ARM: dts: imx53: Add USB support for M53EVK

Add USB support for M53EVK. The configuration is such that USB Host1
port is used as Host and the USB OTG port is used as Peripheral thus
far. Once OTG is properly fixed, the OTG will be further adjusted.
Signed-off-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx53-m53evk.dts

@@ -96,6 +96,15 @@
 			regulator-always-on;
 		};
 
+		reg_usbh1_vbus: regulator@3 {
+			compatible = "regulator-fixed";
+			reg = <3>;
+			regulator-name = "vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio1 2 0>;
+			enable-active-low;
+		};
 	};
 
 	sound {
@@ -222,6 +231,8 @@
 				MX53_PAD_GPIO_0__CCM_SSI_EXT1_CLK	0x80000000
 				MX53_PAD_EIM_EB3__GPIO2_31		0x80000000
 				MX53_PAD_PATA_DA_0__GPIO7_6		0x80000000
+				MX53_PAD_GPIO_2__GPIO1_2		0x80000000
+				MX53_PAD_GPIO_3__USBOH3_USBH1_OC	0x80000000
 			>;
 		};
 
@@ -426,3 +437,14 @@
 	pinctrl-0 = <&pinctrl_uart3>;
 	status = "okay";
 };
+
+&usbh1 {
+	vbus-supply = <&reg_usbh1_vbus>;
+	phy_type = "utmi";
+	status = "okay";
+};
+
+&usbotg {
+	dr_mode = "peripheral";
+	status = "okay";
+};