On Sun, Jul 06, 2025 at 11:06:34AM +0200, Lukas Schmid wrote:

On Sonntag, 6. Juli 2025 09:38:00 CEST Andrew Lunn wrote:

quoted

quoted

+&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)

O.K. great. If you need to respin, please extend either the commit
message including this, or add a comment in the .dtsi file for the
SOM.

	Andrew