diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 5db96ca52505..99d8d438e465 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -4404,7 +4404,6 @@ static const struct mv88e6xxx_ops mv88e6141_ops = {
 	.port_sync_link = mv88e6xxx_port_sync_link,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
 	.port_set_speed_duplex = mv88e6341_port_set_speed_duplex,
-	.port_max_speed_mode = mv88e6341_port_max_speed_mode,
 	.port_tag_remap = mv88e6095_port_tag_remap,
 	.port_set_policy = mv88e6352_port_set_policy,
 	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
@@ -4797,7 +4796,6 @@ static const struct mv88e6xxx_ops mv88e6190_ops = {
 	.port_sync_link = mv88e6xxx_port_sync_link,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
 	.port_set_speed_duplex = mv88e6390_port_set_speed_duplex,
-	.port_max_speed_mode = mv88e6390_port_max_speed_mode,
 	.port_tag_remap = mv88e6390_port_tag_remap,
 	.port_set_policy = mv88e6352_port_set_policy,
 	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
@@ -4857,7 +4855,6 @@ static const struct mv88e6xxx_ops mv88e6190x_ops = {
 	.port_sync_link = mv88e6xxx_port_sync_link,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
 	.port_set_speed_duplex = mv88e6390x_port_set_speed_duplex,
-	.port_max_speed_mode = mv88e6390x_port_max_speed_mode,
 	.port_tag_remap = mv88e6390_port_tag_remap,
 	.port_set_policy = mv88e6352_port_set_policy,
 	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
@@ -4917,7 +4914,6 @@ static const struct mv88e6xxx_ops mv88e6191_ops = {
 	.port_sync_link = mv88e6xxx_port_sync_link,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
 	.port_set_speed_duplex = mv88e6390_port_set_speed_duplex,
-	.port_max_speed_mode = mv88e6390_port_max_speed_mode,
 	.port_tag_remap = mv88e6390_port_tag_remap,
 	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
 	.port_set_ucast_flood = mv88e6352_port_set_ucast_flood,
@@ -5082,7 +5078,6 @@ static const struct mv88e6xxx_ops mv88e6290_ops = {
 	.port_sync_link = mv88e6xxx_port_sync_link,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
 	.port_set_speed_duplex = mv88e6390_port_set_speed_duplex,
-	.port_max_speed_mode = mv88e6390_port_max_speed_mode,
 	.port_tag_remap = mv88e6390_port_tag_remap,
 	.port_set_policy = mv88e6352_port_set_policy,
 	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
@@ -5241,7 +5236,6 @@ static const struct mv88e6xxx_ops mv88e6341_ops = {
 	.port_sync_link = mv88e6xxx_port_sync_link,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
 	.port_set_speed_duplex = mv88e6341_port_set_speed_duplex,
-	.port_max_speed_mode = mv88e6341_port_max_speed_mode,
 	.port_tag_remap = mv88e6095_port_tag_remap,
 	.port_set_policy = mv88e6352_port_set_policy,
 	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
@@ -5463,7 +5457,6 @@ static const struct mv88e6xxx_ops mv88e6390_ops = {
 	.port_sync_link = mv88e6xxx_port_sync_link,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
 	.port_set_speed_duplex = mv88e6390_port_set_speed_duplex,
-	.port_max_speed_mode = mv88e6390_port_max_speed_mode,
 	.port_tag_remap = mv88e6390_port_tag_remap,
 	.port_set_policy = mv88e6352_port_set_policy,
 	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
@@ -5527,7 +5520,6 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = {
 	.port_sync_link = mv88e6xxx_port_sync_link,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
 	.port_set_speed_duplex = mv88e6390x_port_set_speed_duplex,
-	.port_max_speed_mode = mv88e6390x_port_max_speed_mode,
 	.port_tag_remap = mv88e6390_port_tag_remap,
 	.port_set_policy = mv88e6352_port_set_policy,
 	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
@@ -5590,7 +5582,6 @@ static const struct mv88e6xxx_ops mv88e6393x_ops = {
 	.port_sync_link = mv88e6xxx_port_sync_link,
 	.port_set_rgmii_delay = mv88e6390_port_set_rgmii_delay,
 	.port_set_speed_duplex = mv88e6393x_port_set_speed_duplex,
-	.port_max_speed_mode = mv88e6393x_port_max_speed_mode,
 	.port_tag_remap = mv88e6390_port_tag_remap,
 	.port_set_policy = mv88e6393x_port_set_policy,
 	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 86bf113c9bfa..07671d9fe0c3 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -551,10 +551,6 @@ struct mv88e6xxx_ops {
 	int (*port_set_speed_duplex)(struct mv88e6xxx_chip *chip, int port,
 				     int speed, int duplex);
 
