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From: Ilya Yanok <yanok@emcraft.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] mpc5xxx_fec/motionpro: disable PHY initialization on motionpro board
Date: Thu, 12 Aug 2010 03:29:50 +0400	[thread overview]
Message-ID: <4C63326E.30205@emcraft.com> (raw)
In-Reply-To: <1281566050-5859-1-git-send-email-yanok@emcraft.com>

Hello All,

On 12.08.2010 02:34, Ilya Yanok wrote:
> Historically PHY intialization was disabled on motionpro board. Then
> at some point PHY init was enabled and only comment message was left.
>    

After looking once more at the history I've found that this problem was 
actually fixed by

commit c00125e07c1ebc125bab40e1e18bceed8be0c162
Author: Bartlomiej Sieka <tur@semihalf.com>
Date:   Sun May 27 16:58:45 2007 +0200

     MPC5XXX, Motion-PRO: Fix PHY initialization problem.

which uses RESET_PHY_R feature to fix PHY initialization late in the 
boot process.
But with drivers that initialize PHYs not during boot process but on the 
first access (I believe mpc5xxx_fec is not the only example) this 
RESET_PHY_R feature is completely broken. What would be the correct way 
to fix this? Should we add reset_phy() call in every driver that uses 
'lazy' PHY initialization?

Regards, Ilya.

      reply	other threads:[~2010-08-11 23:29 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-11 22:34 [U-Boot] [PATCH] mpc5xxx_fec/motionpro: disable PHY initialization on motionpro board Ilya Yanok
2010-08-11 23:29 ` Ilya Yanok [this message]

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