From: gregory.clement@free-electrons.com (Gregory CLEMENT)
Date: Tue, 03 Mar 2015 13:52:53 +0100
Subject: [PATCH] ARM: ARMADA XP: WRT1900AC: Add support for the Ethernet
 switch
In-Reply-To: <20150303104451.GA10252@lunn.ch>
References: <1425154848-15441-1-git-send-email-andrew@lunn.ch>
 <54F57A41.1040102@free-electrons.com> <20150303104451.GA10252@lunn.ch>
Message-ID: <54F5AEA5.7050502@free-electrons.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On 03/03/2015 11:44, Andrew Lunn wrote:
> On Tue, Mar 03, 2015 at 10:09:21AM +0100, Gregory CLEMENT wrote:
>> Hi Andrew,
>>
>> On 28/02/2015 21:20, Andrew Lunn wrote:
>>> Add a DSA section to the DT blob representing the Ethernet switch.
>>>
>>> Signed-off-by: Andrew Lunn <andrew@lunn.ch>
>>> ---
>>> This patch requires at runtime patches in net-next,
>>> 4c732668f98b96a0fa2645ac220fd9bbc17838c4
>>
>> This dts fragment looks sane. The dependencies is only at runtime so
>> it is less annoying for bissectability. So I tend applying it, however
>> what happens if patch 4c732668f98b96a0fa2645ac220fd9bbc17838c4 is not
>> present. Does the kernel crash? Or does it only make the Ethernet
>> switch not available?
> 
> Hi Gregory
> 
> It does not crash. During probe of DSA, it fails to find the phy's
> attached to the switch ports. This causes the probe to fail and the
> switch drive gets unloaded.

Good. So it is safe to apply this patch to mvebu/dt now.


Thanks,

Gregory


> 
>        Andrew
> 


-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com