iommu/arm-smmu: support MMU-401

MMU-401 is similar to MMU-400, but updated with limited ARMv8 support.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

2 files changed, 2 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.txt b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
index 2d0f7cd867ea..06760503a819 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.txt
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
@@ -14,6 +14,7 @@ conditions.
                         "arm,smmu-v1"
                         "arm,smmu-v2"
                         "arm,mmu-400"
+                        "arm,mmu-401"
                         "arm,mmu-500"
 
                   depending on the particular implementation and/or the
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index c00f483e106f..939242c41100 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1889,6 +1889,7 @@ static struct of_device_id arm_smmu_of_match[] = {
         { .compatible = "arm,smmu-v1", .data = (void *)ARM_SMMU_V1 },
         { .compatible = "arm,smmu-v2", .data = (void *)ARM_SMMU_V2 },
         { .compatible = "arm,mmu-400", .data = (void *)ARM_SMMU_V1 },
+        { .compatible = "arm,mmu-401", .data = (void *)ARM_SMMU_V1 },
         { .compatible = "arm,mmu-500", .data = (void *)ARM_SMMU_V2 },
         { },
 };