Re: [PATCH 1/1] arm/dts: Tegra30: Add device tree support for SMMU

From: Hiroshi DOYU <redacted>

Add device tree support for Tegra30 IOMMU(SMMU).

Signed-off-by: Hiroshi DOYU <redacted>
---
 .../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 >;
+	};
 };