linux-loongson/arch/arm64/boot/dts/renesas/white-hawk-single.dtsi
Geert Uytterhoeven 8ffec7d62c arm64: dts: renesas: white-hawk-single: Improve Ethernet TSN description
- Add the missing "ethernet3" alias for the Ethernet TSN port, so
    U-Boot will fill its local-mac-address property based on the
    "eth3addr" environment variable (if set), avoiding a random MAC
    address being assigned by the OS,
  - Rename the numerical Ethernet PHY label to "tsn0_phy", to avoid
    future conflicts, and for consistency with the "avbN_phy" labels.

Fixes: 3d8e475bd7 ("arm64: dts: renesas: white-hawk-single: Wire-up Ethernet TSN")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/367f10a18aa196ff1c96734dd9bd5634b312c421.1746624368.git.geert+renesas@glider.be
2025-05-08 20:23:33 +02:00

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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/*
* Device Tree Source for the White Hawk Single board
*
* Copyright (C) 2023-2024 Glider bv
*/
#include "white-hawk-cpu-common.dtsi"
#include "white-hawk-common.dtsi"
/ {
model = "Renesas White Hawk Single board";
compatible = "renesas,white-hawk-single";
aliases {
ethernet3 = &tsn0;
};
};
&hscif0 {
uart-has-rtscts;
};
&hscif0_pins {
groups = "hscif0_data", "hscif0_ctrl";
function = "hscif0";
};
&pfc {
tsn0_pins: tsn0 {
mux {
groups = "tsn0_link", "tsn0_mdio", "tsn0_rgmii",
"tsn0_txcrefclk";
function = "tsn0";
};
link {
groups = "tsn0_link";
bias-disable;
};
mdio {
groups = "tsn0_mdio";
drive-strength = <24>;
bias-disable;
};
rgmii {
groups = "tsn0_rgmii";
drive-strength = <24>;
bias-disable;
};
};
};
&tsn0 {
pinctrl-0 = <&tsn0_pins>;
pinctrl-names = "default";
phy-mode = "rgmii";
phy-handle = <&tsn0_phy>;
status = "okay";
mdio {
#address-cells = <1>;
#size-cells = <0>;
reset-gpios = <&gpio1 23 GPIO_ACTIVE_LOW>;
reset-post-delay-us = <4000>;
tsn0_phy: ethernet-phy@0 {
compatible = "ethernet-phy-id002b.0980",
"ethernet-phy-ieee802.3-c22";
reg = <0>;
interrupts-extended = <&gpio4 3 IRQ_TYPE_LEVEL_LOW>;
};
};
};