linux-kernel - Re: socfpga ethernet problems with ethernet in 3.17 with u-boot-2013.01.01

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Message-ID: <54340BF6.4030602@opensource.altera.com>
Date:	Tue, 7 Oct 2014 10:51:18 -0500
From:	Dinh Nguyen <dinguyen@...nsource.altera.com>
To:	Pavel Machek <pavel@...x.de>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <marex@...x.de>
Subject: Re: socfpga ethernet problems with ethernet in 3.17 with u-boot-2013.01.01

On 10/07/2014 07:10 AM, Pavel Machek wrote:
> Hi!
> 
> After some testing:
> 
> u-boot-2013.01.01 + linux-3.17 => ethernet does	not work
>                   (unless ethernet is used in u-boot, for example
>                   using ping)
> u-boot-marex-20140920a + linux-3.17 => working ethernet
> 
> One of our guesses is that maybe we don't pull ethernet out of reset
> in the first case?
> 

v3.17 has the reset driver framework that the stmmac driver uses to
deassert the reset.

Dinh

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