Subject: [PATCH 1/3] net: ethoc: don't advertise gigabit speed on attached PHY

From: Max Filippov <[email-masked]>
Date: Mon, 27 Jan 2014 07:59:25 +0400

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-masked]>
---
 drivers/net/ethernet/ethoc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/ethoc.c b/drivers/net/ethernet/ethoc.c
index 4de8cfd..0aa1a05 100644
--- a/drivers/net/ethernet/ethoc.c
+++ b/drivers/net/ethernet/ethoc.c
@@ -712,6 +712,8 @@ static int ethoc_open(struct net_device *dev)
 		netif_start_queue(dev);
 	}
 
+	priv->phy->advertising &= ~(ADVERTISED_1000baseT_Full |
+				    ADVERTISED_1000baseT_Half);
 	phy_start(priv->phy);
 	napi_enable(&priv->napi);
 
-- 
1.8.1.4