ARM: dts: sun5i-a13-olinuxino-micro: enable USB DRC

Enable the OTG controller on the Olinuxino A13-micro.
Signed-off-by: Jean-Michel Friedt <jmfriedt@femto-st.fr>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts

@@ -109,6 +109,10 @@ &ohci0 {
 	status = "okay";
 };
 
+&otg_sram {
+	status = "okay";
+};
+
 &pio {
 	mmc0_cd_pin_olinuxinom: mmc0_cd_pin@0 {
 		allwinner,pins = "PG0";
@@ -124,6 +128,27 @@ led_pins_olinuxinom: led_pins@0 {
 		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
 	};
 
+	usb0_id_detect_pin: usb0_id_detect_pin@0 {
+		allwinner,pins = "PG2";
+		allwinner,function = "gpio_in";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+	};
+
+	usb0_vbus_detect_pin: usb0_vbus_detect_pin@0 {
+		allwinner,pins = "PG1";
+		allwinner,function = "gpio_in";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_PULL_DOWN>;
+	};
+
+	usb0_vbus_pin_olinuxinom: usb0_vbus_pin@0 {
+		allwinner,pins = "PG12";
+		allwinner,function = "gpio_out";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+	};
+
 	usb1_vbus_pin_olinuxinom: usb1_vbus_pin@0 {
 		allwinner,pins = "PG11";
 		allwinner,function = "gpio_out";
@@ -132,6 +157,12 @@ usb1_vbus_pin_olinuxinom: usb1_vbus_pin@0 {
 	};
 };
 
+&reg_usb0_vbus {
+	pinctrl-0 = <&usb0_vbus_pin_olinuxinom>;
+	gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>;
+	status = "okay";
+};
+
 &reg_usb1_vbus {
 	pinctrl-0 = <&usb1_vbus_pin_olinuxinom>;
 	gpio = <&pio 6 11 GPIO_ACTIVE_HIGH>;
@@ -144,7 +175,17 @@ &uart1 {
 	status = "okay";
 };
 
+&usb_otg {
+	dr_mode = "otg";
+	status = "okay";
+};
+
 &usbphy {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
+	usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
+	usb0_vbus_det-gpio = <&pio 6 1 GPIO_ACTIVE_HIGH>; /* PG1 */
+	usb0_vbus-supply = <&reg_usb0_vbus>;
 	usb1_vbus-supply = <&reg_usb1_vbus>;
 	status = "okay";
 };