mirror of
https://github.com/AsahiLinux/u-boot
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afbf88993c
Minimal platform support to boot linux from SD. Supported devices/hw limited to external MMC/SD slot, GPIO, I2C and minimal PRCMU. Signed-off-by: John Rigby <john.rigby@linaro.org> CC: Albert Aribaud <albert.aribaud@free.fr>
245 lines
7.1 KiB
C
245 lines
7.1 KiB
C
/*
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* Copyright (C) ST-Ericsson SA 2009
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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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/*
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* High Level Configuration Options
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* (easy to change)
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*/
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#define CONFIG_U8500
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#define CONFIG_L2_OFF
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#define CONFIG_SYS_MEMTEST_START 0x00000000
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#define CONFIG_SYS_MEMTEST_END 0x1FFFFFFF
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#define CONFIG_SYS_HZ 1000 /* must be 1000 */
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#define CONFIG_BOARD_EARLY_INIT_F
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#define BOARD_LATE_INIT
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/*
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* Size of malloc() pool
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*/
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#ifdef CONFIG_BOOT_SRAM
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#define CONFIG_ENV_SIZE (32*1024)
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#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 64*1024)
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#else
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#define CONFIG_ENV_SIZE (128*1024)
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#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 256*1024)
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#endif
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#define CONFIG_SYS_GBL_DATA_SIZE 128 /* for initial data */
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/*
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* PL011 Configuration
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*/
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#define CONFIG_PL011_SERIAL
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#define CONFIG_PL011_SERIAL_RLCR
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#define CONFIG_PL011_SERIAL_FLUSH_ON_INIT
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/*
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* U8500 UART registers base for 3 serial devices
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*/
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#define CFG_UART0_BASE 0x80120000
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#define CFG_UART1_BASE 0x80121000
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#define CFG_UART2_BASE 0x80007000
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#define CFG_SERIAL0 CFG_UART0_BASE
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#define CFG_SERIAL1 CFG_UART1_BASE
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#define CFG_SERIAL2 CFG_UART2_BASE
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#define CONFIG_PL011_CLOCK 38400000
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#define CONFIG_PL01x_PORTS { (void *)CFG_SERIAL0, (void *)CFG_SERIAL1, \
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(void *)CFG_SERIAL2 }
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#define CONFIG_CONS_INDEX 2
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#define CONFIG_BAUDRATE 115200
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#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
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/*
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* Devices and file systems
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*/
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#define CONFIG_MMC
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#define CONFIG_GENERIC_MMC
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#define CONFIG_DOS_PARTITION
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/*
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* Commands
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*/
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#define CONFIG_CMD_MEMORY
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#define CONFIG_CMD_BOOTD
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#define CONFIG_CMD_BDI
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#define CONFIG_CMD_IMI
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#define CONFIG_CMD_MISC
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#define CONFIG_CMD_RUN
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#define CONFIG_CMD_ECHO
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#define CONFIG_CMD_CONSOLE
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#define CONFIG_CMD_LOADS
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#define CONFIG_CMD_LOADB
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#define CONFIG_CMD_MMC
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#define CONFIG_CMD_FAT
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#define CONFIG_CMD_EXT2
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#define CONFIG_CMD_EMMC
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#define CONFIG_CMD_SOURCE
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#define CONFIG_CMD_I2C
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#ifndef CONFIG_BOOTDELAY
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#define CONFIG_BOOTDELAY 1
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#endif
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#define CONFIG_ZERO_BOOTDELAY_CHECK /* check for keypress on bootdelay==0 */
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#undef CONFIG_BOOTARGS
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#define CONFIG_BOOTCOMMAND "run emmcboot"
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#define CONFIG_EXTRA_ENV_SETTINGS \
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"verify=n\0" \
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"loadaddr=0x00100000\0" \
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"console=ttyAMA2,115200n8\0" \
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"memargs256=mem=96M@0 mem_modem=32M@96M mem=30M@128M " \
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"pmem=22M@158M pmem_hwb=44M@180M mem_mali=32@224M\0" \
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"memargs512=mem=96M@0 mem_modem=32M@96M mem=44M@128M " \
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"pmem=22M@172M mem=30M@194M mem_mali=32M@224M " \
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"pmem_hwb=54M@256M mem=202M@310M\0" \
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"commonargs=setenv bootargs cachepolicy=writealloc noinitrd " \
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"init=init " \
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"board_id=${board_id} " \
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"logo.${logo} " \
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"startup_graphics=${startup_graphics}\0" \
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"emmcargs=setenv bootargs ${bootargs} " \
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"root=/dev/mmcblk0p2 " \
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"rootdelay=1\0" \
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"addcons=setenv bootargs ${bootargs} " \
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"console=${console}\0" \
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"emmcboot=echo Booting from eMMC ...; " \
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"run commonargs emmcargs addcons memargs;" \
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"mmc read 0 ${loadaddr} 0xA0000 0x4000;" \
