netdev - Re: [PATCH 4/4] arm64: dts: imx8ulp-evk: enable fec

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Date:   Sat, 20 Nov 2021 16:26:09 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     "Peng Fan (OSS)" <peng.fan@....nxp.com>
Cc:     robh+dt@...nel.org, aisheng.dong@....com, qiangqing.zhang@....com,
        davem@...emloft.net, kuba@...nel.org, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux-imx@....com, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, Peng Fan <peng.fan@....com>
Subject: Re: [PATCH 4/4] arm64: dts: imx8ulp-evk: enable fec

> +&fec {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_enet>;
> +	phy-mode = "rmii";

Is this really a Fast Ethernet? Not 1G?

> +	phy-handle = <&ethphy>;
> +	status = "okay";
> +
> +	mdio {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		ethphy: ethernet-phy {
> +			reg = <1>;

I'm surprised this does not give warnings from the DTS tools. There is
a reg value, so it should be ethernet-phy@1

  Andrew