From 3d2deb0cdb69e85d05760c6c72189d7653709ee1 Mon Sep 17 00:00:00 2001 From: Krishna Reddy Date: Sat, 18 Jul 2020 12:34:56 -0700 Subject: dt-bindings: arm-smmu: add binding for Tegra194 SMMU Add binding for NVIDIA's Tegra194 SoC SMMU. Signed-off-by: Krishna Reddy Reviewed-by: Jon Hunter Reviewed-by: Rob Herring Reviewed-by: Robin Murphy Link: https://lore.kernel.org/r/20200718193457.30046-5-vdumpa@nvidia.com Signed-off-by: Will Deacon --- .../devicetree/bindings/iommu/arm,smmu.yaml | 25 +++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) (limited to 'Documentation/devicetree/bindings/iommu') diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml index 93fb9fe068b9..503160a7b9a0 100644 --- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml @@ -44,6 +44,11 @@ properties: items: - const: marvell,ap806-smmu-500 - const: arm,mmu-500 + - description: NVIDIA SoCs that program two ARM MMU-500s identically + items: + - enum: + - nvidia,tegra194-smmu + - const: nvidia,smmu-500 - items: - const: arm,mmu-500 - const: arm,smmu-v2 @@ -61,7 +66,8 @@ properties: - cavium,smmu-v2 reg: - maxItems: 1 + minItems: 1 + maxItems: 2 '#global-interrupts': description: The number of global interrupts exposed by the device. @@ -144,6 +150,23 @@ required: additionalProperties: false +allOf: + - if: + properties: + compatible: + contains: + enum: + - nvidia,tegra194-smmu + then: + properties: + reg: + minItems: 2 + maxItems: 2 + else: + properties: + reg: + maxItems: 1 + examples: - |+ /* SMMU with stream matching or stream indexing */ -- cgit v1.2.3