Re: davinci-mdio: failing to connect to PHY

2016-04-04 Thread Petr Kulhavy
On 04.04.2016 15:58, Andrew Lunn wrote: On Mon, Apr 04, 2016 at 03:50:02PM +0200, Petr Kulhavy wrote: Hi Andrew, thanks a lot for the link. In the meantime I've understood the issue better. It is due to the fact that the PHY is pin-strapped to address 1 and broadcast (at address 0) is enable

Re: davinci-mdio: failing to connect to PHY

2016-04-04 Thread Andrew Lunn
On Mon, Apr 04, 2016 at 03:50:02PM +0200, Petr Kulhavy wrote: > > > On 04.04.2016 14:31, Andrew Lunn wrote: > >Hi Petr > > > >You might want to take a look at: > > > >http://lxr.free-electrons.com/source/drivers/net/ethernet/ti/davinci_mdio.c#L137 > > > >It seems to be asking the hardware about t

Re: davinci-mdio: failing to connect to PHY

2016-04-04 Thread Petr Kulhavy
On 04.04.2016 14:31, Andrew Lunn wrote: Hi Petr You might want to take a look at: http://lxr.free-electrons.com/source/drivers/net/ethernet/ti/davinci_mdio.c#L137 It seems to be asking the hardware about the phy mask. Andrew Hi Andrew, thanks a lot for the link. In the meantime I'

Re: davinci-mdio: failing to connect to PHY

2016-04-04 Thread Andrew Lunn
On Mon, Apr 04, 2016 at 10:18:30AM +0200, Petr Kulhavy wrote: > Hi, > > I'm experiencing a peculiar problem with PHY communication in the > current davinci-mdio.c driver. > After upgrading from kernel 3.17 to 4.5 my DT based AM1808 board > started having issues with the PHY communication. > The MA