arm64: dts: h3ulcb: enable EthernetAVB

This supports Ethernet AVB on H3ULCB board
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts

@@ -19,6 +19,7 @@ / {
 
 	aliases {
 		serial0 = &scif2;
+		ethernet0 = &avb;
 	};
 
 	chosen {
@@ -49,6 +50,11 @@ scif_clk_pins: scif_clk {
 		groups = "scif_clk_a";
 		function = "scif_clk";
 	};
+
+	avb_pins: avb {
+		groups = "avb_mdc";
+		function = "avb";
+	};
 };
 
 &scif2 {
@@ -62,3 +68,29 @@ &scif_clk {
 	clock-frequency = <14745600>;
 	status = "okay";
 };
+
+&avb {
+	pinctrl-0 = <&avb_pins>;
+	pinctrl-names = "default";
+	renesas,no-ether-link;
+	phy-handle = <&phy0>;
+	status = "okay";
+
+	phy0: ethernet-phy@0 {
+		rxc-skew-ps = <900>;
+		rxdv-skew-ps = <0>;
+		rxd0-skew-ps = <0>;
+		rxd1-skew-ps = <0>;
+		rxd2-skew-ps = <0>;
+		rxd3-skew-ps = <0>;
+		txc-skew-ps = <900>;
+		txen-skew-ps = <0>;
+		txd0-skew-ps = <0>;
+		txd1-skew-ps = <0>;
+		txd2-skew-ps = <0>;
+		txd3-skew-ps = <0>;
+		reg = <0>;
+		interrupt-parent = <&gpio2>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+	};
+};