Since commit 
eca70102cfb1 ("net: dsa: felix: add support for changing
DSA master") included in kernel v6.1, the driver supports 2 CPU ports,
and they can be put in a LAG, for example (see
Documentation/networking/dsa/configuration.rst for more details).
Defining the second CPU port in the device tree should not cause any
compatibility issue, because the default CPU port was &seville_port8
before this change, and still is &seville_port8 now (the numerically
first CPU port is used by default).
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 
 };
 
 &seville_port8 {
-       ethernet = <&enet0>;
+       status = "okay";
+};
+
+&seville_port9 {
        status = "okay";
 };
 
                        seville_port8: port@8 {
                                reg = <8>;
                                phy-mode = "internal";
+                               ethernet = <&enet0>;
                                status = "disabled";
 
                                fixed-link {
                        seville_port9: port@9 {
                                reg = <9>;
                                phy-mode = "internal";
+                               ethernet = <&enet1>;
                                status = "disabled";
 
                                fixed-link {