arm64: dts: Add hi6220 usb node

Add USB nodes for Hi6220
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>

arch/arm64/boot/dts/hisilicon/hi6220.dtsi

@@ -615,5 +615,37 @@ i2c2: i2c@f7102000 {
 			pinctrl-0 = <&i2c2_pmx_func &i2c2_cfg_func>;
 			status = "disabled";
 		};
+
+		fixed_5v_hub: regulator@0 {
+			compatible = "regulator-fixed";
+			regulator-name = "fixed_5v_hub";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-boot-on;
+			gpio = <&gpio0 7 0>;
+			regulator-always-on;
+		};
+
+		usb_phy: usbphy {
+			compatible = "hisilicon,hi6220-usb-phy";
+			#phy-cells = <0>;
+			phy-supply = <&fixed_5v_hub>;
+			hisilicon,peripheral-syscon = <&sys_ctrl>;
+		};
+
+		usb: usb@f72c0000 {
+			compatible = "hisilicon,hi6220-usb";
+			reg = <0x0 0xf72c0000 0x0 0x40000>;
+			phys = <&usb_phy>;
+			phy-names = "usb2-phy";
+			clocks = <&sys_ctrl HI6220_USBOTG_HCLK>;
+			clock-names = "otg";
+			dr_mode = "otg";
+			g-use-dma;
+			g-rx-fifo-size = <512>;
+			g-np-tx-fifo-size = <128>;
+			g-tx-fifo-size = <128 128 128 128 128 128>;
+			interrupts = <0 77 0x4>;
+		};
 	};
 };