Commit 96f7071d authored by Geert Uytterhoeven's avatar Geert Uytterhoeven
Browse files

arm64: dts: renesas: white-hawk-cpu: Add Ethernet support 



Describe the wiring of the first Ethernet AVB instance to the Micrel
KSZ9031RNXVB PHY.

Based on a larger patch in the BSP by Takeshi Kihara.

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/50a31bc8267ab4c90bff27ef3aca1169f8ebc7ae.1662715538.git.geert+renesas@glider.be
parent 7bb9e424

arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi

+37 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ / { 
	compatible = "renesas,white-hawk-cpu", "renesas,r8a779g0";



	aliases {

		ethernet0 = &avb0;

		serial0 = &hscif0;

	};
@@ -96,6 +97,24 @@ memory@600000000 { 
	};

};



&avb0 {

	pinctrl-0 = <&avb0_pins>;

	pinctrl-names = "default";

	phy-handle = <&phy0>;

	tx-internal-delay-ps = <2000>;

	status = "okay";



	phy0: ethernet-phy@0 {

		compatible = "ethernet-phy-id0022.1622",

			     "ethernet-phy-ieee802.3-c22";

		rxc-skew-ps = <1500>;

		reg = <0>;

		interrupt-parent = <&gpio7>;

		interrupts = <5 IRQ_TYPE_LEVEL_LOW>;

		reset-gpios = <&gpio7 10 GPIO_ACTIVE_LOW>;

	};

};



&extal_clk {

	clock-frequency = <16666666>;

};
@@ -127,6 +146,24 @@ &pfc { 
	pinctrl-0 = <&scif_clk_pins>;

	pinctrl-names = "default";



	avb0_pins: avb0 {

		mux {

			groups = "avb0_link", "avb0_mdio", "avb0_rgmii",

				 "avb0_txcrefclk";

			function = "avb0";

		};



		pins_mdio {

			groups = "avb0_mdio";

			drive-strength = <21>;

		};



		pins_mii {

			groups = "avb0_rgmii";

			drive-strength = <21>;

		};



	};

	hscif0_pins: hscif0 {

		groups = "hscif0_data";

		function = "hscif0";