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| author | Roman Kovalivskyi <roman.kovalivskyi@globallogic.com> | 2020-07-28 23:35:33 +0300 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2020-09-01 14:47:43 +0200 |
| commit | 2b2a771b40876c3db456705d5dcc5b60249d4075 (patch) | |
| tree | a9ab46ae3a6769975306d315a431ffb73fe2217a /drivers/fastboot | |
| parent | 851737ab8922742732bea5f70407cb95cafcb3ee (diff) | |
| download | u-boot-2b2a771b40876c3db456705d5dcc5b60249d4075.tar.gz u-boot-2b2a771b40876c3db456705d5dcc5b60249d4075.tar.bz2 u-boot-2b2a771b40876c3db456705d5dcc5b60249d4075.zip | |
fastboot: Add support for 'reboot fastboot' command
Android 10 adds support for dynamic partitions and in order to support
this userspace fastboot must be used[1]. New tool fastbootd is
included into recovery.
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 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[2].
Please note that boot script is expected to handle 'boot-fastboot'
command in BCB and load into recovery mode.
Bootloader must support 'reboot fastboot' command which should reboot
device into userspace fastboot to accomodate those changes[3].
Another command that bootloader must support[3] is 'reboot recovery'. This
command should simply reboot device into recovery mode.
[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
Signed-off-by: Roman Kovalivskyi <roman.kovalivskyi@globallogic.com>
Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
Change-Id: I9d2bdc9a6f6f31ea98572fe155e1cc8341e9af76
Diffstat (limited to 'drivers/fastboot')
| -rw-r--r-- | drivers/fastboot/fb_command.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/fastboot/fb_command.c b/drivers/fastboot/fb_command.c index 8ce5d32fb2..d3c578672d 100644 --- a/drivers/fastboot/fb_command.c +++ b/drivers/fastboot/fb_command.c @@ -37,6 +37,8 @@ static void flash(char *, char *); static void erase(char *, char *); #endif static void reboot_bootloader(char *, char *); +static void reboot_fastbootd(char *, char *); +static void reboot_recovery(char *, char *); #if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_FORMAT) static void oem_format(char *, char *); #endif @@ -79,6 +81,14 @@ static const struct { .command = "reboot-bootloader", .dispatch = reboot_bootloader }, + [FASTBOOT_COMMAND_REBOOT_FASTBOOTD] = { + .command = "reboot-fastboot", + .dispatch = reboot_fastbootd + }, + [FASTBOOT_COMMAND_REBOOT_RECOVERY] = { + .command = "reboot-recovery", + .dispatch = reboot_recovery + }, [FASTBOOT_COMMAND_SET_ACTIVE] = { .command = "set_active", .dispatch = okay @@ -313,6 +323,34 @@ static void reboot_bootloader(char *cmd_parameter, char *response) fastboot_okay(NULL, response); } +/** + * reboot_fastbootd() - Sets reboot fastboot flag. + * + * @cmd_parameter: Pointer to command parameter + * @response: Pointer to fastboot response buffer + */ +static void reboot_fastbootd(char *cmd_parameter, char *response) +{ + if (fastboot_set_reboot_flag(FASTBOOT_REBOOT_REASON_FASTBOOTD)) + fastboot_fail("Cannot set fastboot flag", response); + else + fastboot_okay(NULL, response); +} + +/** + * reboot_recovery() - Sets reboot recovery flag. + * + * @cmd_parameter: Pointer to command parameter + * @response: Pointer to fastboot response buffer + */ +static void reboot_recovery(char *cmd_parameter, char *response) +{ + if (fastboot_set_reboot_flag(FASTBOOT_REBOOT_REASON_RECOVERY)) + fastboot_fail("Cannot set recovery flag", response); + else + fastboot_okay(NULL, response); +} + #if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_FORMAT) /** * oem_format() - Execute the OEM format command |