netdev - Re: [PATCH] remove vlan tags in CPSW dual emac mode

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Message-ID: <51E41A34.4030000@newflow.co.uk>
Date:	Mon, 15 Jul 2013 16:50:12 +0100
From:	Mark Jackson <mpfj-list@...flow.co.uk>
To:	Mugunthan V N <mugunthanvnm@...com>,
	Markus Brunner <systemprogrammierung.brunner@...il.com>
CC:	netdev@...r.kernel.org, davem@...emloft.net,
	linux-arm-kernel@...ts.infradead.org, linux-omap@...r.kernel.org
Subject: Re: [PATCH] remove vlan tags in CPSW dual emac mode

On 15/07/13 13:45, Mugunthan V N wrote:
> On 7/13/2013 12:55 AM, Mark Jackson wrote:
>> On 12/07/13 19:35, Mugunthan V N wrote:
>>> On 7/12/2013 7:27 PM, Mark Jackson wrote:
>> [snip]
>>
>>>> Just to update this (old) thread ...
>>>>
>>>> I can still confirm that *without* the above patch, I am *unable* to use both network
>>>> ports on our AM335x board.
>>>>
>> [snip]
>>
>>>> So I'm not sure what's wrong, but it's *definitely* not correct.
>>>>
>>>>
>>> I am sure that current code in mainline works for Dual EMAC. I can test it
>>> again and share the images with you if are interested. But had tested with DHCP
>>> on both the interfaces.
>> Hmmm ... well it's not working for me.  What hardware are you testing it on ?
>>
>> I tried DHCP to start with, and switched to static IP when that failed.
>> Then I recalled this patch and re-applied it ... hey presto !!
>>
>> Markus, are you still using this patch ?
>>
> Today I have tested the Dual EMAC on my am335x-evmsk and its working fine with
> net/master branch.
> I had 3 patches additional to net/master in which two for basic boot of EVMsk
> and one for enabling Dual EMAC. I had pushed the branch in the below repo
> repo:
> git://git.ti.com/~mugunthanvnm/ti-linux-kernel/mugunth-connectivity-linux-feature-tree.git
> branch: dual-emac

Okay ... I can't test that at the moment as I can only boot from MMC as there's
currently no support for MMC booting in the mainline kernel.

So ... the code works for you, but not for me.

I guess the other difference is that I'm not using the same PHY (we use a 10/100
SMSC 8710A, not the GbE Atheros part).

Could that make any difference ?

Markus, are you still seeing the same issue ?  What PHY are you using ?

Cheers
Mark J.
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