[PATCH v2 1/2] dt-bindings: iommu: arm,smmu-v3: Add arm,instdata-override property
Rob Herring (Arm)
robh at kernel.org
Thu Sep 24 07:41:49 PDT 2026
On Fri, 11 Sep 2026 21:21:05 +0000, Peter Griffin wrote:
> arm,instdata-override DT property is intended to be used for SMMUs that
> have a silicon integration issue with the AxPROT[2] signal always being 1
> making all transactions appear as instructions.
>
> Google Tensor G5 (Laguna) is an example of an SoC with this silicon
> erratum. The DT property can be specified to enable a software
> workaround which overrides the incoming attribute to data.
>
> Signed-off-by: Peter Griffin <peter.griffin at linaro.org>
> ---
> ---
> Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
Reviewed-by: Rob Herring (Arm) <robh at kernel.org>
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