Re: [PATCH v4 3/4] dt-bindings: arm-smmu: add compatible string for Marvell Armada-AP806 SMMU-500

From: Robin Murphy
Date: Wed Jul 15 2020 - 06:36:51 EST


On 2020-07-15 08:06, Tomasz Nowicki wrote:
Add specific compatible string for Marvell usage due to errata of
accessing 64bits registers of ARM SMMU, in AP806.

AP806 SoC uses the generic ARM-MMU500, and there's no specific
implementation of Marvell, this compatible is used for errata only.

Reviewed-by: Robin Murphy <robin.murphy@xxxxxxx>

Presumably Will can pick up these first 3 patches for 5.9 and #4 can go via arm-soc.

Robin.

Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Hanna Hawa <hannah@xxxxxxxxxxx>
Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxx>
Signed-off-by: Tomasz Nowicki <tn@xxxxxxxxxxxx>
---
Documentation/devicetree/bindings/iommu/arm,smmu.yaml | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
index d7ceb4c34423..156b38924a00 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
@@ -38,6 +38,10 @@ properties:
- qcom,sc7180-smmu-500
- qcom,sdm845-smmu-500
- const: arm,mmu-500
+ - description: Marvell SoCs implementing "arm,mmu-500"
+ items:
+ - const: marvell,ap806-smmu-500
+ - const: arm,mmu-500
- items:
- const: arm,mmu-500
- const: arm,smmu-v2