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

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On Tue, Mar 15, 2016 at 7:36 AM, Giuseppe CAVALLARO
<peppe.cavallaro@xxxxxx> 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.

Dinh
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