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From: Eugene Surovegin <ebs@ebshome.net>
To: Brian Kuschak <bkuschak@yahoo.com>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: 440gx ethernet lockup
Date: Tue, 2 Dec 2003 19:43:02 -0800	[thread overview]
Message-ID: <20031203034302.GA27648@gate.ebshome.net> (raw)
In-Reply-To: <20031202210118.39431.qmail@web40901.mail.yahoo.com>


On Tue, Dec 02, 2003 at 01:01:18PM -0800, Brian Kuschak wrote:
>
> I found the problem.  Our SEEPROM was misconfigured to
> set the MAL clock to PLB/4.  This resulted in a MAL
> clock of 41MHz, apparently too slow...  After changing
> the MAL clock to PLB/1, the system ran for days
> without any problems.  Unfortunately I couldn't find
> any IBM docs which specify requirements for the MAL
> clock, and IBM still hasn't responded.
>

Well, I just checked 440GX manual and it does states that minimum MAL
clock is 45MHz (see CPR0_MALD register definition).

Eugene.

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

  parent reply	other threads:[~2003-12-03  3:43 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-11-21  1:54 440gx ethernet lockup Brian Kuschak
2003-11-21  2:36 ` Eugene Surovegin
2003-11-21  6:32   ` Brian Kuschak
2003-11-21  7:11     ` Eugene Surovegin
2003-12-02 21:01       ` Brian Kuschak
2003-12-02 21:57         ` Cort Dougan
2003-12-03  3:43         ` Eugene Surovegin [this message]
2003-12-03 18:28           ` Brian Kuschak

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