linux-kernel - Re: [PATCH 2/2] arm64: dts: marvell: eDPU: add support for version with external switch

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Date:   Thu, 14 Sep 2023 14:52:56 +0200
From:   Robert Marko <robert.marko@...tura.hr>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     gregory.clement@...tlin.com, sebastian.hesselbarth@...il.com,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        luka.perkov@...tura.hr
Subject: Re: [PATCH 2/2] arm64: dts: marvell: eDPU: add support for version
 with external switch

On Thu, Sep 14, 2023 at 2:51 PM Andrew Lunn <andrew@...n.ch> wrote:
>
> > +&mdio {
> > +     status = "disabled";
> > +     pinctrl-names = "default";
> > +     pinctrl-0 = <&smi_pins>;
> > +
> > +     /* Actual device is MV88E6361 */
> > +     switch: switch@0 {
> > +             compatible = "marvell,mv88e6190";
> > +             #address-cells = <1>;
> > +             #size-cells = <0>;
> > +             reg = <0>;
> > +             status = "disabled";
> > +
> > +             ports {
> > +                     #address-cells = <1>;
> > +                     #size-cells = <0>;
> > +
> > +                     port@0 {
> > +                             reg = <0>;
> > +                             label = "cpu";
> > +                             phy-mode = "2500base-x";
> > +                             managed = "in-band-status";
> > +                             ethernet = <&eth0>;
> > +                     };
> > +
>
> So ports 1 through 7 are completely unused?

Yes, only 3 ports are used.
Regards,
Robert
>
> > +                     port@9 {
> > +                             reg = <9>;
> > +                             label = "downlink";
> > +                             phy-mode = "2500base-x";
> > +                             managed = "in-band-status";
> > +                     };
>
>         Andrew



-- 
Robert Marko
Staff Embedded Linux Engineer
Sartura Ltd.
Lendavska ulica 16a
10000 Zagreb, Croatia
Email: robert.marko@...tura.hr
Web: www.sartura.hr