Dne 10.9.2015 v 13:14 Robert Jarzmik napsal(a):
> Petr Cvek <petr.c...@tul.cz> writes:
>
>> Dne 9.9.2015 v 08:25 Robert Jarzmik napsal(a):
>>> Petr Cvek <petr.c...@tul.cz> writes:
>>>
>>>> Dne 8.9.2015 v 22:24 Petr Cvek napsal(a):
>>>>>
>>>>> Did you defined resources somewhere? Actual resources are in
>>>>> "pxa_ir_resources" variable at:
>>> I have them in patch [1], which is exactly the patch you have made yourself.
>>
>> Is there a mailing list for this specific patch? It seems I did not get any
>> mail with it.
> Should have been posted to linux arm kernel mailing list, unless my mailer
> failed ...
>
Searching for:
"ARM: pxa: add resources to pxaficp_ir"
did not found anything, same was for "ficp" in the
linux-arm-kernel/netdev/linux-kernel
mailing list archive.
>> BTW This patch required update of my kernel repo. It seems that my:
>>
>> magician.c patches + ficp patch + new dma engine
>>
>> does not work for me at all. Kernel throws some panic about interrupts and
>> then
>> it ends in an infinite stack dumping loop. Fault occurs before rootfs is
>> mounted, so probably around MMC init (with removed SD card it fails normally
>> with no rootfs found error).
> Could you send me (privately) the stack you're getting please. This is
> something
> I'd like to catch up early in the -rc releases.
Well this will be problem as I cannot save anything to an SD card after and
during the failure.
Only viable interfaces would be earlycon on an infraport or high speed camera
on LCD :-).
But I was able to revert this commit:
6464b71409511939efce1ae4fb4ec6e3483b11b2 mmc: pxamci: switch
over to dmaengine use
and after that I am able to boot.
>
> Now with your stack, could you also give me the upstream commit id of the tip
> of
> the tree you're using (before your patches) please ?
It is probably irelevant now, but for complete information:
Discovered on my working repo: mainline b8889c4fc6ba03e289cec6a4d692f6f080a55e53
Still present on fresh downloaded: linux-next
22dc312d56ba077db27a9798b340e7d161f1df05
>
> And it is true I have not tested the rootfs special case, where drivers are
> not
> yet initialized (and more specifically gpio and interrupt chip). Your
> backtrace
> should tell me if you fall into this category of issues ... but I digress,
> this
> has no link with pxaficp.
Should I start new thread? (same bug can be present in the FICP too)
I will try to configure an initrd rootfs this should create more ways to save
kernel log.
Anyway after mmc dma revert I was still not able to start FICP. There is an
error:
Unable to handle kernel paging request at virtual address 32e00004
from pxa_irda_startup() and it seems it is caused by register definitions. For
example:
writel_relaxed((val), (irda)->stuart_base + (off));
is called by
stuart_writel(si, 0, STIER);
but STIER is not just an offset, but full register address:
__REG(0x40700004)
So the definition should be changed, unless there is another patch I did not
received (in that case, send me full patchset again please) :-).
Best regards,
Petr
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