mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-05 20:54:31 +00:00
3db0989e68
In case of Android boot, reboot reason can be written into BCB (usually it's an area in 'misc' partition). U-Boot then can obtain that reboot reason from BCB and handle it accordingly to achieve correct Android boot flow, like it was suggested in [1]: - if it's empty: perform normal Android boot from eMMC - if it contains "bootonce-bootloader": get into fastboot mode - if it contains "boot-recovery": perform recovery boot The latter is not implemented yet, as it depends on some features that are not implemented on TI platforms yet (in AOSP and in U-Boot). [1] https://marc.info/?l=u-boot&m=152508418909737&w=2 Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
219 lines
6.8 KiB
C
219 lines
6.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Boot related environment variable definitions on TI boards.
|
|
*
|
|
* (C) Copyright 2017 Linaro Ltd.
|
|
* Sam Protsenko <semen.protsenko@linaro.org>
|
|
*/
|
|
|
|
#ifndef __TI_BOOT_H
|
|
#define __TI_BOOT_H
|
|
|
|
#ifndef CONSOLEDEV
|
|
#define CONSOLEDEV "ttyS2"
|
|
#endif
|
|
|
|
#define VBMETA_PART_SIZE (64 * 1024)
|
|
|
|
#if defined(CONFIG_LIBAVB)
|
|
#define VBMETA_PART \
|
|
"name=vbmeta,size=" __stringify(VBMETA_PART_SIZE) \
|
|
",uuid=${uuid_gpt_vbmeta};"
|
|
#else
|
|
#define VBMETA_PART ""
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_AB_SELECT)
|
|
#define COMMON_PARTS \
|
|
"name=boot_a,size=20M,uuid=${uuid_gpt_boot_a};" \
|
|
"name=boot_b,size=20M,uuid=${uuid_gpt_boot_b};" \
|
|
"name=system_a,size=1024M,uuid=${uuid_gpt_system_a};" \
|
|
"name=system_b,size=1024M,uuid=${uuid_gpt_system_b};"
|
|
#else
|
|
#define COMMON_PARTS \
|
|
"name=boot,size=20M,uuid=${uuid_gpt_boot};" \
|
|
"name=system,size=1024M,uuid=${uuid_gpt_system};"
|
|
#endif
|
|
|
|
#ifndef PARTS_DEFAULT
|
|
/* Define the default GPT table for eMMC */
|
|
#define PARTS_DEFAULT \
|
|
/* Linux partitions */ \
|
|
"uuid_disk=${uuid_gpt_disk};" \
|
|
"name=bootloader,start=384K,size=1792K,uuid=${uuid_gpt_bootloader};" \
|
|
"name=rootfs,start=2688K,size=-,uuid=${uuid_gpt_rootfs}\0" \
|
|
/* Android partitions */ \
|
|
"partitions_android=" \
|
|
"uuid_disk=${uuid_gpt_disk};" \
|
|
"name=xloader,start=128K,size=256K,uuid=${uuid_gpt_xloader};" \
|
|
"name=bootloader,size=2048K,uuid=${uuid_gpt_bootloader};" \
|
|
"name=uboot-env,start=2432K,size=256K,uuid=${uuid_gpt_reserved};" \
|
|
"name=misc,size=128K,uuid=${uuid_gpt_misc};" \
|
|
"name=recovery,size=40M,uuid=${uuid_gpt_recovery};" \
|
|
COMMON_PARTS \
|
|
"name=vendor,size=256M,uuid=${uuid_gpt_vendor};" \
|
|
VBMETA_PART \
|
|
"name=userdata,size=-,uuid=${uuid_gpt_userdata}"
|
|
#endif /* PARTS_DEFAULT */
|
|
|
|
#if defined(CONFIG_CMD_AVB)
|
|
