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提交 e762232f 编写于 作者: J Jon Hunter 提交者： Thierry Reding
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arm64: tegra: Add ISO SMMU controller for Tegra194 

The display controllers are attached to a separate ARM SMMU instance
that is dedicated to servicing isochronous memory clients. Add this ISO
instance of the ARM SMMU to device tree.

Please note that the display controllers are not hooked up to this SMMU
yet, because we are still missing a means to transition framebuffers
used by the bootloader to the kernel.

This based upon an initial patch by Thierry Reding <treding@nvidia.com>.
Signed-off-by: NJon Hunter <jonathanh@nvidia.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>
上级 f7eb2785
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arch/arm64/boot/dts/nvidia/tegra194.dtsi
浏览文件 @ e762232f
...@@ -1508,6 +1508,82 @@ ...@@ -1508,6 +1508,82 @@
}; };
iommu@10000000 {
compatible = "nvidia,tegra194-smmu", "nvidia,smmu-500";
reg = <0x10000000 0x800000>;
interrupts = <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>;
stream-match-mask = <0x7f80>;
#global-interrupts = <1>;
#iommu-cells = <1>;
nvidia,memory-controller = <&mc>;
status = "okay";
};
smmu: iommu@12000000 { smmu: iommu@12000000 {
compatible = "nvidia,tegra194-smmu", "nvidia,smmu-500"; compatible = "nvidia,tegra194-smmu", "nvidia,smmu-500";
reg = <0x12000000 0x800000>, reg = <0x12000000 0x800000>,
......
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