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net: phy: atheros: Fix problem with phy_reset() clearing BMCR

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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>
Acked-by: Stefan Agner <stefan@agner.ch>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Alison Wang 2016-02-19 15:52:28 +08:00 committed by Joe Hershberger
parent 24862c640e
commit 903d384d40
1 changed files with 3 additions and 0 deletions
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3
drivers/net/phy/atheros.c
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@ -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;
}