PCI device not working

Kumar Gala galak at kernel.crashing.org
Fri Oct 5 22:47:24 EST 2012


On Oct 5, 2012, at 3:54 AM, Davide Viti wrote:

> (just realized I did not send this to the mailing list: sorry for the noise)
> 
> Hi Kumar,
> 
> 2012/10/4 Kumar Gala <galak at kernel.crashing.org>:
>> 
>> On Oct 4, 2012, at 7:24 AM, Davide Viti wrote:
>> 
>>> Hi,
>>> it turns out that if define CONFIG_PCI_NOSCAN in u-boot (as per [1]), the
>>> device behind the second controller is detected by the  Linux kernel.
>>> 
>>> Would
>>> you suggest any particular patch I should apply to fix this (I'm using kernel
>>> 2.6.34)
>>> 
>>> thanx alot in advance
>>> Davide
>>> 
>>> [1] http://permalink.gmane.org/gmane.linux.ports.ppc.embedded/20140
>> 
>> My suggestion would be to try and dump all the controller registers between the case that works and doesn't and compare.  There's some minor setting difference that I'm guessing is causing issues.
>> 
>> - k

When I said controller registers, I meant the FSL PCI controller and the CCSR registers not the PCI cfg register space

- k


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