ARM: tegra: Add video decoder on Tegra20

Add a device tree node for the Video Decoder Engine found on Tegra20
SoCs.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra20.dtsi

@@ -16,6 +16,11 @@ iram@40000000 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges = <0 0x40000000 0x40000>;
+
+		vde_pool: vde {
+			reg = <0x400 0x3fc00>;
+			pool;
+		};
 	};
 
 	host1x@50000000 {
@@ -258,6 +263,28 @@ gpio: gpio@6000d000 {
 		*/
 	};
 
+	vde@6001a000 {
+		compatible = "nvidia,tegra20-vde";
+		reg = <0x6001a000 0x1000   /* Syntax Engine */
+		       0x6001b000 0x1000   /* Video Bitstream Engine */
+		       0x6001c000  0x100   /* Macroblock Engine */
+		       0x6001c200  0x100   /* Post-processing Engine */
+		       0x6001c400  0x100   /* Motion Compensation Engine */
+		       0x6001c600  0x100   /* Transform Engine */
+		       0x6001c800  0x100   /* Pixel prediction block */
+		       0x6001ca00  0x100   /* Video DMA */
+		       0x6001d800  0x300>; /* Video frame controls */
+		reg-names = "sxe", "bsev", "mbe", "ppe", "mce",
+			    "tfe", "ppb", "vdma", "frameid";
+		iram = <&vde_pool>; /* IRAM region */
+		interrupts = <GIC_SPI  9 IRQ_TYPE_LEVEL_HIGH>, /* Sync token interrupt */
+			     <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>, /* BSE-V interrupt */
+			     <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>; /* SXE interrupt */
+		interrupt-names = "sync-token", "bsev", "sxe";
+		clocks = <&tegra_car TEGRA20_CLK_VDE>;
+		resets = <&tegra_car 61>;
+	};
+
 	apbmisc@70000800 {
 		compatible = "nvidia,tegra20-apbmisc";
 		reg = <0x70000800 0x64   /* Chip revision */