arm64: dts: r8a7796: add USB2.0 Host (EHCI/OHCI) device nodes

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/r8a7796.dtsi

@@ -1232,11 +1232,28 @@ xhci0: usb@ee000000 {
 		};
 
 		ohci0: usb@ee080000 {
-			/* placeholder */
+			compatible = "generic-ohci";
+			reg = <0 0xee080000 0 0x100>;
+			interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 703>;
+			phys = <&usb2_phy0>;
+			phy-names = "usb";
+			power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+			resets = <&cpg 703>;
+			status = "disabled";
 		};
 
 		ehci0: usb@ee080100 {
-			/* placeholder */
+			compatible = "generic-ehci";
+			reg = <0 0xee080100 0 0x100>;
+			interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 703>;
+			phys = <&usb2_phy0>;
+			phy-names = "usb";
+			companion= <&ohci0>;
+			power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+			resets = <&cpg 703>;
+			status = "disabled";
 		};
 
 		usb2_phy0: usb-phy@ee080200 {
@@ -1252,11 +1269,28 @@ usb2_phy0: usb-phy@ee080200 {
 		};
 
 		ohci1: usb@ee0a0000 {
-			/* placeholder */
+			compatible = "generic-ohci";
+			reg = <0 0xee0a0000 0 0x100>;
+			interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 702>;
+			phys = <&usb2_phy1>;
+			phy-names = "usb";
+			power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+			resets = <&cpg 702>;
+			status = "disabled";
 		};
 
 		ehci1: usb@ee0a0100 {
-			/* placeholder */
+			compatible = "generic-ehci";
+			reg = <0 0xee0a0100 0 0x100>;
+			interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 702>;
+			phys = <&usb2_phy1>;
+			phy-names = "usb";
+			companion= <&ohci1>;
+			power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+			resets = <&cpg 702>;
+			status = "disabled";
 		};
 
 		usb2_phy1: usb-phy@ee0a0200 {