[PATCH v2] arm64: dts: imx8mp: Add device tree for Nitrogen8M Plus ENC Carrier Board

Andrew Lunn andrew at lunn.ch
Thu Mar 27 07:25:38 PDT 2025


> +++ b/arch/arm64/boot/dts/freescale/imx8mp-nitrogen-som.dtsi
> @@ -0,0 +1,415 @@
> +&eqos {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_eqos>;
> +	phy-handle = <&ethphy0>;
> +	phy-mode = "rgmii-id";
> +	status = "okay";
> +
> +	mdio {
> +		compatible = "snps,dwmac-mdio";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		ethphy0: ethernet-phy at 4 {

Just conformation, the PHY is on the SOM? Are the magnetics and RJ45
socket on the SOM, or the carrier?

> +			compatible = "ethernet-phy-ieee802.3-c22";
> +			reg = <4>;
> +			eee-broken-1000t;

> +#if 0
> +			interrupts-extended = <&gpio3 2 IRQ_TYPE_LEVEL_LOW>;
> +			reset-gpios = <&gpio3 16 GPIO_ACTIVE_LOW>;
> +#endif

Please don't have disabled properties.

> +			reg-mask = <0x90>;

What does this property do? It is not one i recognise.

     Andrew



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