ARM: dts: atlas7: add software digital radio nodes and its DMA channels

this patch adds SDR(software digital raio) nodes and the DMA channels
for it.
Signed-off-by: Yonghui Zhang <yonghui.zhang@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>

arch/arm/boot/dts/atlas7.dtsi

@@ -1370,11 +1370,42 @@ gpum {
 			compatible = "arteris, flexnoc", "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
-			ranges = <0x13000000 0x13000000 0x3000>;
+			ranges = <0x13000000 0x13000000 0x3000>,
+				<0x13010000 0x13010000 0x1400>,
+				<0x13010800 0x13010800 0x100>,
+				<0x13011000 0x13011000 0x100>;
 			gpum@0x13000000 {
 				compatible = "sirf,nocfw-gpum";
 				reg = <0x13000000 0x3000>;
 			};
+			dmacsdrr: dma-controller@13010800 {
+				cell-index = <5>;
+				compatible = "sirf,atlas7-dmac-v2";
+				reg = <0x13010800 0x100>;
+				interrupts = <0 8 0>;
+				clocks = <&car 127>;
+				#dma-cells = <1>;
+				#dma-channels = <1>;
+			};
+			dmacsdrw: dma-controller@13011000 {
+				cell-index = <6>;
+				compatible = "sirf,atlas7-dmac-v2";
+				reg = <0x13011000 0x100>;
+				interrupts = <0 9 0>;
+				clocks = <&car 127>;
+				#dma-cells = <1>;
+				#dma-channels = <1>;
+			};
+			sdr@0x13010000 {
+				compatible = "sirf,atlas7-sdr";
+				reg = <0x13010000 0x1400>;
+				interrupts = <0 7 0>,
+					   <0 8 0>,
+					   <0 9 0>;
+				clocks = <&car 127>;
+				dmas = <&dmacsdrr 0>, <&dmacsdrw 0>;
+				dma-names = "tx", "rx";
+			};
 		};
 
 		mediam {