ARM: sun7i: Add Cubieboard2 Device Tree

The Cubieboard2 is the successor of the first Cubieboard, and shares the
same hardware, except that the Allwinner A10 found initially has been
replaced by an Allwinner A20.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/Makefile

@@ -213,6 +213,7 @@ dtb-$(CONFIG_ARCH_SUNXI) += \
 	sun5i-a10s-olinuxino-micro.dtb \
 	sun5i-a13-olinuxino.dtb \
 	sun6i-a31-colombus.dtb \
+	sun7i-a20-cubieboard2.dtb \
 	sun7i-a20-olinuxino-micro.dtb
 dtb-$(CONFIG_ARCH_TEGRA) += tegra20-harmony.dtb \
 	tegra20-iris-512.dtb \

arch/arm/boot/dts/sun7i-a20-cubieboard2.dts

+/*
+ * Copyright 2013 Maxime Ripard
+ *
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+/include/ "sun7i-a20.dtsi"
+
+/ {
+	model = "Cubietech Cubieboard2";
+	compatible = "cubietech,cubieboard2", "allwinner,sun7i-a20";
+
+	soc@01c00000 {
+		pinctrl@01c20800 {
+			led_pins_cubieboard2: led_pins@0 {
+				allwinner,pins = "PH20", "PH21";
+				allwinner,function = "gpio_out";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+		};
+
+		uart0: serial@01c28000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart0_pins_a>;
+			status = "okay";
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&led_pins_cubieboard2>;
+
+		blue {
+			label = "cubieboard2:blue:usr";
+			gpios = <&pio 7 21 0>;
+		};
+
+		green {
+			label = "cubieboard2:green:usr";
+			gpios = <&pio 7 20 0>;
+		};
+	};
+};