PHY not found after migration of gianfar driver to an of_platform_driver

[Grant Likely]

Hey Michael,

I just wanted to let you know that I'm reading your questions, and I'm
crafting a reply, but it's not trivial and I'm also swamped under at
the moment.  I should have something for you in the next few days.  I
just didn't want you to think you were being ignored.

g.

On Thu, Feb 26, 2009 at 12:15 PM, Michael Guntsche <mike at it-loops.com> wrote:
> Hello everyone,
>
> I recently obtained a Mikrotik RB600 and applied the patch from
> http://cynigram.com/~nfontes/rb600/ to get it up and running with 2.6.28.3
> With this patch applied everything was detected on the board and worked. For
> testing purposes I tried a recent git snapshot and noticed that the gianfar
> driver had problems.
> While the the Gianfar was detected
>
> [    0.549115] Gianfar MII Bus: probed
> [    0.553316] eth0 (fsl-gianfar): not using net_device_ops yet
> [    0.560861] eth0: Gianfar Ethernet Controller Version 1.2,
> 00:0c:42:28:de:4e
> [    0.568024] eth0: Running with NAPI enabled
> [    0.572234] eth0: 256/256 RX/TX BD ring size
> [    0.576802] eth1 (fsl-gianfar): not using net_device_ops yet
> [    0.584200] eth1: Gianfar Ethernet Controller Version 1.2,
> 00:0c:42:28:de:4f
> [    0.591345] eth1: Running with NAPI enabled
> [    0.595575] eth1: 256/256 RX/TX BD ring size
>
> trying to up either of the devices gave me
>
> [    8.724818] mdio at 24520:01 not found
> [    8.728330] eth1: Could not attach to PHY
> [    8.732945] mdio at 24520:01 not found
> [    8.737720] eth1: Could not attach to PHY
>
> I tracked this back to commit "b31a1d8b41513b96e9c7ec2f68c5734cef0b26a4
> gianfar: Convert gianfar to an of_platform_driver". Reverting this one and
> applying for fsc_soc.c made the two nics work again.
> I tried to figure out what was causing the problem in the first place, but
> failed miserably. I am pretty sure it is just a minor probing issue
> somewhere in the code but I am not able to spot that.
> Maybe someone more knowledgeable than me can take a look at it and help me
> out a little bit.
>
> According to lspci the board is a
>
> 00:00.0 Power PC: Freescale Semiconductor Inc MPC8343 (rev 30)
>
> Please CC me in any replies since I am not subscribed to the ML .. yet.
>
> Thanks in advance,
> Michael
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev at ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-dev
>



-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.