netdev - Re: [PATCH v3 0/8] arm64: rockchip: Initial GeekBox enablement

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Date:	Thu, 31 Mar 2016 09:53:26 +0200
From:	Giuseppe CAVALLARO <peppe.cavallaro@...com>
To:	Dinh Nguyen <dinh.linux@...il.com>
CC:	Tomeu Vizoso <tomeu@...euvizoso.net>,
	Andreas Färber <afaerber@...e.de>,
	Fabrice GASNIER <fabrice.gasnier@...com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Heiko Stübner <heiko@...ech.de>,
	<netdev@...r.kernel.org>,
	"open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
	LAKML <linux-arm-kernel@...ts.infradead.org>,
	Gabriel Fernandez <gabriel.fernandez@...aro.org>,
	Alexandre TORGUE <alexandre.torgue@...com>,
	Frank Schäfer <fschaefer.oss@...glemail.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/8] arm64: rockchip: Initial GeekBox enablement

On 3/30/2016 6:44 PM, Dinh Nguyen wrote:
> On Tue, Mar 15, 2016 at 7:36 AM, Giuseppe CAVALLARO
> <peppe.cavallaro@...com> wrote:
>> Hello Tomeu
>>
>> On 3/15/2016 8:23 AM, Tomeu Vizoso wrote:
>>>
>>> Thanks.
>>>
>>> Btw, I have rebased on top of 4.5 this morning and I have noticed that
>>> 88f8b1bb41c6 ("stmmac: Fix 'eth0: No PHY found' regression") got in
>>> there, so I guess we have now a bunch of boards with broken network on
>>> that release:(
>>
>>
>>
>> This is the status on my side: I am testing on an HW that has the
>> Enhanced descriptors and all works fine.
>>
>> On this HW, if I force the driver to use the normal descriptor
>> layout, I meet problems but using both net.git and net-next.
>> So I suspect I cannot ply with this HW forcing the normal descriptors.
>> But! That is helping me to check if, on net-next, the stmmac is
>> actually  programming fine the normal desc case.
>> I have just found another fix so I kindly ask you to apply the temp
>> patch  attached and let me know.
>> In details, I have noticed that the OWN bit was not set in the right
>> TDES0.
>>
>> I also ask you to give me a log of the kernel where the stmmac was
>> running fine. I would like to see which configuration it is selected
>> at runtime by the driver on your box.
>>  From your previous logs (where the stmmac failed), it seems that
>> the  problem is on normal desc but, to be honest, this is the first
>> case I see a 3.50a with HW capability register and w/o Enhanced
>> descriptors.
>>
>
> Are you still working on a fix for:
>
> [    1.196110] libphy: PHY stmmac-0:ffffffff not found
> [    1.200972] eth0: Could not attach to PHY
> [    1.204991] stmmac_open: Cannot attach to PHY (error: -19)
>
> I see the error still there as of linux-next 20160330.

this could be because the fixes have been not applied on net-next
I will check and resend all asap

peppe

>
> Dinh
>