[U-Boot] [PATCH v2 5/5] fdt: boot_get_fdt: android: use ENV 'fdtaddr' as fallback

[sjg at google.com]

Hi Eugeniu,

On Mon, 1 Apr 2019 at 03:54, Eugeniu Rosca <erosca at de.adit-jv.com> wrote:
>
> Our platform doesn't store the DTB into the Android image second area,
> but rather copies the DTB to RAM from a dedicated dtb.img partition [0],
> prior to booting the Android image by calling bootm.
>
> Similar to [1], we find it useful to just call 'bootm' and have the
> right DTB being passed to OS (assuming its address has been previously
> stored in 'fdtaddr' by calling `fdt addr <dtb-addr>`).
>
> Booting Android with DTB from 'fdtaddr' will only occur if:
>  - No DTB is embedded in the second area of Android image
>  - 'fdtaddr' points to a valid DTB in RAM
>
> [0] https://source.android.com/devices/architecture/dto/partitions
> [1] https://patchwork.ozlabs.org/patch/1046652/
>     ("Support boot Android image without address on bootm command")
>
> Signed-off-by: Eugeniu Rosca <erosca at de.adit-jv.com>
> ---
> Changes in v2:
>  - Removed fdt_totalsize() computation, since FDT size verification is
>    only relevant for blobs embedded in U-Boot-supported images
>  - Link v1: https://patchwork.ozlabs.org/patch/1071591/
> ---
>  common/image-fdt.c | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)

Reviewed-by: Simon Glass <sjg at chromium.org>

We could really use a simple test of Android booting (not the whole
process, just the setup and the different cases we support)

Regards,
Simon

Applied to u-boot-dm, thanks!