Re: [PATCH v1 5/7] ARM: dts: sunxi: add support for NetCube Systems Nagami SoM

Lukas Schmid
2025-07-06T09:09:14Z

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On Sonntag, 6. Juli 2025 09:38:00 CEST Andrew Lunn wrote:
> > +&mdio {
> > + lan8720a: ethernet-phy@1 {
> > + compatible = "ethernet-phy-ieee802.3-c22";
> > + reg = <1>;
> > + };
> > +};
>
> Just for clarification: The PHY is on the SOM? I've seen systems where
> the PHY is on the SOM, and the magnetics and RJ45 on the carrier
> board. I've also seen systems where the PHY, magnetics and RJ45 are on
> the carrier.

Yes that' the case here. The PHY is located on the SoM and the MDI signals
before any magnetics are on the SoM's Card-Edge. The magnetics are required
on the Carrier board (e.g. a MagJack or dedicated Transformer)
>
> Andrew

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