diff options
Diffstat (limited to 'drivers/net/phy/micrel.c')
| -rw-r--r-- | drivers/net/phy/micrel.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index 499185eaf..cf6312faf 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -514,6 +514,27 @@ static int ksz8873mll_read_status(struct phy_device *phydev) return 0; } +static int ksz9031_read_status(struct phy_device *phydev) +{ + int err; + int regval; + + err = genphy_read_status(phydev); + if (err) + return err; + + /* Make sure the PHY is not broken. Read idle error count, + * and reset the PHY if it is maxed out. + */ + regval = phy_read(phydev, MII_STAT1000); + if ((regval & 0xFF) == 0xFF) { + phy_init_hw(phydev); + phydev->link = 0; + } + + return 0; +} + static int ksz8873mll_config_aneg(struct phy_device *phydev) { return 0; @@ -772,7 +793,7 @@ static struct phy_driver ksphy_driver[] = { .driver_data = &ksz9021_type, .config_init = ksz9031_config_init, .config_aneg = genphy_config_aneg, - .read_status = genphy_read_status, + .read_status = ksz9031_read_status, .ack_interrupt = kszphy_ack_interrupt, .config_intr = kszphy_config_intr, .suspend = genphy_suspend, |