arm64: dts: renesas: white-hawk: ethernet: Describe AVB1 and AVB2

Describe the two Marvell 88Q2110/QFN40 PHYs available on the R-Car V4H
White Hawk RAVB/Ethernet(1000Base-T1) sub-board. The two PHYs are wired
up on the board by default, there is no need to move any resistors which
are needed to access other PHYs available on this sub-board.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240413141806.300989-3-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

1 files changed, 103 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/renesas/white-hawk-ethernet.dtsi b/arch/arm64/boot/dts/renesas/white-hawk-ethernet.dtsi
index a218fda337cf..595ec4ff4cdd 100644
--- a/arch/arm64/boot/dts/renesas/white-hawk-ethernet.dtsi
+++ b/arch/arm64/boot/dts/renesas/white-hawk-ethernet.dtsi
@@ -6,6 +6,57 @@
  * Copyright (C) 2022 Glider bv
  */
 
+/ {
+	aliases {
+		ethernet1 = &avb1;
+		ethernet2 = &avb2;
+	};
+};
+
+&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>;
+			interrupt-parent = <&gpio6>;
+			interrupts = <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>;
+			interrupt-parent = <&gpio5>;
+			interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
+		};
+	};
+};
+
 &i2c0 {
 	eeprom@53 {
 		compatible = "rohm,br24g01", "atmel,24c01";
@@ -14,3 +65,55 @@
 		pagesize = <8>;
 	};
 };
+
+&pfc {
+	avb1_pins: avb1 {
+		mux {
+			groups = "avb1_link", "avb1_mdio", "avb1_rgmii",
+				 "avb1_txcrefclk";
+			function = "avb1";
+		};
+
+		mdio {
+			groups = "avb1_mdio";
+			drive-strength = <24>;
+			bias-disable;
+		};
+
+		rgmii {
+			groups = "avb1_rgmii";
+			drive-strength = <24>;
+			bias-disable;
+		};
+
+		link {
+			groups = "avb1_link";
+			bias-disable;
+		};
+	};
+
+	avb2_pins: avb2 {
+		mux {
+			groups = "avb2_link", "avb2_mdio", "avb2_rgmii",
+				 "avb2_txcrefclk";
+			function = "avb2";
+		};
+
+		mdio {
+			groups = "avb2_mdio";
+			drive-strength = <24>;
+			bias-disable;
+		};
+
+		rgmii {
+			groups = "avb2_rgmii";
+			drive-strength = <24>;
+			bias-disable;
+		};
+
+		link {
+			groups = "avb2_link";
+			bias-disable;
+		};
+	};
+};