Re: [PATCH 1/7] dt-bindings: sram: Document Allwinner H616 VE SRAM

[Rob Herring (Arm)]

On Wed, 25 Mar 2026 00:43:49 +0800, Chen-Yu Tsai wrote:
> The Allwinner H616 has two switchable peripheral SRAM regions:
> 
> - The VE SRAM is a 2 MB dedicated SRAM for the Video Engine. CPU access
>   to this region is enabled by default. CPU access can be disabled,
>   after which reads will show the same stale value for all addresses,
>   while writes are ignored.
> 
>   The mux value for this region is different from previous generations,
>   and thus needs a completely new compatible.
> 
> - The SRAM C region is an alias of the first 128 KB of VE SRAM, plus 64
>   KB of DE SRAM. The latter is otherwise unaccessible from the CPU. When
>   CPU access is disabled, the whole region reads as zero, while writes
>   are ignored.
> 
>   The mux value for this region is the same as on the A64 and H6. The
>   existing compatible for the A64 already covers this.
> 
> Add the compatible for the VE SRAM to the list of covered compatibles in
> the generic SRAM region binding.
> 
> Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/sram/sram.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 

Acked-by: Rob Herring (Arm) <robh@xxxxxxxxxx>