> On 16.02.2016 07:54, Thomas Chou wrote:
> > After commit a058052c358c
> > ("net: phy: do not read configuration register on reset")
> >
> > both 3c120 and 10m50 devboard which use Marvel m88e1111s PHY got this
> > error message,
> >
> > Net: eth0: ethernet@400
> > => ping 192.168.1.5
> > ethernet@400 Waiting for PHY auto negotiation to complete.... TIMEOUT !
> > Using ethernet@400 device
> > host 192.168.1.5 is alive
> >
> > This is because the auto negotiation control bit was cleared by the
> > new phy_reset(). But the m88e1111s_config() does the soft-reset
> > already, there is no need to reset twice. The extra phy_reset() should
> > be removed.
> >
> > Signed-off-by: Thomas Chou <tho...@wytron.com.tw>
> > ---
> > drivers/net/phy/marvell.c | 2 --
> > 1 file changed, 2 deletions(-)
> >
> > diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
> > index eab1558..5badfac 100644
> > --- a/drivers/net/phy/marvell.c
> > +++ b/drivers/net/phy/marvell.c
> > @@ -271,8 +271,6 @@ static int m88e1111s_config(struct phy_device
> > *phydev)
> >
> > genphy_config_aneg(phydev);
> >
> > - phy_reset(phydev);
> > -
> > return 0;
> > }
> >
> >
>
> I've also stumbled over this problem on some boards equipped with the
> Marvell PHY. Could you please take a look at these patches instead:
>
> http://patchwork.ozlabs.org/patch/581316/
> http://patchwork.ozlabs.org/patch/581317/
>
> Do they work for you?
>
> Joe, could you please make sure to push these for this release? As its a
> real bugfix.
>
>
[Alison Wang]
After commit a058052c358c
("net: phy: do not read configuration register on reset")
I find auto negotiation timeout error also occurs on Atheros's PHY AR8033 too.
:(
Best Regards,
Alison Wang
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