starfive-tech/u-boot.git/include/configs/meson64_android.h, branch rtthread_AMP

configs: meson64_android: boot android via abootimg

2021-08-10T08:43:54+00:00

Since Android 10, we are required to use a "dtbo" partition which includes the various device-tree overlays [1]. It's also possible to provide a "dtb" partition. This is supported via the "abootimg" command. On Yukawa, the assumption is that we have only a "dtbo" partition, which includes all board dtbs and their dtbos [2] [1] https://source.android.com/devices/architecture/dto/partitions [2] https://android.googlesource.com/device/amlogic/yukawa/+/refs/heads/master/build/tasks/dtimages.mk#16 Signed-off-by: Guillaume La Roque Signed-off-by: Mattijs Korpershoek Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong

configs: meson64_android: define BOOT_CMD macro

2021-08-10T08:43:54+00:00

BOOT_CMD might be different based on CONFIG_CMD_ABOOTIMG. To prepare for abootimg support, extract the boot command to a dedicated macro. Signed-off-by: Guillaume La Roque Signed-off-by: Mattijs Korpershoek Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong

configs: meson64_android: implement A/B slot support

2021-08-10T08:43:54+00:00

Implement A/B slot selection using the U-Boot ab_select command. Keep support for non A/B. Not: We need to redefine the recovery partition label, as RecoveryOS is included in the boot image for A/B systems [1] [1] https://source.android.com/devices/tech/ota/ab/ab_implement#recovery Signed-off-by: Guillaume La Roque Signed-off-by: Mattijs Korpershoek Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong

configs: meson64_android: implement AVB support

2021-08-10T08:43:54+00:00

AVB (Android Verified Boot) is well supported in U-Boot already. Add support for it in meson64_android. This is controlled by the "force_avb" environment variable and the CONFIG_CMD_AVB option. Signed-off-by: Guillaume La Roque Signed-off-by: Mattijs Korpershoek Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong

configs: meson64_android: increase SYS_MALLOC_LEN to 128M for AVB

2021-08-10T08:43:54+00:00

To prepare for AVB support, increase SYS_MALLOC_LEN to 128M. This value has been found by testing the following on khadas vim3l: => avb init => avb verify Signed-off-by: Mattijs Korpershoek Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong

configs: meson64_android: reboot to fastbootd from bootloader

2021-07-30T12:54:03+00:00

Whenever we test for boot-fastboot in the BCB, it means that Android wants us to boot into recovery with a special mode (fastbootd). Force reboot into recovery in that case. Note: we don't erase the bcb on purpose here: recoveryOS needs to read the BCB as well to know if it boots into regular recovery mode or fastbootd mode. Signed-off-by: Mattijs Korpershoek Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong

configs: meson64_android: implement recovery boot via BCB

2021-07-30T12:54:03+00:00

Right now meson64_android does not know how to boot into Android Recovery: it simply falls back to "fastboot" mode in the bootloader. Implement the boot to recovery. While at it, use the standard BCB way instead of a sm for consistency. Signed-off-by: Mattijs Korpershoek Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong

configs: meson64_android: use BCB for reboot to bootloader

2021-07-30T12:54:03+00:00

As of today, we use a "vendor specific" secure monitor call for the reboot reason (sm). We should not need this. Android uses the BCB (Bootloader Control Block) to communicate with the bootloader. Implement "reboot into bootloader" using the standard BCB way instead of using sm calls. Signed-off-by: Mattijs Korpershoek Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong

configs: meson64_android: don't set console bootargs

2021-07-29T09:37:26+00:00

The console bootargs are already set from the kernel commandline. On Android, this is done in yukawa at [1] Don't set it in the bootloader since it's overridden by the kernel anyways. [1] https://android-review.googlesource.com/c/device/amlogic/yukawa/+/1112994 Signed-off-by: Guillaume La Roque Signed-off-by: Mattijs Korpershoek Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong

configs: meson64_android: use logo part label instead of index

2021-07-29T09:37:23+00:00

To display the bootup logo, we read the gpt and assume that the partition with index "2" will be the "logo" partition. This might not always be the case, and it's very error-prone. Load the logo partition by label instead of by index. Signed-off-by: Guillaume La Roque Signed-off-by: Mattijs Korpershoek Acked-by: Neil Armstrong Signed-off-by: Neil Armstrong