diff --cc net/dsa/port.c
index c63cbfbe6489,2f6195d7b741..24015e11255f
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@@ -1686,8 -1720,22 +1686,15 @@@ int dsa_port_phylink_create(struct dsa_
  	if (err)
  		mode = PHY_INTERFACE_MODE_NA;
  
- 	if (ds->ops->phylink_get_caps)
 -	/* Presence of phylink_mac_link_state or phylink_mac_an_restart is
 -	 * an indicator of a legacy phylink driver.
 -	 */
 -	if (ds->ops->phylink_mac_link_state ||
 -	    ds->ops->phylink_mac_an_restart)
 -		dp->pl_config.legacy_pre_march2020 = true;
 -
+ 	if (ds->ops->phylink_get_caps) {
  		ds->ops->phylink_get_caps(ds, dp->index, &dp->pl_config);
+ 	} else {
+ 		/* For legacy drivers */
+ 		__set_bit(PHY_INTERFACE_MODE_INTERNAL,
+ 			  dp->pl_config.supported_interfaces);
+ 		__set_bit(PHY_INTERFACE_MODE_GMII,
+ 			  dp->pl_config.supported_interfaces);
+ 	}
  
  	pl = phylink_create(&dp->pl_config, of_fwnode_handle(dp->dn),
  			    mode, &dsa_port_phylink_mac_ops);