-	/* What interface mode should be used for maximum speed? */
-	phy_interface_t (*port_max_speed_mode)(struct mv88e6xxx_chip *chip,
-					       int port);
-
 	int (*port_tag_remap)(struct mv88e6xxx_chip *chip, int port);
 
 	int (*port_set_policy)(struct mv88e6xxx_chip *chip, int port,
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c
index 66b1b7277281..d7a6d12aadbf 100644
--- a/drivers/net/dsa/mv88e6xxx/port.c
+++ b/drivers/net/dsa/mv88e6xxx/port.c
@@ -344,15 +344,6 @@ int mv88e6341_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
 					       duplex);
 }
 
-phy_interface_t mv88e6341_port_max_speed_mode(struct mv88e6xxx_chip *chip,
-					      int port)
-{
-	if (port == 5)
-		return PHY_INTERFACE_MODE_2500BASEX;
-
-	return PHY_INTERFACE_MODE_NA;
-}
-
 /* Support 10, 100, 200, 1000 Mbps (e.g. 88E6352 family) */
 int mv88e6352_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
 				    int speed, int duplex)
@@ -384,15 +375,6 @@ int mv88e6390_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
 					       duplex);
 }
 
-phy_interface_t mv88e6390_port_max_speed_mode(struct mv88e6xxx_chip *chip,
-					      int port)
-{
-	if (port == 9 || port == 10)
-		return PHY_INTERFACE_MODE_2500BASEX;
-
-	return PHY_INTERFACE_MODE_NA;
-}
-
 /* Support 10, 100, 200, 1000, 2500, 10000 Mbps (e.g. 88E6190X) */
 int mv88e6390x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
 				     int speed, int duplex)
@@ -407,15 +389,6 @@ int mv88e6390x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
 					       duplex);
 }
 
-phy_interface_t mv88e6390x_port_max_speed_mode(struct mv88e6xxx_chip *chip,
-					       int port)
-{
-	if (port == 9 || port == 10)
-		return PHY_INTERFACE_MODE_XAUI;
-
-	return PHY_INTERFACE_MODE_NA;
-}
-
 /* Support 10, 100, 200, 1000, 2500, 5000, 10000 Mbps (e.g. 88E6393X)
  * Function mv88e6xxx_port_set_speed_duplex() can't be used as the register
  * values for speeds 2500 & 5000 conflict.
@@ -509,19 +482,6 @@ int mv88e6393x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
 	return 0;
 }
 
-phy_interface_t mv88e6393x_port_max_speed_mode(struct mv88e6xxx_chip *chip,
-					       int port)
-{
-
-	if (port != 0 && port != 9 && port != 10)
-		return PHY_INTERFACE_MODE_NA;
-
-	if (chip->info->prod_num == MV88E6XXX_PORT_SWITCH_ID_PROD_6361)
-		return PHY_INTERFACE_MODE_2500BASEX;
-
-	return PHY_INTERFACE_MODE_10GBASER;
-}
-
 static int mv88e6xxx_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
 				    phy_interface_t mode, bool force)
 {
diff --git a/drivers/net/dsa/mv88e6xxx/port.h b/drivers/net/dsa/mv88e6xxx/port.h
index c1d2f99efb1c..d662b09bf481 100644
--- a/drivers/net/dsa/mv88e6xxx/port.h
+++ b/drivers/net/dsa/mv88e6xxx/port.h
@@ -501,15 +501,6 @@ int mv88e6390x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
 int mv88e6393x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
 				     int speed, int duplex);
 
-phy_interface_t mv88e6341_port_max_speed_mode(struct mv88e6xxx_chip *chip,
-					      int port);
-phy_interface_t mv88e6390_port_max_speed_mode(struct mv88e6xxx_chip *chip,
-					      int port);
-phy_interface_t mv88e6390x_port_max_speed_mode(struct mv88e6xxx_chip *chip,
-					       int port);
-phy_interface_t mv88e6393x_port_max_speed_mode(struct mv88e6xxx_chip *chip,
-					       int port);
-
 int mv88e6xxx_port_set_state(struct mv88e6xxx_chip *chip, int port, u8 state);
 
 int mv88e6xxx_port_set_vlan_map(struct mv88e6xxx_chip *chip, int port, u16 map);
