From: Hiroshi DOYU <hdoyu@xxxxxxxxxx>
Add device tree support for Tegra30 IOMMU(SMMU).
Signed-off-by: Hiroshi DOYU <hdoyu@xxxxxxxxxx>
---
.../devicetree/bindings/arm/tegra/tegra30-smmu.txt | 19 +++++++++++++++++++
arch/arm/boot/dts/tegra30.dtsi | 10 ++++++++++
2 files changed, 29 insertions(+), 0 deletions(-)
diff --git a/Documentation/devicetree/bindings/arm/tegra/tegra30-smmu.txt b/Documentation/devicetree/bindings/arm/tegra/tegra30-smmu.txt
new file mode 100644
index 0000000..4bd8cd0
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/tegra/tegra30-smmu.txt
@@ -0,0 +1,19 @@
+NVIDIA Tegra 30 IOMMU H/W, SMMU (System Memory Management Unit)
+
+Required properties:
+- compatible : "nvidia,tegra30-smmu"
+- reg : Should contain MC registers location and length
+- reg : Should contain AHB Arbitration registers and length
+- reg : Should contain virtual address space range
+- interrupts : Should contain MC General interrupt
+
+Example:
+ smmu: smmu@7000f000 {
+ compatible = "nvidia,tegra30-smmu";
+ reg = < 0x7000f000 0x400 /* controller registers */
+ 0x6000c000 0x150 /* AHB Arbitration registers */
+ 0x00001000 0x3ffff000 >;/* Virtual address space range
+ * Exclude the 1st & last page
+ */
+ interrupts = < 0 13 0x40 >;
+ };
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index 62a7b39..c640a5b 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -183,4 +183,14 @@
reg = < 0x70000868 0xd0 /* Pad control registers */
0x70003000 0x3e0 >; /* Mux registers */
};
+
+ smmu: smmu@7000f000 {
+ compatible = "nvidia,tegra30-smmu";
+ reg = < 0x7000f000 0x400 /* controller registers */
+ 0x6000c000 0x150 /* AHB Arbitration registers */
+ 0x00001000 0x3ffff000 >;/* Virtual address space range
+ * Exclude the 1st & last page
+ */
+ interrupts = < 0 13 0x40 >;
+ };
};
--
1.7.5.4
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