[PATCH v4] dts: Add ability to build fallback DTBOs from arch/$(ARCH)/dts

[Fabio Estevam]

On Wed, Oct 16, 2024 at 10:09 PM Marek Vasut <marex at denx.de> wrote:
>
> Currently the enablement of OF_UPSTREAM results on the build system
> searching for DTs only in dts/upstream/ . There are platforms which
> use U-Boot specific DTBOs applied on top of U-Boot control DT during
> SPL stage, and source DTs for these are located in arch/$(ARCH)/dtb.
>
> Add dedicated 'dtbos' target which builds only .dtbos and not .dtbs and
> in case CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS is enabled, build
> this target for arch/$(ARCH)/dtb to generate local U-Boot specific DTBOs.
>
> Adjust top level Makefile so binman would search for .dtb and .dtbo in
> both OF_UPSTREAM specific paths and arch/$(ARCH)/dtb for the .dtbo case
> in case CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS is enabled.
>
> Reviewed-by: Sumit Garg <sumit.garg at linaro.org>
> Signed-off-by: Marek Vasut <marex at denx.de>

Applied this one and 2/2 from v3, thanks.