ARM: Kirkwood: new board USI Topkick

This is a new kirkwood box made by Universal Scientific Industrial, Inc.
The product description is here:

http://www.usish.com/english/products_topkick1281p2.php

It is very similar to the dreamplug and other plug devices, with the
exception that it has room for a 2.5" SATA HDD internally.

Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
diff --git a/arch/arm/boot/dts/kirkwood-topkick.dts b/arch/arm/boot/dts/kirkwood-topkick.dts
new file mode 100644
index 0000000..c0de5a7
--- /dev/null
+++ b/arch/arm/boot/dts/kirkwood-topkick.dts
@@ -0,0 +1,85 @@
+/dts-v1/;
+
+/include/ "kirkwood.dtsi"
+
+/ {
+	model = "Univeral Scientific Industrial Co. Topkick-1281P2";
+	compatible = "usi,topkick-1281P2", "usi,topkick", "marvell,kirkwood-88f6282", "marvell,kirkwood";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x10000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8 earlyprintk";
+	};
+
+	ocp@f1000000 {
+		serial@12000 {
+			clock-frequency = <200000000>;
+			status = "ok";
+		};
+
+		nand@3000000 {
+			status = "okay";
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x0000000 0x180000>;
+			};
+
+			partition@180000 {
+				label = "u-boot env";
+				reg = <0x0180000 0x20000>;
+			};
+
+			partition@200000 {
+				label = "uImage";
+				reg = <0x0200000 0x600000>;
+			};
+
+			partition@800000 {
+				label = "uInitrd";
+				reg = <0x0800000 0x1000000>;
+			};
+
+			partition@1800000 {
+				label = "rootfs";
+				reg = <0x1800000 0xe800000>;
+			};
+		};
+
+		sata@80000 {
+			status = "okay";
+			nr-ports = <1>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		disk {
+			label = "topkick:yellow:disk";
+			gpios = <&gpio0 21 1>;
+			linux,default-trigger = "ide-disk";
+		};
+		system2 {
+			label = "topkick:red:system";
+			gpios = <&gpio1 5 1>;
+		};
+		system {
+			label = "topkick:blue:system";
+			gpios = <&gpio1 6 1>;
+			default-state = "on";
+		};
+		wifi {
+			label = "topkick:green:wifi";
+			gpios = <&gpio1 7 1>;
+		};
+		wifi2 {
+			label = "topkick:yellow:wifi";
+			gpios = <&gpio1 16 1>;
+		};
+	};
+};