On Wed, 2019-12-11 at 00:51 +0800, Andrew Lunn wrote:

quoted

+				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...

I'll add the cpu port logic to use the fastest speed by default.
It also needs to modify the mt753x_phylink_mac_config() logic.

Landen

    Andrew