Subject: Re: [PATCH net-next] dsa: slave: support phy devices on external MII bus

From: Andrew Lunn <[email-masked]>
Date: Mon, 16 Oct 2017 14:40:02 +0200

>       /* internal MII */
>       mdio {
>         switch0phy1@1 {
>           reg = <1>;
>         };
>       };
> 
>       /* external MII */
>       mdio1 {
>         switch0phy0: switch0phy0@0 {
>           reg = <0>;
>         };

Hi Martin

You are missing a compatible string here. The binding document says:

- mdio?         : Container of PHYs and devices on the external MDIO
                          bus. The node must contains a compatible string of
                          "marvell,mv88e6xxx-mdio-external"

	  Andrew