diff options
| author | Sam Protsenko <semen.protsenko@linaro.org> | 2019-07-25 16:20:41 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-07-31 13:08:07 -0400 |
| commit | 3db0989e68ee23db9d5ae970304890100b4fb9bb (patch) | |
| tree | 613b98f9e8c367c08e07f1407b2740e96c03df0b /include/environment | |
| parent | a239147fa2c0c3fe849ccaffd72c4dc4cae2be71 (diff) | |
env: ti: boot: Handle reboot reason from BCB
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>
Diffstat (limited to 'include/environment')
| -rw-r--r-- | include/environment/ti/boot.h | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/include/environment/ti/boot.h b/include/environment/ti/boot.h index e55a4aec57..684a744f31 100644 --- a/include/environment/ti/boot.h +++ b/include/environment/ti/boot.h @@ -98,6 +98,10 @@ #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" \ @@ -117,6 +121,28 @@ "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; " \ @@ -176,8 +202,7 @@ "if test ${dofastboot} -eq 1; then " \ "echo Boot fastboot requested, resetting dofastboot ...;" \ "setenv dofastboot 0; saveenv;" \ - "echo Booting into fastboot ...; " \ - "fastboot " __stringify(CONFIG_FASTBOOT_USB_DEV) "; " \ + FASTBOOT_CMD \ "fi;" \ "if test ${boot_fit} -eq 1; then " \ "run update_to_fit;" \ |