diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 6cdc1b8f8c4d8..cb4c45c81a853 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -272,6 +272,10 @@
 #define QCA808X_CDT_STATUS_STAT_OPEN		2
 #define QCA808X_CDT_STATUS_STAT_SHORT		3
 
+/* QCA808X 1G chip type */
+#define QCA808X_PHY_MMD7_CHIP_TYPE		0x901d
+#define QCA808X_PHY_CHIP_TYPE_1G		BIT(0)
+
 MODULE_DESCRIPTION("Qualcomm Atheros AR803x and QCA808X PHY driver");
 MODULE_AUTHOR("Matus Ujhelyi");
 MODULE_LICENSE("GPL");
@@ -2000,6 +2004,17 @@ static int qca808x_get_features(struct phy_device *phydev)
 	 */
 	linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, phydev->supported);
 
+	/* As for the qca8081 1G version chip, the 2500baseT ability is also
+	 * existed in the bit0 of MMD1.21, we need to remove it manually if
+	 * it is the qca8081 1G chip according to the bit0 of MMD7.0x901d.
+	 */
+	ret = phy_read_mmd(phydev, MDIO_MMD_AN, QCA808X_PHY_MMD7_CHIP_TYPE);
+	if (ret < 0)
+		return ret;
+
+	if (QCA808X_PHY_CHIP_TYPE_1G & ret)
+		linkmode_clear_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported);
+
 	return 0;
 }