On Tue, 24 Dec 2019 at 12:55, Sam Protsenko semen.protsenko@linaro.org wrote:
This command can be used to extract fields and image payloads from Android Boot Image. It can be used for example to implement boot flow where dtb is taken from boot.img (as v2 incorporated dtb inside of boot.img). Using this command, one can obtain needed dtb blob from boot.img in scripting manner, and then apply needed dtbo's (from "dtbo" partition) on top of that, providing then the resulting image to bootm command in order to boot the Android.
Also right now this command has the sub-command to get an address and size of recovery dtbo from recovery image (for non-A/B devices only, see [1,2] for details).
It can be tested like this:
=> mmc dev 1 => part start mmc 1 boot_a boot_start => part size mmc 1 boot_a boot_size => mmc read $loadaddr $boot_start $boot_size => abootimg get ver => abootimg dump dtb[1] https://source.android.com/devices/bootloader/boot-image-header [2] https://source.android.com/devices/architecture/dto/partitions
Signed-off-by: Sam Protsenko semen.protsenko@linaro.org
cmd/Kconfig | 8 ++ cmd/Makefile | 1 + cmd/abootimg.c | 242 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 251 insertions(+) create mode 100644 cmd/abootimg.c
Reviewed-by: Simon Glass sjg@chromium.org
Can we have a test please?