Add DMA controller node for Actions Semi S500 SoC.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Reviewed-by: Manivannan Sadhasivam <redacted>
---
Changes in v3:
  - Added Reviewed-by from Mani

  arch/arm/boot/dts/owl-s500.dtsi | 14 ++++++++++++++
  1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/owl-s500.dtsi b/arch/arm/boot/dts/owl-s500.dtsi
index a57ce7d6d745..449e9807c4ec 100644
--- a/arch/arm/boot/dts/owl-s500.dtsi
+++ b/arch/arm/boot/dts/owl-s500.dtsi

@@ -207,5 +207,19 @@ sps: power-controller@b01b0100 {
  			reg = <0xb01b0100 0x100>;
  			#power-domain-cells = <1>;
  		};
+
+		dma: dma-controller@b0260000 {
+			compatible = "actions,s500-dma";
+			reg = <0xb0260000 0xd00>;
+			interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
+			#dma-cells = <1>;
+			dma-channels = <12>;
+			dma-requests = <46>;
+			clocks = <&cmu CLK_DMAC>;
+			power-domains = <&sps S500_PD_DMA>;
+		};
  	};
  };