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https://github.com/brain-hackers/u-boot-brain
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![Dirk Behme](/assets/img/avatar_default.png)
To be able to load the device tree and initrd correctly, set the fdt_high and initrd_high environment variables. Using 0xffffffff implies that the device tree and the initrd are initially copied to working addresses. This will avoid an additional copy. Loading the device tree to 0x30000000 and the initrd to 0x3c000000 should work for both boards, the ARM2 and SabreLite. Example (SabreLite): fatload mmc 0:2 0x10000000 uImage fatload mmc 0:2 0x3c000000 uInitrd fatload mmc 0:2 0x30000000 board.dtb bootm 0x10000000 0x3c000000 0x30000000 Note: This requires that the kernel has CONFIG_HIGHMEM enabled. Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> CC: Jason Liu <jason.hui@linaro.org> CC: Stefano Babic <sbabic@denx.de> Acked-by: Jason Liu <jason.hui@linaro.org>
173 lines
4.8 KiB
C
173 lines
4.8 KiB
C
/*
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* Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
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*
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* Configuration settings for the Freescale i.MX6Q Armadillo2 board.
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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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#define CONFIG_MX6Q
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#define CONFIG_SYS_MX6_HCLK 24000000
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#define CONFIG_SYS_MX6_CLK32 32768
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#define CONFIG_DISPLAY_CPUINFO
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#define CONFIG_DISPLAY_BOARDINFO
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#include <asm/arch/imx-regs.h>
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#define CONFIG_CMDLINE_TAG
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#define CONFIG_SETUP_MEMORY_TAGS
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#define CONFIG_INITRD_TAG
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/* Size of malloc() pool */
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#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 2 * 1024 * 1024)
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#define CONFIG_ARCH_CPU_INIT
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#define CONFIG_BOARD_EARLY_INIT_F
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#define CONFIG_MXC_GPIO
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#define CONFIG_MXC_UART
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#define CONFIG_MXC_UART_BASE UART4_BASE
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/* MMC Configs */
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#define CONFIG_FSL_ESDHC
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#define CONFIG_FSL_USDHC
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#define CONFIG_SYS_FSL_ESDHC_ADDR 0
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#define CONFIG_SYS_FSL_USDHC_NUM 2
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#define CONFIG_MMC
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#define CONFIG_CMD_MMC
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#define CONFIG_GENERIC_MMC
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#define CONFIG_CMD_FAT
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#define CONFIG_DOS_PARTITION
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#define CONFIG_CMD_PING
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#define CONFIG_CMD_DHCP
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#define CONFIG_CMD_MII
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#define CONFIG_CMD_NET
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#define CONFIG_FEC_MXC
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#define CONFIG_MII
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#define IMX_FEC_BASE ENET_BASE_ADDR
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#define CONFIG_FEC_XCV_TYPE RGMII
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#define CONFIG_FEC_MXC_PHYADDR 0
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/* allow to overwrite serial and ethaddr */
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#define CONFIG_ENV_OVERWRITE
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#define CONFIG_CONS_INDEX 1
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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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/* Command definition */
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#include <config_cmd_default.h>
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#undef CONFIG_CMD_IMLS
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#define CONFIG_BOOTDELAY 3
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#define CONFIG_LOADADDR 0x10800000
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#define CONFIG_SYS_TEXT_BASE 0x17800000
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#define CONFIG_EXTRA_ENV_SETTINGS \
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"script=boot.scr\0" \
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"uimage=uImage\0" \
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"console=ttymxc3\0" \
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"fdt_high=0xffffffff\0" \
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"initrd_high=0xffffffff\0" \
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"mmcdev=1\0" \
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"mmcpart=2\0" \
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"mmcroot=/dev/mmcblk0p3 rootwait rw\0" \
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"mmcargs=setenv bootargs console=${console},${baudrate} " \
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"root=${mmcroot}\0" \
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"loadbootscript=" \
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"fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
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"bootscript=echo Running bootscript from mmc ...; " \
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"source\0" \
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"loaduimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${uimage}\0" \
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"mmcboot=echo Booting from mmc ...; " \
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"run mmcargs; " \
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"bootm\0" \
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"netargs=setenv bootargs console=${console},${baudrate} " \
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"root=/dev/nfs " \
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"ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
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"netboot=echo Booting from net ...; " \
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"run netargs; " \
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"dhcp ${uimage}; bootm\0" \
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#define CONFIG_BOOTCOMMAND \
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"mmc dev ${mmcdev};" \
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"if mmc rescan ${mmcdev}; then " \
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"if run loadbootscript; then " \
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"run bootscript; " \
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"else " \
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"if run loaduimage; then " \
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"run mmcboot; " \
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"else run netboot; " \
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"fi; " \
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"fi; " \
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"else run netboot; fi"
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#define CONFIG_ARP_TIMEOUT 200UL
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/* Miscellaneous configurable options */
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#define CONFIG_SYS_LONGHELP
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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_SYS_PROMPT "MX6QARM2 U-Boot > "
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#define CONFIG_AUTO_COMPLETE
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#define CONFIG_SYS_CBSIZE 256
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/* Print Buffer Size */
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#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
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#define CONFIG_SYS_MAXARGS 16
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#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
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#define CONFIG_SYS_MEMTEST_START 0x10000000
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#define CONFIG_SYS_MEMTEST_END 0x10010000
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#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR
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#define CONFIG_SYS_HZ 1000
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#define CONFIG_CMDLINE_EDITING
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#define CONFIG_STACKSIZE (128 * 1024)
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/* Physical Memory Map */
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#define CONFIG_NR_DRAM_BANKS 1
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#define PHYS_SDRAM MMDC0_ARB_BASE_ADDR
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#define PHYS_SDRAM_SIZE (2u * 1024 * 1024 * 1024)
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#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM
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#define CONFIG_SYS_INIT_RAM_ADDR IRAM_BASE_ADDR
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#define CONFIG_SYS_INIT_RAM_SIZE IRAM_SIZE
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#define CONFIG_SYS_INIT_SP_OFFSET \
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(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
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#define CONFIG_SYS_INIT_SP_ADDR \
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(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
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/* FLASH and environment organization */
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#define CONFIG_SYS_NO_FLASH
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#define CONFIG_ENV_OFFSET (6 * 64 * 1024)
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#define CONFIG_ENV_SIZE (8 * 1024)
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#define CONFIG_ENV_IS_IN_MMC
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#define CONFIG_SYS_MMC_ENV_DEV 1
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#define CONFIG_OF_LIBFDT
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#endif /* __CONFIG_H */
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