diff options
Diffstat (limited to 'dts/Bindings/iommu/arm,smmu.yaml')
| -rw-r--r-- | dts/Bindings/iommu/arm,smmu.yaml | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/dts/Bindings/iommu/arm,smmu.yaml b/dts/Bindings/iommu/arm,smmu.yaml index da5381c8ee..76fc2c0f4d 100644 --- a/dts/Bindings/iommu/arm,smmu.yaml +++ b/dts/Bindings/iommu/arm,smmu.yaml @@ -37,8 +37,10 @@ properties: - qcom,sc7180-smmu-500 - qcom,sc7280-smmu-500 - qcom,sc8180x-smmu-500 + - qcom,sc8280xp-smmu-500 - qcom,sdm845-smmu-500 - qcom,sdx55-smmu-500 + - qcom,sdx65-smmu-500 - qcom,sm6350-smmu-500 - qcom,sm8150-smmu-500 - qcom,sm8250-smmu-500 @@ -62,8 +64,9 @@ properties: for improved performance. items: - enum: - - nvidia,tegra194-smmu - nvidia,tegra186-smmu + - nvidia,tegra194-smmu + - nvidia,tegra234-smmu - const: nvidia,smmu-500 - items: - const: arm,mmu-500 @@ -157,6 +160,17 @@ properties: power-domains: maxItems: 1 + nvidia,memory-controller: + description: | + A phandle to the memory controller on NVIDIA Tegra186 and later SoCs. + The memory controller needs to be programmed with a mapping of memory + client IDs to ARM SMMU stream IDs. + + If this property is absent, the mapping programmed by early firmware + will be used and it is not guaranteed that IOMMU translations will be + enabled for any given device. + $ref: /schemas/types.yaml#/definitions/phandle + required: - compatible - reg @@ -172,13 +186,20 @@ allOf: compatible: contains: enum: - - nvidia,tegra194-smmu - nvidia,tegra186-smmu + - nvidia,tegra194-smmu + - nvidia,tegra234-smmu then: properties: reg: minItems: 1 maxItems: 2 + + # The reference to the memory controller is required to ensure that the + # memory client to stream ID mapping can be done synchronously with the + # IOMMU attachment. + required: + - nvidia,memory-controller else: properties: reg: |