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-rw-r--r--dts/Bindings/iommu/rockchip,iommu.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/dts/Bindings/iommu/rockchip,iommu.txt b/dts/Bindings/iommu/rockchip,iommu.txt
index 2098f77..6ecefea 100644
--- a/dts/Bindings/iommu/rockchip,iommu.txt
+++ b/dts/Bindings/iommu/rockchip,iommu.txt
@@ -14,6 +14,11 @@ Required properties:
"single-master" device, and needs no additional information
to associate with its master device. See:
Documentation/devicetree/bindings/iommu/iommu.txt
+- clocks : A list of clocks required for the IOMMU to be accessible by
+ the host CPU.
+- clock-names : Should contain the following:
+ "iface" - Main peripheral bus clock (PCLK/HCL) (required)
+ "aclk" - AXI bus clock (required)
Optional properties:
- rockchip,disable-mmu-reset : Don't use the mmu reset operation.
@@ -27,5 +32,7 @@ Example:
reg = <0xff940300 0x100>;
interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "vopl_mmu";
+ clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>;
+ clock-names = "aclk", "iface";
#iommu-cells = <0>;
};