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"bootm ${loadaddr}\0" \
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"flash=mmc init 1;fatload mmc 1 ${loadaddr} flash.scr;" \
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"source ${loadaddr}\0" \
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"loaduimage=mmc init 1;fatload mmc 1 ${loadaddr} uImage\0" \
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"usbtty=cdc_acm\0" \
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"stdout=serial,usbtty\0" \
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"stdin=serial,usbtty\0" \
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"stderr=serial,usbtty\0"
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/*
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* Miscellaneous configurable options
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*/
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#define CONFIG_SYS_LONGHELP /* undef to save memory */
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#define CONFIG_SYS_PROMPT "U8500 $ " /* Monitor Command Prompt */
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#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
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/* Print Buffer Size */
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#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \
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+ sizeof(CONFIG_SYS_PROMPT) + 16)
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#define CONFIG_SYS_MAXARGS 32 /* max number of command args */
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#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Arg Buffer Size */
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#undef CONFIG_SYS_CLKS_IN_HZ /* everything, incl board info, in Hz */
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#define CONFIG_SYS_LOAD_ADDR 0x00100000 /* default load address */
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#define CONFIG_SYS_LOADS_BAUD_CHANGE
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#define CONFIG_SYS_HUSH_PARSER
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#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
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#define CONFIG_CMDLINE_EDITING
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#define CONFIG_SETUP_MEMORY_TAGS 2
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#define CONFIG_INITRD_TAG
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#define CONFIG_CMDLINE_TAG /* enable passing of ATAGs */
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/*
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* I2C
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*/
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#define CONFIG_U8500_I2C
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#undef CONFIG_HARD_I2C /* I2C with hardware support */
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#undef CONFIG_SOFT_I2C /* I2C bit-banged */
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#define CONFIG_I2C_MULTI_BUS
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#define CONFIG_SYS_I2C_SPEED 100000
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#define CONFIG_SYS_I2C_SLAVE 0 /* slave addr of controller */
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#define CONFIG_SYS_U8500_I2C0_BASE 0x80004000
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#define CONFIG_SYS_U8500_I2C1_BASE 0x80122000
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#define CONFIG_SYS_U8500_I2C2_BASE 0x80128000
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#define CONFIG_SYS_U8500_I2C3_BASE 0x80110000
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#define CONFIG_SYS_U8500_I2C_BUS_MAX 4
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#define CONFIG_SYS_I2C_GPIOE_ADDR 0x42 /* GPIO expander chip addr */
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#define CONFIG_TC35892_GPIO
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/*
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* Stack sizes
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*
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* The stack sizes are set up in start.S using the settings below
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*/
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#ifdef CONFIG_USE_IRQ
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#define CONFIG_STACKSIZE_IRQ (4*1024) /* IRQ stack */
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#define CONFIG_STACKSIZE_FIQ (4*1024) /* FIQ stack */
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#endif
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/*
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* Physical Memory Map
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*/
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#define CONFIG_NR_DRAM_BANKS 1
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#define PHYS_SDRAM_1 0x00000000 /* DDR-SDRAM Bank #1 */
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#define PHYS_SDRAM_SIZE_1 0x20000000 /* 512 MB */
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/*
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* additions for new relocation code
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*/
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#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_1
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#define CONFIG_SYS_INIT_RAM_SIZE 0x100000
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#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_SDRAM_BASE + \
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CONFIG_SYS_INIT_RAM_SIZE - \
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GENERATED_GBL_DATA_SIZE)
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#define CONFIG_SYS_INIT_SP_ADDR CONFIG_SYS_GBL_DATA_OFFSET
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/* landing address before relocation */
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#ifndef CONFIG_SYS_TEXT_BASE
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#define CONFIG_SYS_TEXT_BASE 0x0
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#endif
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/*
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* MMC related configs
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* NB Only externa SD slot is currently supported
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*/
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#define MMC_BLOCK_SIZE 512
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#define CONFIG_ARM_PL180_MMCI
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#define CONFIG_ARM_PL180_MMCI_BASE 0x80126000 /* MMC base for 8500 */
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#define CONFIG_ARM_PL180_MMCI_CLOCK_FREQ 6250000
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#define CONFIG_MMC_DEV_NUM 1
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#define CONFIG_CMD_ENV
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#define CONFIG_CMD_SAVEENV /* CMD_ENV is obsolete but used in env_emmc.c */
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#define CONFIG_ENV_IS_IN_MMC
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#define CONFIG_ENV_OFFSET 0x13F80000
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#define CONFIG_SYS_MMC_ENV_DEV 0 /* SLOT2: eMMC */
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/*
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* FLASH and environment organization
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*/
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#define CONFIG_SYS_NO_FLASH
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/*
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* base register values for U8500
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*/
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#define CFG_PRCMU_BASE 0x80157000 /* Power, reset and clock
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management unit */
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#define CFG_FSMC_BASE 0x80000000 /* FSMC Controller */
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#endif /* __CONFIG_H */
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