netdev - Re: [PATCH 2/2] bcm63xx_enet: do not overwrite ENET_CTL

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Date:	Tue, 13 Apr 2010 03:30:30 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	ffainelli@...ebox.fr
Cc:	netdev@...r.kernel.org, mbizon@...ebox.fr
Subject: Re: [PATCH 2/2] bcm63xx_enet: do not overwrite ENET_CTL_REG value

From: Florian Fainelli <ffainelli@...ebox.fr>
Date: Fri, 9 Apr 2010 13:04:52 +0200

> bcm_enet_hw_preinit will correctly set values in ENET_CTL_REG for internal
> or external MII operations, however, bcm_enet_open will blindly overwrite the
> ENET_CTL_REG register value and thus we will loose any changes to it that
> were made in bcm_enet_hw_preinit, rendering external MII operations non-working.
> 
> This would lead to the driver not being able to check for link availability on
> external PHY setups, and thus we would never get to sending packets because
> link was down from the driver side.
> 
> This was completely un-noticed because all boards out there but BCM6338-based
> ones use internal phy on their enet0 interface.
> 
> Signed-off-by: Florian Fainelli <ffainelli@...ebox.fr>

Applied.
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