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-rw-r--r--Documentation/devicetree/bindings/iommu/arm,smmu.yaml11
1 files changed, 9 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
index 9d27aa5111d4..1181b590db71 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
@@ -54,8 +54,14 @@ properties:
- const: arm,mmu-500
- description: NVIDIA SoCs that program two ARM MMU-500s identically
items:
+ - description: NVIDIA SoCs that require memory controller interaction
+ and may program multiple ARM MMU-500s identically with the memory
+ controller interleaving translations between multiple instances
+ for improved performance.
+ items:
- enum:
- - nvidia,tegra194-smmu
+ - const: nvidia,tegra194-smmu
+ - const: nvidia,tegra186-smmu
- const: nvidia,smmu-500
- items:
- const: arm,mmu-500
@@ -165,10 +171,11 @@ allOf:
contains:
enum:
- nvidia,tegra194-smmu
+ - nvidia,tegra186-smmu
then:
properties:
reg:
- minItems: 2
+ minItems: 1
maxItems: 2
else:
properties: