Add MMC controller nodes for Actions Semi S500 SoC, in order to
facilitate access to SD/EMMC/SDIO cards.

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

  arch/arm/boot/dts/owl-s500.dtsi | 33 +++++++++++++++++++++++++++++++++
  1 file changed, 33 insertions(+)

diff --git a/arch/arm/boot/dts/owl-s500.dtsi b/arch/arm/boot/dts/owl-s500.dtsi
index b16172615db0..7af7c9e1119d 100644
--- a/arch/arm/boot/dts/owl-s500.dtsi
+++ b/arch/arm/boot/dts/owl-s500.dtsi

@@ -241,5 +241,38 @@ dma: dma-controller@b0260000 {
  			clocks = <&cmu CLK_DMAC>;
  			power-domains = <&sps S500_PD_DMA>;
  		};
+
+		mmc0: mmc@b0230000 {
+			compatible = "actions,s500-mmc", "actions,owl-mmc";
+			reg = <0xb0230000 0x38>;
+			interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cmu CLK_SD0>;
+			resets = <&cmu RESET_SD0>;
+			dmas = <&dma 2>;
+			dma-names = "mmc";
+			status = "disabled";
+		};
+
+		mmc1: mmc@b0234000 {
+			compatible = "actions,s500-mmc", "actions,owl-mmc";
+			reg = <0xb0234000 0x38>;
+			interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cmu CLK_SD1>;
+			resets = <&cmu RESET_SD1>;
+			dmas = <&dma 3>;
+			dma-names = "mmc";
+			status = "disabled";
+		};
+
+		mmc2: mmc@b0238000 {
+			compatible = "actions,s500-mmc", "actions,owl-mmc";
+			reg = <0xb0238000 0x38>;
+			interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cmu CLK_SD2>;
+			resets = <&cmu RESET_SD2>;
+			dmas = <&dma 4>;
+			dma-names = "mmc";
+			status = "disabled";
+		};
  	};
  };