arm64: dts: renesas: gray-hawk-single: Describe AVB1 and AVB2

Describe the two Marvell 88Q2110/QFN40 PHYs available on the R-Car V4M
Gray Hawk single-board. The two PHYs are wired up on the board by
default.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250107160127.528933-3-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

1 files changed, 94 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
index f3a744e17d480..55b1877659323 100644
--- a/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
+++ b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
@@ -46,6 +46,8 @@
 		serial0 = &hscif0;
 		serial1 = &hscif2;
 		ethernet0 = &avb0;
+		ethernet1 = &avb1;
+		ethernet2 = &avb2;
 	};
 
 	can_transceiver0: can-phy0 {
@@ -219,6 +221,48 @@
 	};
 };
 
+&avb1 {
+	pinctrl-0 = <&avb1_pins>;
+	pinctrl-names = "default";
+	phy-handle = <&avb1_phy>;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		reset-gpios = <&gpio6 1 GPIO_ACTIVE_LOW>;
+		reset-post-delay-us = <4000>;
+
+		avb1_phy: ethernet-phy@0 {
+			compatible = "ethernet-phy-ieee802.3-c45";
+			reg = <0>;
+			interrupts-extended = <&gpio6 3 IRQ_TYPE_LEVEL_LOW>;
+		};
+	};
+};
+
+&avb2 {
+	pinctrl-0 = <&avb2_pins>;
+	pinctrl-names = "default";
+	phy-handle = <&avb2_phy>;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		reset-gpios = <&gpio5 5 GPIO_ACTIVE_LOW>;
+		reset-post-delay-us = <4000>;
+
+		avb2_phy: ethernet-phy@0 {
+			compatible = "ethernet-phy-ieee802.3-c45";
+			reg = <0>;
+			interrupts-extended = <&gpio5 4 IRQ_TYPE_LEVEL_LOW>;
+		};
+	};
+};
+
 &can_clk {
 	clock-frequency = <40000000>;
 };
@@ -563,6 +607,56 @@
 		};
 	};
 
+	avb1_pins: avb1 {
+		mux {
+			groups = "avb1_link", "avb1_mdio", "avb1_rgmii",
+				 "avb1_txcrefclk";
+			function = "avb1";
+		};
+
+		link {
+			groups = "avb1_link";
+			bias-disable;
+		};
+
+		mdio {
+			groups = "avb1_mdio";
+			drive-strength = <24>;
+			bias-disable;
+		};
+
+		rgmii {
+			groups = "avb1_rgmii";
+			drive-strength = <24>;
+			bias-disable;
+		};
+	};
+
+	avb2_pins: avb2 {
+		mux {
+			groups = "avb2_link", "avb2_mdio", "avb2_rgmii",
+				 "avb2_txcrefclk";
+			function = "avb2";
+		};
+
+		link {
+			groups = "avb2_link";
+			bias-disable;
+		};
+
+		mdio {
+			groups = "avb2_mdio";
+			drive-strength = <24>;
+			bias-disable;
+		};
+
+		rgmii {
+			groups = "avb2_rgmii";
+			drive-strength = <24>;
+			bias-disable;
+		};
+	};
+
 	can_clk_pins: can-clk {
 		groups = "can_clk";
 		function = "can_clk";