linux-kernel - Re: [PATCH RESEND] net: smsc911x: Reset PHY during initialization

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Message-Id: <20151116.144327.1187971163162596209.davem@davemloft.net>
Date:	Mon, 16 Nov 2015 14:43:27 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	p.fedin@...sung.com
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	steve.glendinning@...well.net
Subject: Re: [PATCH RESEND] net: smsc911x: Reset PHY during initialization

From: Pavel Fedin <p.fedin@...sung.com>
Date: Fri, 13 Nov 2015 09:46:59 +0300

> On certain hardware after software reboot the chip may get stuck and fail
> to reinitialize during reset. This can be fixed by ensuring that PHY is
> reset too.
> 
> Old PHY resetting method required operational MDIO interface, therefore
> the chip should have been already set up. In order to be able to function
> during probe, it is changed to use PMT_CTRL register.
> 
> The problem could be observed on SMDK5410 board.
> 
> Signed-off-by: Pavel Fedin <p.fedin@...sung.com>

Applied.
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