netdev - Re: How to deal with a PHY configuration related to the board?

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Date:	Tue, 14 Feb 2012 11:33:18 +0100
From:	Ludovic Desroches <ludovic.desroches@...el.com>
To:	Baruch Siach <baruch@...s.co.il>
Cc:	Ludovic Desroches <ludovic.desroches@...el.com>,
	linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org,
	"Ferre, Nicolas" <nicolas.ferre@...el.com>
Subject: Re: How to deal with a PHY configuration related to the board?

Hi Baruch,

On Tue, Feb 14, 2012 at 11:43:39AM +0200, Baruch Siach wrote:
> Hi Ludovic,
> 
> On Tue, Feb 14, 2012 at 10:26:06AM +0100, Ludovic Desroches wrote:
> > I am using a Micrel KSZ9021RN PHY and I would like to configure some 
> > registers
> > as 'RGMII Clock and Control Pad Skew' and 'RGMII RX Data Pad Skew'.
> > So the values of these registers are board dependant and I wondering what is
> > the proper way to set them.
> > It seems there is no platform data usable for this case. Having a quick look
> > to other PHYs, the situation seems the same.
> > 
> > Can you give me some clues about how to do this? Did I miss anything which
> > allow to do this?
> 
> See ksz9021rn_phy_fixup() in arch/arm/mach-imx/mach-imx6q.c.
> 

Thanks for your help.

So the solution is to use phy_register_fixup function.

Regards

Ludovic
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