netdev - [PATCH 1/1] fec: Add support to restart autonegotiate

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Date:	Mon, 17 Jun 2013 07:25:06 -0700
From:	cphealy@...il.com
To:	"David S. Miller" <davem@...emloft.net>,
	Fabio Estevam <fabio.estevam@...escale.com>,
	Frank Li <Frank.Li@...escale.com>,
	Shawn Guo <shawn.guo@...aro.org>,
	Jim Baxter <jim_baxter@...tor.com>, netdev@...r.kernel.org
Cc:	Chris Healy <cphealy@...il.com>
Subject: [PATCH 1/1] fec: Add support to restart autonegotiate

From: Chris Healy <cphealy@...il.com>

Add ethtool operation to restart autonegotiation via the PHY.

Tested on i.MX28EVK.

Signed-off-by: Chris Healy <cphealy@...il.com>
---
 drivers/net/ethernet/freescale/fec_main.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index a667015..a327492 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1436,6 +1436,17 @@ static int fec_enet_set_pauseparam(struct net_device *ndev,
 	return 0;
 }
 
+static int fec_enet_nway_reset(struct net_device *dev)
+{
+	struct fec_enet_private *fep = netdev_priv(dev);
+	struct phy_device *phydev = fep->phy_dev;
+
+	if (!phydev)
+		return -ENODEV;
+
+	return genphy_restart_aneg(phydev);
+}
+
 static const struct ethtool_ops fec_enet_ethtool_ops = {
 	.get_pauseparam		= fec_enet_get_pauseparam,
 	.set_pauseparam		= fec_enet_set_pauseparam,
@@ -1444,6 +1455,7 @@ static const struct ethtool_ops fec_enet_ethtool_ops = {
 	.get_drvinfo		= fec_enet_get_drvinfo,
 	.get_link		= ethtool_op_get_link,
 	.get_ts_info		= fec_enet_get_ts_info,
+	.nway_reset		= fec_enet_nway_reset,
 };
 
 static int fec_enet_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)
-- 
1.8.1.2

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