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mv643xx_eth: fix for disabled autoneg

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When autoneg has been disabled in the PHY (Marvell 88E1118 here), auto
negotiation between MAC and PHY seem non-functional anymore. The only
way I found to workaround this is to manually configure the MAC with the
settings sent to the PHY earlier.

Signed-off-by: Phil Sutter <phil.sutter@viprinet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Phil Sutter 2013-03-06 07:49:02 +00:00 committed by David S. Miller
parent 80028ea1c0
commit 260055bb1f
1 changed files with 51 additions and 4 deletions
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55
drivers/net/ethernet/marvell/mv643xx_eth.c
View file

@ -1081,6 +1081,45 @@ static void txq_set_fixed_prio_mode(struct tx_queue *txq)
/* mii management interface *************************************************/
static void mv643xx_adjust_pscr(struct mv643xx_eth_private *mp)
{
u32 pscr = rdlp(mp, PORT_SERIAL_CONTROL);
u32 autoneg_disable = FORCE_LINK_PASS |
DISABLE_AUTO_NEG_SPEED_GMII |
DISABLE_AUTO_NEG_FOR_FLOW_CTRL |
DISABLE_AUTO_NEG_FOR_DUPLEX;
if (mp->phy->autoneg == AUTONEG_ENABLE) {
/* enable auto negotiation */
pscr &= ~autoneg_disable;
goto out_write;
}
pscr |= autoneg_disable;
if (mp->phy->speed == SPEED_1000) {
/* force gigabit, half duplex not supported */
pscr |= SET_GMII_SPEED_TO_1000;
pscr |= SET_FULL_DUPLEX_MODE;
goto out_write;
}
pscr &= ~SET_GMII_SPEED_TO_1000;
if (mp->phy->speed == SPEED_100)
pscr |= SET_MII_SPEED_TO_100;
else
pscr &= ~SET_MII_SPEED_TO_100;
if (mp->phy->duplex == DUPLEX_FULL)
pscr |= SET_FULL_DUPLEX_MODE;
else
pscr &= ~SET_FULL_DUPLEX_MODE;
out_write:
wrlp(mp, PORT_SERIAL_CONTROL, pscr);
}
static irqreturn_t mv643xx_eth_err_irq(int irq, void *dev_id)
{
struct mv643xx_eth_shared_private *msp = dev_id;
@ -1499,6 +1538,7 @@ static int
mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct mv643xx_eth_private *mp = netdev_priv(dev);
int ret;
if (mp->phy == NULL)
return -EINVAL;
@ -1508,7 +1548,10 @@ mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
*/
cmd->advertising &= ~ADVERTISED_1000baseT_Half;
return phy_ethtool_sset(mp->phy, cmd);
ret = phy_ethtool_sset(mp->phy, cmd);
if (!ret)
mv643xx_adjust_pscr(mp);
return ret;
}
static void mv643xx_eth_get_drvinfo(struct net_device *dev,
@ -2442,11 +2485,15 @@ static int mv643xx_eth_stop(struct net_device *dev)
static int mv643xx_eth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct mv643xx_eth_private *mp = netdev_priv(dev);
int ret;
if (mp->phy != NULL)
return phy_mii_ioctl(mp->phy, ifr, cmd);
if (mp->phy == NULL)
return -ENOTSUPP;
return -EOPNOTSUPP;
ret = phy_mii_ioctl(mp->phy, ifr, cmd);
if (!ret)
mv643xx_adjust_pscr(mp);
return ret;
}
static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu)