arm64: dts: renesas: r8a77990: add/enable USB3.0 peripheral device node

This patch adds/enables USB3.0 peripheral device node for r8a77990
ebisu board.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts

@@ -362,6 +362,11 @@ &usb2_phy0 {
 	status = "okay";
 };
 
+&usb3_peri0 {
+	companion = <&xhci0>;
+	status = "okay";
+};
+
 &vin4 {
 	status = "okay";
 };

arch/arm64/boot/dts/renesas/r8a77990.dtsi

@@ -898,6 +898,17 @@ xhci0: usb@ee000000 {
 			status = "disabled";
 		};
 
+		usb3_peri0: usb@ee020000 {
+			compatible = "renesas,r8a77990-usb3-peri",
+				     "renesas,rcar-gen3-usb3-peri";
+			reg = <0 0xee020000 0 0x400>;
+			interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 328>;
+			power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;
+			resets = <&cpg 328>;
+			status = "disabled";
+		};
+
 		ohci0: usb@ee080000 {
 			compatible = "generic-ohci";
 			reg = <0 0xee080000 0 0x100>;