dm: exynos: Bring in pinctrl dts files from Linux kernel

Bring in required device tree files for pinctrl from Linux v3.14. These
are initially unchanged and have a number of pieces not needed by U-Boot.

Note that exynos5420 is renamed to exynos54xx here since we want to
support exynos5422 also.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/dts/exynos5250.dtsi b/arch/arm/dts/exynos5250.dtsi
index 771f8d3..16581dd 100644
--- a/arch/arm/dts/exynos5250.dtsi
+++ b/arch/arm/dts/exynos5250.dtsi
@@ -6,8 +6,46 @@
  */
 
 #include "exynos5.dtsi"
+#include "exynos5250-pinctrl.dtsi"
 
 / {
+	aliases {
+		pinctrl0 = &pinctrl_0;
+		pinctrl1 = &pinctrl_1;
+		pinctrl2 = &pinctrl_2;
+		pinctrl3 = &pinctrl_3;
+	};
+
+	pinctrl_0: pinctrl@11400000 {
+		compatible = "samsung,exynos5250-pinctrl";
+		reg = <0x11400000 0x1000>;
+		interrupts = <0 46 0>;
+
+		wakup_eint: wakeup-interrupt-controller {
+			compatible = "samsung,exynos4210-wakeup-eint";
+			interrupt-parent = <&gic>;
+			interrupts = <0 32 0>;
+		};
+	};
+
+	pinctrl_1: pinctrl@13400000 {
+		compatible = "samsung,exynos5250-pinctrl";
+		reg = <0x13400000 0x1000>;
+		interrupts = <0 45 0>;
+	};
+
+	pinctrl_2: pinctrl@10d10000 {
+		compatible = "samsung,exynos5250-pinctrl";
+		reg = <0x10d10000 0x1000>;
+		interrupts = <0 50 0>;
+	};
+
+	pinctrl_3: pinctrl@03860000 {
+		compatible = "samsung,exynos5250-pinctrl";
+		reg = <0x03860000 0x1000>;
+		interrupts = <0 47 0>;
+	};
+
 	i2c@12ca0000 {
 		#address-cells = <1>;
 		#size-cells = <0>;