ARM: dts: r8a7745: Add USB PHY DT support

Define the r8a7745 generic part of the USB PHY device node.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Chris Paterson <chris.paterson2@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7745.dtsi

@@ -891,6 +891,28 @@ pci1: pci@ee0d0000 {
 					 0x0800 0 0 1 &gic GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH
 					 0x1000 0 0 2 &gic GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>;
 		};
+
+		usbphy: usb-phy@e6590100 {
+			compatible = "renesas,usb-phy-r8a7745",
+				     "renesas,rcar-gen2-usb-phy";
+			reg = <0 0xe6590100 0 0x100>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&cpg CPG_MOD 704>;
+			clock-names = "usbhs";
+			power-domains = <&sysc R8A7745_PD_ALWAYS_ON>;
+			resets = <&cpg 704>;
+			status = "disabled";
+
+			usb0: usb-channel@0 {
+				reg = <0>;
+				#phy-cells = <1>;
+			};
+			usb2: usb-channel@2 {
+				reg = <2>;
+				#phy-cells = <1>;
+			};
+		};
 	};
 
 	/* External root clock */