#define AVB_VERIFY_CHECK "if run avb_verify; then " \
|
|
"echo AVB verification OK.;" \
|
|
"set bootargs $bootargs $avb_bootargs;" \
|
|
"else " \
|
|
"echo AVB verification failed.;" \
|
|
"exit; fi;"
|
|
#define AVB_VERIFY_CMD "avb_verify=avb init 1; avb verify;\0"
|
|
#else
|
|
#define AVB_VERIFY_CHECK ""
|
|
#define AVB_VERIFY_CMD ""
|
|
#endif
|
|
|
|
#define CONTROL_PARTITION "misc"
|
|
|
|
#if defined(CONFIG_CMD_AB_SELECT)
|
|
#define AB_SELECT \
|
|
"if part number mmc 1 " CONTROL_PARTITION " control_part_number; " \
|
|
"then " \
|
|
"echo " CONTROL_PARTITION \
|
|
" partition number:${control_part_number};" \
|
|
"ab_select slot_name mmc ${mmcdev}:${control_part_number};" \
|
|
"else " \
|
|
"echo " CONTROL_PARTITION " partition not found;" \
|
|
"exit;" \
|
|
"fi;" \
|
|
"setenv slot_suffix _${slot_name};" \
|
|
"if part number mmc ${mmcdev} system${slot_suffix} " \
|
|
"system_part_number; then " \
|
|
"setenv bootargs_ab " \
|
|
"ro root=/dev/mmcblk${mmcdev}p${system_part_number} " \
|
|
"rootwait init=/init skip_initramfs " \
|
|
"androidboot.slot_suffix=${slot_suffix};" \
|
|
"echo A/B cmdline addition: ${bootargs_ab};" \
|
|
"setenv bootargs ${bootargs} ${bootargs_ab};" \
|
|
"else " \
|
|
"echo system${slot_suffix} partition not found;" \
|
|
"fi;"
|
|
#else
|
|
#define AB_SELECT ""
|
|
#endif
|
|
|
|
#define FASTBOOT_CMD \
|
|
"echo Booting into fastboot ...; " \
|
|
"fastboot " __stringify(CONFIG_FASTBOOT_USB_DEV) "; "
|
|
|
|
#define DEFAULT_COMMON_BOOT_TI_ARGS \
|
|
"console=" CONSOLEDEV ",115200n8\0" \
|
|
"fdtfile=undefined\0" \
|
|
"bootpart=0:2\0" \
|
|
"bootdir=/boot\0" \
|
|
"bootfile=zImage\0" \
|
|
"usbtty=cdc_acm\0" \
|
|
"vram=16M\0" \
|
|
AVB_VERIFY_CMD \
|
|
"partitions=" PARTS_DEFAULT "\0" \
|
|
"optargs=\0" \
|
|
"dofastboot=0\0" \
|
|
"emmc_linux_boot=" \
|
|
"echo Trying to boot Linux from eMMC ...; " \
|
|
"setenv mmcdev 1; " \
|
|
"setenv bootpart 1:2; " \
|
|
"setenv mmcroot /dev/mmcblk0p2 rw; " \
|
|
"run mmcboot;\0" \
|
|
"emmc_android_boot=" \
|
|
"if bcb load " __stringify(CONFIG_FASTBOOT_FLASH_MMC_DEV) " " \
|
|
CONTROL_PARTITION "; then " \
|
|
"if bcb test command = bootonce-bootloader; then " \
|
|
"echo BCB: Bootloader boot...; " \
|
|
"bcb clear command; bcb store; " \
|
|
FASTBOOT_CMD \
|
|
"elif bcb test command = boot-recovery; then " \
|
|
"echo BCB: Recovery boot...; " \
|
|
"echo Warning: recovery is not implemented; " \
|
|
"echo Performing normal boot for now...; " \
|
|
"bcb clear command; bcb store; " \
|
|
"run emmc_android_normal_boot; " \
|
|
"else " \
|
|
"echo BCB: Normal boot requested...; " \
|
|
"run emmc_android_normal_boot; " \
|
|
"fi; " \
|
|
"else " \
|
|
"echo Warning: BCB is corrupted or does not exist; " \
|
|
"echo Performing normal boot...; " \
