diff --git a/drivers/net/dsa/mv88e6xxx/serdes.c b/drivers/net/dsa/mv88e6xxx/serdes.c
index 20c526c2a9ee648f42521a882fc84f7a53f75b4b..678aaba3d019c5613738a905913739e65b0ca80f 100644
--- a/drivers/net/dsa/mv88e6xxx/serdes.c
+++ b/drivers/net/dsa/mv88e6xxx/serdes.c
@@ -505,9 +505,11 @@ int mv88e6390x_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on)
 static void mv88e6390_serdes_irq_link_sgmii(struct mv88e6xxx_chip *chip,
 					    int port, int lane)
 {
+	u8 cmode = chip->ports[port].cmode;
 	struct dsa_switch *ds = chip->ds;
 	int duplex = DUPLEX_UNKNOWN;
 	int speed = SPEED_UNKNOWN;
+	phy_interface_t mode;
 	int link, err;
 	u16 status;
 
@@ -527,7 +529,10 @@ static void mv88e6390_serdes_irq_link_sgmii(struct mv88e6xxx_chip *chip,
 
 		switch (status & MV88E6390_SGMII_PHY_STATUS_SPEED_MASK) {
 		case MV88E6390_SGMII_PHY_STATUS_SPEED_1000:
-			speed = SPEED_1000;
+			if (cmode == MV88E6XXX_PORT_STS_CMODE_2500BASEX)
+				speed = SPEED_2500;
+			else
+				speed = SPEED_1000;
 			break;
 		case MV88E6390_SGMII_PHY_STATUS_SPEED_100:
 			speed = SPEED_100;
@@ -541,8 +546,22 @@ static void mv88e6390_serdes_irq_link_sgmii(struct mv88e6xxx_chip *chip,
 		}
 	}
 
+	switch (cmode) {
+	case MV88E6XXX_PORT_STS_CMODE_SGMII:
+		mode = PHY_INTERFACE_MODE_SGMII;
+		break;
+	case MV88E6XXX_PORT_STS_CMODE_1000BASE_X:
+		mode = PHY_INTERFACE_MODE_1000BASEX;
+		break;
+	case MV88E6XXX_PORT_STS_CMODE_2500BASEX:
+		mode = PHY_INTERFACE_MODE_2500BASEX;
+		break;
+	default:
+		mode = PHY_INTERFACE_MODE_NA;
+	}
+
 	err = mv88e6xxx_port_setup_mac(chip, port, link, speed, duplex,
-				       PAUSE_OFF, PHY_INTERFACE_MODE_NA);
+				       PAUSE_OFF, mode);
 	if (err)
 		dev_err(chip->dev, "can't propagate PHY settings to MAC: %d\n",
 			err);