XUANTIE: riscv: dts: thead: Add TH1520 USB nodes

From: revyos@2bd7874

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Signed-off-by: Han Gao <gaohan@iscas.ac.cn>

Author: xhackerustc

arch/riscv/boot/dts/thead/th1520.dtsi

@@ -660,6 +660,29 @@
 			#pwm-cells = <3>;
 		};
 
+		misc_sysreg: misc_sysreg@ffec02c000 {
+			compatible = "thead,th1520-misc-sysreg", "syscon";
+			reg = <0xff 0xec02c000 0x0 0x1000>;
+		};
+
+		usb: usb@ffec03f000 {
+			compatible = "thead,th1520-usb";
+			reg = <0xff 0xec03f000 0x0 0x1000>;
+			thead,misc-sysreg = <&misc_sysreg>;
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges;
+
+			usb_dwc3: usb@ffe7040000 {
+				compatible = "snps,dwc3";
+				reg = <0xff 0xe7040000 0x0 0x10000>;
+				interrupts = <68 IRQ_TYPE_LEVEL_HIGH>;
+				dr_mode = "host";
+				snps,usb3_lpm_capable;
+				status = "disabled";
+			};
+		};
+
 		dmac0: dma-controller@ffefc00000 {
 			compatible = "snps,axi-dma-1.01a";
 			reg = <0xff 0xefc00000 0x0 0x1000>;