[PATCH v2 0/2] Add support for booting into userspace fastboot
Roman Kovalivskyi
roman.kovalivskyi at globallogic.com
Thu Jun 4 09:55:47 CEST 2020
Android 10 adds support for dynamic partitions and in order to support
them userspace fastboot must be used[1]. New tool called fastbootd is included
into recovery image.
Userspace fastboot works from recovery and is launched if:
1) - Dynamic partitioning is enabled
2) - Boot control block has 'boot-fastboot' value into command field
The bootloader is expected[2] to load and boot into the recovery image upon
seeing boot-fastboot in the BCB command. Recovery then parses the BCB
message and switches to fastbootd mode.
Please note that boot script is expected to handle 'boot-fastboot' command
in BCB and load into recovery mode.
Bootloader must support[3] 'reboot fastboot' command which should reboot
device into userspace fastboot to accomodate those changes.
Another command that bootloader must support[3] is 'reboot recovery'. This
command should simply reboot device into recovery mode.
Changes since v1[4]:
* Added missing handling of reboot commands for network protocol
* Extended fastboot_set_reboot_flag command to accept reboot reason
* Made former fastboot_set_flag function as an optional implementation of
fastboot_set_reboot_flag which could be turned on by Kconfig
[1] - https://source.android.com/devices/bootloader/fastbootd
[2] - https://source.android.com/devices/bootloader/fastbootd#unified_fastboot_and_recovery
[3] - https://source.android.com/devices/bootloader/fastbootd#modifications_to_the_bootloader
[4] - http://patchwork.ozlabs.org/project/uboot/cover/cover.1590539734.git.roman.kovalivskyi@globallogic.com/
Roman Kovalivskyi (1):
fastboot: add default fastboot_set_reboot_flag implementation
Roman Stratiienko (1):
fastboot: add support for 'reboot fastboot' command
arch/arm/mach-meson/board-common.c | 7 ++++-
arch/arm/mach-rockchip/board.c | 7 ++++-
board/amazon/kc1/kc1.c | 7 ++++-
board/lg/sniper/sniper.c | 7 ++++-
board/ti/am57xx/board.c | 7 ++++-
board/ti/dra7xx/evm.c | 7 ++++-
drivers/fastboot/Kconfig | 9 +++++++
drivers/fastboot/fb_command.c | 40 +++++++++++++++++++++++++++-
drivers/fastboot/fb_common.c | 42 +++++++++++++++++++++++++++++-
drivers/usb/gadget/f_fastboot.c | 2 ++
include/fastboot.h | 13 ++++++++-
net/fastboot.c | 2 ++
12 files changed, 141 insertions(+), 9 deletions(-)
--
2.17.1
More information about the U-Boot
mailing list