netdev - Re: [PATCH net-next v1 1/1] net: fec: init MAC prior to mii bus probe

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Date:	Tue, 23 Jun 2015 07:11:23 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	B38611@...escale.com
Cc:	netdev@...r.kernel.org, stephen@...workplumber.org,
	Frank.Li@...escale.com
Subject: Re: [PATCH net-next v1 1/1] net: fec: init MAC prior to mii bus
 probe

From: Fugang Duan <B38611@...escale.com>
Date: Tue, 23 Jun 2015 15:32:51 +0800

> Below case causes mii bus probe failed:
> ifconfig eth0 down -> suspend/resume with Mega/fax mix off -> ifconfig eth0 up
> 
> In i.MX6SX/i.MX7D chip, Mega/fast mix off feature is supported that means most of
> SOC power will be off including ENET MAC for power saving. Once ENET MAC power
> off, all initialized MAC registers reset to default, so in the case, it must
> init MAC prior to mii bus probe.
> 
> Signed-off-by: Fugang Duan <B38611@...escale.com>

Applied.
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