netdev - Re: [PATCH 2/13] tg3: 5784 / 5764 GPHY power down fix

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Date:	Mon, 12 Nov 2007 21:08:20 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	mcarlson@...adcom.com
Cc:	netdev@...r.kernel.org, andy@...yhouse.net, mchan@...adcom.com
Subject: Re: [PATCH 2/13] tg3: 5784 / 5764 GPHY power down fix

From: "Matt Carlson" <mcarlson@...adcom.com>
Date: Fri, 09 Nov 2007 16:38:40 -0800

> 5784 and 5764 devices fail to link / pass traffic after one load /
> unload cycle.  This happens because of a hardware bug in the new CPMU.
> During normal operation, the MAC depends on the PHY clock being
> available.  When the PHY is powered down, the clock the MAC depends on
> is disabled.  The fix is to switch the MAC clock to an alternate source
> before powering down the PHY, and to restore the MAC clock to the PHY
> source upon device resume.
> 
> Signed-off-by: Matt Carlson <mcarlson@...adcom.com>
> Signed-off-by: Michael Chan <mchan@...adcom.com>

Applied, thanks Matt.
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