diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/phy/marvell.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index dd6f54d1b495..6f69b9ba0df8 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -155,8 +155,27 @@ static int marvell_config_aneg(struct phy_device *phydev) return err; err = genphy_config_aneg(phydev); + if (err < 0) + return err; - return err; + if (phydev->autoneg != AUTONEG_ENABLE) { + int bmcr; + + /* + * A write to speed/duplex bits (that is performed by + * genphy_config_aneg() call above) must be followed by + * a software reset. Otherwise, the write has no effect. + */ + bmcr = phy_read(phydev, MII_BMCR); + if (bmcr < 0) + return bmcr; + + err = phy_write(phydev, MII_BMCR, bmcr | BMCR_RESET); + if (err < 0) + return err; + } + + return 0; } static int m88e1121_config_aneg(struct phy_device *phydev) |