[U-Boot-Users] [PATCH] Add support for Generic PHY in macb

[Michael Trimarchi]

Hi,
----- Messaggio originale -----
> Da: Haavard Skinnemoen <hskinnemoen at atmel.com>
> A: Michael Trimarchi <trimarchimichael at yahoo.it>
> Cc: Michael Schwingen <rincewind at discworld.dascon.de>; u-boot-users at lists.sourceforge.net
> Inviato: Venerdì 22 febbraio 2008, 17:08:56
> Oggetto: Re: [U-Boot-Users] [PATCH] Add support for Generic PHY in macb
> 
> On Fri, 22 Feb 2008 16:02:13 +0000 (GMT)
> Michael Trimarchi  wrote:
> 
> > > In any case, the dm9161a PHY in question does implement MDIO, so it
> > > really should work without any modifications.
> > >   
> > Maybe we can add the for cycle like in linux to check the phy addr?
> 
> Yes, we could do that. But it comes with its own share of problems --
> some boards have a too weak pull-up (or none at all) on the MDIO line,
> so the probing code sometimes thinks it has found a whole bunch of
> PHYs...
> 
> Haavard
>
But the u-boot user may to choice to use the automatic detection, based on
phy_id mask and stop the search on the first one, or somenthing like this.

Michael

 




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