linux-kernel - Re: [PATCH v1] ARM: dts: imx6q-marsboard: properly define rgmii PHY

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Message-ID: <20200312143621.GD1249@dragon>
Date:   Thu, 12 Mar 2020 22:36:22 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Oleksij Rempel <o.rempel@...gutronix.de>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        "David S. Miller" <davem@...emloft.net>,
        devicetree@...r.kernel.org, Fabio Estevam <festevam@...il.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Mark Brown <broonie@...nel.org>, netdev@...r.kernel.org,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Russell King <linux@...linux.org.uk>
Subject: Re: [PATCH v1] ARM: dts: imx6q-marsboard: properly define rgmii PHY

On Fri, Mar 06, 2020 at 09:03:53AM +0100, Oleksij Rempel wrote:
> The Atheros AR8035 PHY can be autodetected but can't use interrupt
> support provided on this board. Define MDIO bus and the PHY node to make
> it work properly.
> 
> Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
> ---
>  arch/arm/boot/dts/imx6q-marsboard.dts | 17 ++++++++++++++++-
>  1 file changed, 16 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/imx6q-marsboard.dts b/arch/arm/boot/dts/imx6q-marsboard.dts
> index 84b30bd6908f..019488aaa30b 100644
> --- a/arch/arm/boot/dts/imx6q-marsboard.dts
> +++ b/arch/arm/boot/dts/imx6q-marsboard.dts
> @@ -111,8 +111,23 @@ &fec {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&pinctrl_enet>;
>  	phy-mode = "rgmii-id";
> -	phy-reset-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
>  	status = "okay";
> +
> +	mdio {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		/* Atheros AR8035 PHY */
> +		rgmii_phy: ethernet-phy@4 {
> +			reg = <4>;
> +
> +			interrupts-extended = <&gpio1 28 IRQ_TYPE_LEVEL_LOW>;
> +

Drop these newlines.

Shawn

> +			reset-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
> +			reset-assert-us = <10000>;
> +			reset-deassert-us = <1000>;
> +		};
> +	};
>  };
>  
>  &hdmi {
> -- 
> 2.25.1
>