ARM: dts: omap3: Add support for IGEPv2 board

ISEE IGEPv2 is an TI OMAP3 SoC based embedded board.

This patch adds an initial device tree support to boot
an IGEPv2 from the MMC/SD.

Currently is working everything that is supported by DT
on OMAP3 SoCs (MMC/SD, GPIO LEDs, EEPROM, TWL4030 audio).
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Enric Balletbo i Serra <eballetbo@gmail.com>
[benoit.cousson@linaro.org: Update the Makefile for 3.8-rc2]
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>

arch/arm/boot/dts/Makefile

@@ -119,6 +119,7 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
 	omap3-beagle-xm.dtb \
 	omap3-evm.dtb \
 	omap3-tobi.dtb \
+	omap3-igep0020.dtb \
 	omap4-panda.dtb \
 	omap4-panda-a4.dtb \
 	omap4-panda-es.dtb \

arch/arm/boot/dts/omap3-igep0020.dts

+/*
+ * Device Tree Source for IGEPv2 board
+ *
+ * Copyright (C) 2012 Javier Martinez Canillas <javier@collabora.co.uk>
+ * Copyright (C) 2012 Enric Balletbo i Serra <eballetbo@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/include/ "omap3-igep.dtsi"
+
+/ {
+	model = "IGEPv2";
+	compatible = "isee,omap3-igep0020", "ti,omap3";
+
+	leds {
+		compatible = "gpio-leds";
+		boot {
+			 label = "omap3:green:boot";
+			 gpios = <&gpio1 26 0>;
+			 default-state = "on";
+		};
+
+		user0 {
+			 label = "omap3:red:user0";
+			 gpios = <&gpio1 27 0>;
+			 default-state = "off";
+		};
+
+		user1 {
+			 label = "omap3:red:user1";
+			 gpios = <&gpio1 28 0>;
+			 default-state = "off";
+		};
+
+		user2 {
+			label = "omap3:green:user1";
+			gpios = <&twl_gpio 19 1>;
+		};
+	};
+};
+
+&i2c3 {
+	clock-frequency = <100000>;
+
+	/*
+	 * Display monitor features are burnt in the EEPROM
+	 * as EDID data.
+	 */
+	eeprom@50 {
+		compatible = "ti,eeprom";
+		reg = <0x50>;
+	};
+};