netdev - Re: [PATCH RFC V2 6/6] ARM: dts: bcm2711-rpi-4: Enable GENET support

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Date:   Sat, 2 Nov 2019 13:02:38 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Stefan Wahren <wahrenst@....net>,
        Matthias Brugger <matthias.bgg@...nel.org>,
        Matthias Brugger <mbrugger@...e.com>,
        "David S . Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>
Cc:     Eric Anholt <eric@...olt.net>,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Doug Berger <opendmb@...il.com>, netdev@...r.kernel.org,
        bcm-kernel-feedback-list@...adcom.com,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH RFC V2 6/6] ARM: dts: bcm2711-rpi-4: Enable GENET support



On 11/2/2019 6:41 AM, Stefan Wahren wrote:
> This enables the Gigabit Ethernet support on the Raspberry Pi 4.
> The defined PHY mode is equivalent to the default register settings
> in the downstream tree.
> 
> Signed-off-by: Stefan Wahren <wahrenst@....net>
> Signed-off-by: Matthias Brugger <mbrugger@...e.com>
> ---
>  arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 23 +++++++++++++++++++++++
>  arch/arm/boot/dts/bcm2711.dtsi        | 19 +++++++++++++++++++
>  2 files changed, 42 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
> index cccc1cc..904efe1 100644
> --- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
> +++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
> @@ -19,6 +19,10 @@
>  		reg = <0 0 0>;
>  	};
> 
> +	aliases {
> +		ethernet0 = &genet;
> +	};
> +
>  	leds {
>  		act {
>  			gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
> @@ -97,6 +101,25 @@
>  	status = "okay";
>  };
> 
> +&genet {
> +	phy-handle = <&phy1>;
> +	phy-mode = "rgmii-rxid";
> +	status = "okay";
> +
> +	mdio@e14 {
> +		compatible = "brcm,genet-mdio-v5";
> +		reg = <0xe14 0x8>;
> +		reg-names = "mdio";
> +		#address-cells = <0x0>;
> +		#size-cells = <0x1>;

The MDIO controller is always present, therefore its node definition
would be better placed in bcm2711.dtsi. Other than that:

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian