diff --git a/drivers/net/ethernet/ethoc.c b/drivers/net/ethernet/ethoc.c
index f9c1cf5362985d2d73650b9a0bfd28aae662460d..0a8533c0c01a42bd8917d3a8aa72aa0f078ef120 100644
--- a/drivers/net/ethernet/ethoc.c
+++ b/drivers/net/ethernet/ethoc.c
@@ -691,6 +691,11 @@ static int ethoc_mdio_probe(struct net_device *dev)
 	}
 
 	priv->phy = phy;
+	phy->advertising &= ~(ADVERTISED_1000baseT_Full |
+			      ADVERTISED_1000baseT_Half);
+	phy->supported &= ~(SUPPORTED_1000baseT_Full |
+			    SUPPORTED_1000baseT_Half);
+
 	return 0;
 }