--- a/drivers/net/phy/ar40xx.h
+++ b/drivers/net/phy/ar40xx.h
@@ -282,6 +282,13 @@
 #define   AR40XX_PHY_SPEC_STATUS_DUPLEX		BIT(13)
 #define   AR40XX_PHY_SPEC_STATUS_SPEED		BITS(14, 2)
 
+#define	COMBO_PHY_ID	4
+#define QCA807X_CHIP_CONFIGURATION		0x1f	/* Chip Configuration Register  */
+
+#define QCA8075_PHY4_PREFER_FIBER	0x400
+#define PHY4_PREFER_COPPER		0x0
+#define PHY4_PREFER_FIBER		0x1
+
 /* port forwarding state */
 enum {
 	AR40XX_PORT_STATE_DISABLED = 0,
--- a/drivers/net/phy/ar40xx.c
+++ b/drivers/net/phy/ar40xx.c
@@ -612,6 +612,62 @@
 		ar40xx_port_phy_linkdown(priv);
 	else
 		ar40xx_phy_init(priv);
+
+	return 0;
+}
+
+static int phy_prefer_medium_set(struct ar40xx_priv *priv, u16 medium)
+{
+	struct mii_bus *bus;
+	u16 phy_medium;
+
+	bus = priv->mii_bus;
+	phy_medium =
+			mdiobus_read(bus, COMBO_PHY_ID , QCA807X_CHIP_CONFIGURATION);
+
+	if (medium == PHY4_PREFER_FIBER) {
+		phy_medium |= QCA8075_PHY4_PREFER_FIBER;
+	} else {
+		phy_medium &= ~QCA8075_PHY4_PREFER_FIBER;
+	}
+
+	mdiobus_write(bus, COMBO_PHY_ID, QCA807X_CHIP_CONFIGURATION, phy_medium );
+
+	return 0;
+}
+
+static int
+ar40xx_sw_set_preference(struct switch_dev *dev,
+		       const struct switch_attr *attr,
+		       struct switch_val *val)
+{
+	struct ar40xx_priv *priv = swdev_to_ar40xx(dev);
+	u16 pref;
+	if (val->value.i == 0)
+		pref = PHY4_PREFER_COPPER;
+	else
+		pref = PHY4_PREFER_FIBER;
+
+	phy_prefer_medium_set(priv, pref);
+
+	return 0;
+}
+
+static int
+ar40xx_sw_get_preference(struct switch_dev *dev,
+		       const struct switch_attr *attr,
+		       struct switch_val *val)
+{
+	struct ar40xx_priv *priv = swdev_to_ar40xx(dev);
+
+	struct mii_bus *bus;
+	u16 phy_medium;
+
+	bus = priv->mii_bus;
+	phy_medium =
+			mdiobus_read(bus, COMBO_PHY_ID , QCA807X_CHIP_CONFIGURATION);
+
+	val->value.i = phy_medium;
 
 	return 0;
 }
@@ -922,6 +978,14 @@
 		.set = ar40xx_sw_set_linkdown,
 		.max = 1
 	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "preference",
+		.description = "Set fiber/copper combo preference",
+		.set = ar40xx_sw_set_preference,
+		.get = ar40xx_sw_get_preference,
+		.max = 1
+	},
 };
 
 static const struct switch_attr ar40xx_sw_attr_port[] = {