ARM: dts: add initial Rex Pro board support

Add initial Rex Pro i.mx6q board support. Ethernet, UART, USB, I2C, SPI, HDMI,
Audio, and SDHC cards are working.  Currently no mainline u-boot, so boot with
cat zImage imx6q-rex-pro.dtb > zImage.dtb, then using mkimage create uImage

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>

arch/arm/boot/dts/Makefile

@@ -219,6 +219,7 @@ dtb-$(CONFIG_ARCH_MXC) += \
 	imx6q-gw54xx.dtb \
 	imx6q-nitrogen6x.dtb \
 	imx6q-phytec-pbab01.dtb \
+	imx6q-rex-pro.dtb \
 	imx6q-sabreauto.dtb \
 	imx6q-sabrelite.dtb \
 	imx6q-sabresd.dtb \

arch/arm/boot/dts/imx6q-rex-pro.dts

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2014 FEDEVEL, Inc.
+ *
+ * Author: Robert Nelson <robertcnelson@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.
+ *
+ */
+/dts-v1/;
+#include "imx6q.dtsi"
+#include "imx6qdl-rex.dtsi"
+
+/ {
+	model = "Rex Pro i.MX6 Quad Board";
+	compatible = "rex,imx6q-rex-pro", "fsl,imx6q";
+
+	memory {
+		reg = <0x10000000 0x80000000>;
+	};
+};
+
+&ecspi3 {
+	flash: m25p80@0 {
+		compatible = "sst,sst25vf032b";
+		spi-max-frequency = <20000000>;
+		reg = <0>;
+	};
+};
+
+&sata {
+	status = "okay";
+};