2014-04-02 13:14:31

by Shawn Guo

[permalink] [raw]
Subject: Re: [PATCH] ARM: i.MX6: update KSZ9031 phy fixup

On Mon, Mar 24, 2014 at 04:41:41PM +0100, Eric B?nard wrote:
> Hi Hubert,
>
> Le Mon, 24 Mar 2014 16:30:49 +0100 (CET),
> CHAUMETTE Hubert <[email protected]> a ?crit :
> > > From: "Eric B?nard" <[email protected]>
> > > that's board specific (the needed delay depends on the routing delay on
> > > the PCB), so this should not go in a generic file.
> > >
> > > Eric
> > >
> >
> > I admit it may need to be in a separate function, but this file already contains
> > board-specific fixups (for imx6q sabrelite, Data Modul eDM-QMX6).
> >
> true but that's not a reason to add more ;-)
>
> > Anyway, do you have any suggestion for the location I should put it ?
> >
> no idea at the moment, I simply used your patch to bring this issue on
> the ML as we recently needed to patch the default values for testing
> mainline kernel on a custom boards.

Hmm, can such board-specific fixups be pushed down to bootloader?

Shawn


2014-04-02 13:39:13

by Eric Bénard

[permalink] [raw]
Subject: Re: [PATCH] ARM: i.MX6: update KSZ9031 phy fixup

Hi Shawn,

Le Wed, 2 Apr 2014 21:14:08 +0800,
Shawn Guo <[email protected]> a écrit :

>
> On Mon, Mar 24, 2014 at 04:41:41PM +0100, Eric Bénard wrote:
> > Hi Hubert,
> >
> > Le Mon, 24 Mar 2014 16:30:49 +0100 (CET),
> > CHAUMETTE Hubert <[email protected]> a écrit :
> > > > From: "Eric Bénard" <[email protected]>
> > > > that's board specific (the needed delay depends on the routing delay on
> > > > the PCB), so this should not go in a generic file.
> > > >
> > > > Eric
> > > >
> > >
> > > I admit it may need to be in a separate function, but this file already contains
> > > board-specific fixups (for imx6q sabrelite, Data Modul eDM-QMX6).
> > >
> > true but that's not a reason to add more ;-)
> >
> > > Anyway, do you have any suggestion for the location I should put it ?
> > >
> > no idea at the moment, I simply used your patch to bring this issue on
> > the ML as we recently needed to patch the default values for testing
> > mainline kernel on a custom boards.
>
> Hmm, can such board-specific fixups be pushed down to bootloader?
>
that won't work if the kernel reset the PHY.

Eric

2014-04-02 14:14:50

by Ben Dooks

[permalink] [raw]
Subject: Re: [PATCH] ARM: i.MX6: update KSZ9031 phy fixup

On 02/04/14 14:38, Eric Bénard wrote:
> Hi Shawn,
>
> Le Wed, 2 Apr 2014 21:14:08 +0800,
> Shawn Guo <[email protected]> a écrit :
>
>>
>> On Mon, Mar 24, 2014 at 04:41:41PM +0100, Eric Bénard wrote:
>>> Hi Hubert,
>>>
>>> Le Mon, 24 Mar 2014 16:30:49 +0100 (CET),
>>> CHAUMETTE Hubert <[email protected]> a écrit :
>>>>> From: "Eric Bénard" <[email protected]>
>>>>> that's board specific (the needed delay depends on the routing delay on
>>>>> the PCB), so this should not go in a generic file.
>>>>>
>>>>> Eric
>>>>>
>>>>
>>>> I admit it may need to be in a separate function, but this file already contains
>>>> board-specific fixups (for imx6q sabrelite, Data Modul eDM-QMX6).
>>>>
>>> true but that's not a reason to add more ;-)
>>>
>>>> Anyway, do you have any suggestion for the location I should put it ?
>>>>
>>> no idea at the moment, I simply used your patch to bring this issue on
>>> the ML as we recently needed to patch the default values for testing
>>> mainline kernel on a custom boards.
>>
>> Hmm, can such board-specific fixups be pushed down to bootloader?
>>
> that won't work if the kernel reset the PHY.

If it is in device-tree, then you can add it to the phy node.

For earlier Micrel Phys we have a LED mode setting on initialisaion.

--
Ben Dooks http://www.codethink.co.uk/
Senior Engineer Codethink - Providing Genius