[v4,2/3] arm64: dts: Add APM X-Gene DMA device and DMA clock DTS nodes

Commit Message

Rameshwar Prasad Sahu Jan. 21, 2015, 11:01 a.m. UTC

This patch adds the device tree node for APM X-Gene SoC
DMA controller and DMA clock.

Signed-off-by: Rameshwar Prasad Sahu <[e-mail]>
Signed-off-by: Loc Ho <[e-mail]>
---
 arch/arm64/boot/dts/apm/apm-storm.dtsi | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

--
1.8.2.1

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Patch

diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi
index f1ad9c2..1c0c8ca 100644
--- a/arch/arm64/boot/dts/apm/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi
@@ -102,6 +102,7 @@ 
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
+		dma-ranges = <0x0 0x0 0x0 0x0 0x400 0x0>;

 		clocks {
 			#address-cells = <2>;
@@ -352,6 +353,15 @@ 
 				reg-names = "csr-reg";
 				clock-output-names = "pcie4clk";
 			};
+
+			dmaclk: dmaclk@1f27c000 {
+				compatible = "apm,xgene-device-clock";
+				#clock-cells = <1>;
+				clocks = <&socplldiv2 0>;
+				reg = <0x0 0x1f27c000 0x0 0x1000>;
+				reg-names = "csr-reg";
+				clock-output-names = "dmaclk";
+			};
 		};

 		pcie0: pcie@1f2b0000 {
@@ -656,5 +666,21 @@ 
 			interrupts = <0x0 0x41 0x4>;
 			clocks = <&rngpkaclk 0>;
 		};
+
+		dma: dma@1f270000 {
+			compatible = "apm,xgene-dma";
+			device_type = "dma";
+			reg = <0x0 0x1f270000 0x0 0x10000>,
+			      <0x0 0x1f200000 0x0 0x10000>,
+			      <0x0 0x1b008000 0x0 0x2000>;
+			reg-names = "dma_csr", "ring_csr", "ring_cmd";
+			interrupts = <0x0 0x82 0x4>,
+				     <0x0 0xb8 0x4>,
+				     <0x0 0xb9 0x4>,
+				     <0x0 0xba 0x4>,
+				     <0x0 0xbb 0x4>;
+			dma-coherent;
+			clocks = <&dmaclk 0>;
+		};
 	};
 };