> + port@6 { > + reg = <6>; > + label = "cpu"; > + ethernet = <&gmac0>; > + phy-mode = "2500base-x"; > + > + fixed-link { > + speed = <2500>; > + full-duplex; > + pause; > + }; This fixed-link should not be needed. The DSA driver is supposed to configure the CPU port to its fastest speed by default. 2500 is the fastest speed a 2500Base-X link can do... Andrew