From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <3F0C2898.90508@embeddededge.com>
Date: Wed, 09 Jul 2003 10:37:12 -0400
From: Dan Malek <dan@embeddededge.com>
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To: Dean Matsen <deanm@earthlink.net>
Cc: Eugene Surovegin <ebs@ebshome.net>,
	Dean Matsen <deanmatsen@earthlink.net>,
	linuxppc-embedded@lists.linuxppc.org
Subject: Re: Ethernet PHY chip discovery not working on 855T with  971/972
 chips
References: <3F0B7B28.7040902@earthlink.net> <5.1.0.14.2.20030708195315.038110e8@mail.ebshome.net> <3F0BA671.1050900@embeddededge.com> <3F0BAD39.9060708@earthlink.net>
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Dean Matsen wrote:

> Yes, I see we have no pullup on that line. We do dedicated HVAC
> applications, so we
> don't need to do this search.

But.......the hardware is broken.  The MDIO is supposed to be
an open-drain with a pullup.  I guess you may be lucky the
ends of the connection are driving the line proplerly, but it
could be luck that will run out someday.


	-- Dan


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