Re: [PATCH v5 2/3] arm64: dts: rockchip: refactor items from Orange Pi 5/b to prep for Pro

Andrew Lunn
2026-04-01T11:53:19Z

> +&gmac1 {
> + clock_in_out = "output";
> + phy-handle = <&rgmii_phy1>;
> + phy-mode = "rgmii-rxid";
> + pinctrl-0 = <&gmac1_miim
> + &gmac1_tx_bus2
> + &gmac1_rx_bus2
> + &gmac1_rgmii_clk
> + &gmac1_rgmii_bus>;
> + pinctrl-names = "default";
> + tx_delay = <0x42>;

phy-mode = "rgmii-rxid" means the PCB provides the 2ns delay for
TX. This is unlikely to be correct. Please try "rgmii-id" and delete
the tx_delay.

https://elixir.bootlin.com/linux/v6.15/source/Documentation/devicetree/bindings/net/ethernet-controller.yaml#L287

Andrew

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