|
|
"run emmc_android_normal_boot; " \
|
|
"fi;\0" \
|
|
"emmc_android_normal_boot=" \
|
|
"echo Trying to boot Android from eMMC ...; " \
|
|
"run update_to_fit; " \
|
|
"setenv eval_bootargs setenv bootargs $bootargs; " \
|
|
"run eval_bootargs; " \
|
|
"setenv mmcdev 1; " \
|
|
"setenv machid fe6; " \
|
|
"mmc dev $mmcdev; " \
|
|
"mmc rescan; " \
|
|
AVB_VERIFY_CHECK \
|
|
AB_SELECT \
|
|
"if part start mmc ${mmcdev} boot${slot_suffix} boot_start; " \
|
|
"then " \
|
|
"part size mmc ${mmcdev} boot${slot_suffix} " \
|
|
"boot_size; " \
|
|
"mmc read ${loadaddr} ${boot_start} ${boot_size}; " \
|
|
"bootm ${loadaddr}#${fdtfile}; " \
|
|
"else " \
|
|
"echo boot${slot_suffix} partition not found; " \
|
|
"fi;\0"
|
|
|
|
#ifdef CONFIG_OMAP54XX
|
|
|
|
#define DEFAULT_FDT_TI_ARGS \
|
|
"findfdt="\
|
|
"if test $board_name = omap5_uevm; then " \
|
|
"setenv fdtfile omap5-uevm.dtb; fi; " \
|
|
"if test $board_name = dra7xx; then " \
|
|
"setenv fdtfile dra7-evm.dtb; fi;" \
|
|
"if test $board_name = dra72x-revc; then " \
|
|
"setenv fdtfile dra72-evm-revc.dtb; fi;" \
|
|
"if test $board_name = dra72x; then " \
|
|
"setenv fdtfile dra72-evm.dtb; fi;" \
|
|
"if test $board_name = dra71x; then " \
|
|
"setenv fdtfile dra71-evm.dtb; fi;" \
|
|
"if test $board_name = dra76x_acd; then " \
|
|
"setenv fdtfile dra76-evm.dtb; fi;" \
|
|
"if test $board_name = beagle_x15; then " \
|
|
"setenv fdtfile am57xx-beagle-x15.dtb; fi;" \
|
|
"if test $board_name = beagle_x15_revb1; then " \
|
|
"setenv fdtfile am57xx-beagle-x15-revb1.dtb; fi;" \
|
|
"if test $board_name = beagle_x15_revc; then " \
|
|
"setenv fdtfile am57xx-beagle-x15-revc.dtb; fi;" \
|
|
"if test $board_name = am572x_idk; then " \
|
|
"setenv fdtfile am572x-idk.dtb; fi;" \
|
|
"if test $board_name = am574x_idk; then " \
|
|
"setenv fdtfile am574x-idk.dtb; fi;" \
|
|
"if test $board_name = am57xx_evm; then " \
|
|
"setenv fdtfile am57xx-beagle-x15.dtb; fi;" \
|
|
"if test $board_name = am57xx_evm_reva3; then " \
|
|
"setenv fdtfile am57xx-beagle-x15.dtb; fi;" \
|
|
"if test $board_name = am571x_idk; then " \
|
|
"setenv fdtfile am571x-idk.dtb; fi;" \
|
|
"if test $fdtfile = undefined; then " \
|
|
"echo WARNING: Could not determine device tree to use; fi; \0"
|
|
|
|
#define CONFIG_BOOTCOMMAND \
|
|
"if test ${dofastboot} -eq 1; then " \
|
|
"echo Boot fastboot requested, resetting dofastboot ...;" \
|
|
"setenv dofastboot 0; saveenv;" \
|
|
FASTBOOT_CMD \
|
|
"fi;" \
|
|
"if test ${boot_fit} -eq 1; then " \
|
|
"run update_to_fit;" \
|
|
"fi;" \
|
|
"run findfdt; " \
|
|
"run envboot; " \
|
|
"run mmcboot;" \
|
|
"run emmc_linux_boot; " \
|
|
"run emmc_android_boot; " \
|
|
""
|
|
|
|
#endif /* CONFIG_OMAP54XX */
|
|
|
|
#endif /* __TI_BOOT_H */
|