFIG_ATMEL_USART 1
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#define CONFIG_PIO2 1
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#define CFG_HSDRAMC 1
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#define CONFIG_MMC 1
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#define CFG_DCACHE_LINESZ 32
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#define CFG_ICACHE_LINESZ 32
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#define CONFIG_NR_DRAM_BANKS 1
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/* External flash on STK1000 */
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#if 0
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#define CFG_FLASH_CFI 1
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#define CFG_FLASH_CFI_DRIVER 1
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#endif
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#define CFG_FLASH_BASE 0x00000000
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#define CFG_FLASH_SIZE 0x800000
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#define CFG_MAX_FLASH_BANKS 1
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#define CFG_MAX_FLASH_SECT 135
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#define CFG_MONITOR_BASE CFG_FLASH_BASE
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#define CFG_INTRAM_BASE INTERNAL_SRAM_BASE
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#define CFG_INTRAM_SIZE INTERNAL_SRAM_SIZE
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#define CFG_SDRAM_BASE EBI_SDRAM_BASE
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#define CFG_ENV_IS_IN_FLASH 1
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#define CFG_ENV_SIZE 65536
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#define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_FLASH_SIZE - CFG_ENV_SIZE)
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#define CFG_INIT_SP_ADDR (CFG_INTRAM_BASE + CFG_INTRAM_SIZE)
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#define CFG_MALLOC_LEN (256*1024)
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/* Allow 4MB for the kernel run-time image */
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#define CFG_LOAD_ADDR (EBI_SDRAM_BASE + 0x00400000)
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#define CFG_BOOTPARAMS_LEN (16 * 1024)
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/* Other configuration settings that shouldn't have to change all that often */
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#define CFG_PROMPT "U-Boot> "
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#define CFG_CBSIZE 256
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#define CFG_MAXARGS 16
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#define CFG_PBSIZE (CFG_CBSIZE + sizeof(CFG_PROMPT) + 16)
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#define CFG_LONGHELP 1
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#define CFG_MEMTEST_START EBI_SDRAM_BASE
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#define CFG_MEMTEST_END (CFG_MEMTEST_START + 0x700000)
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#define CFG_BAUDRATE_TABLE { 115200, 38400, 19200, 9600, 2400 }
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#endif /* __CONFIG_H */
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