net: ethoc: don't advertise gigabit speed on attached PHY

OpenCores 10/100 Mbps MAC does not support speeds above 100 Mbps, but does
not disable advertisement when PHY supports them. This results in
non-functioning network when the MAC is connected to a gigabit PHY connected
to a gigabit switch.

The fix is to disable gigabit speed advertisement on attached PHY
unconditionally.

Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

diff --git a/drivers/net/ethernet/ethoc.c b/drivers/net/ethernet/ethoc.c
index f9c1cf5362985d2d73650b9a0bfd28aae662460d..0a8533c0c01a42bd8917d3a8aa72aa0f078ef120 100644 (file)
--- 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;
 }