Add initial support for cm-fx6 module.

cm-fx6 is a module based on mx6q SoC with the following features:
- Up to 4GB of DDR3
- 1 LCD/DVI output port
- 1 HDMI output port
- 2 LVDS LCD ports
- Gigabit Ethernet
- Analog Audio
- CAN
- SATA
- NAND
- PCIE

This patch allows to boot up the module, configures the serial console,
the Ethernet adapter and the hearbeat led.

Signed-off-by: Valentin Raevsky <valentin@xxxxxxxxxxxxxx>
Acked-by: Igor Grinberg <grinberg@xxxxxxxxxxxxxx>
---
 arch/arm/boot/dts/cm-fx6.dts |   51 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 arch/arm/boot/dts/cm-fx6.dts

diff --git a/arch/arm/boot/dts/cm-fx6.dts b/arch/arm/boot/dts/cm-fx6.dts
new file mode 100644
index 0000000..1080215
--- /dev/null
+++ b/arch/arm/boot/dts/cm-fx6.dts
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2013 CompuLab Ltd.
+ *
+ * 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 "imx6q.dtsi"
+
+/ {
+	model = "CompuLab CM-FX6";
+	compatible = "compulab,cm-fx6", "fsl,imx6q";
+
+	memory {
+		reg = <0x10000000 0x80000000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		debug-led {
+			label = "Heartbeat";
+			gpios = <&gpio2 31 0>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+};
+
+&gpmi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpmi_nand_1>;
+	status = "okay";
+};
+
+&fec {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_enet_1>;
+	phy-mode = "rgmii";
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4_1>;
+	status = "okay";
+};
-- 
1.7.9.5