In commit <a058052c358c> [net: phy: do not read configuration register on reset], phy_reset() will clear the BMCR register. Bit 12(AUTO_NEGOTIATION) is cleared too. It causes auto-negotiation timeout error on Atheros's PHY AR8033.
To fix this problem, genphy_config_aneg() and genphy_restart_aneg() needs to be called in ar8035_config() to enable and restart auto-negotiation.
Signed-off-by: Alison Wang alison.wang@nxp.com --- drivers/net/phy/atheros.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/net/phy/atheros.c b/drivers/net/phy/atheros.c index ba57b1a..e57c412 100644 --- a/drivers/net/phy/atheros.c +++ b/drivers/net/phy/atheros.c @@ -33,6 +33,9 @@ static int ar8035_config(struct phy_device *phydev)
phydev->supported = phydev->drv->features;
+ genphy_config_aneg(phydev); + genphy_restart_aneg(phydev); + return 0; }