PCI resource allocation MPC8540ADS

Kumar Gala galak at kernel.crashing.org
Thu Aug 24 09:06:26 EST 2006


On Aug 23, 2006, at 4:11 PM, Clint Thomas wrote:

> Hey guys,
>
> I have a development board based loosely off the MPC8540ADS design  
> that I am trying to move to the Linux kernel 2.6. I already have  
> this system working successfully in Linux Kernel 2.4, but after  
> dealing with compilation and load errors, i've come to the point  
> where I can get to a console. However, this problem at boot time  
> keeps me from using a lot of onboard hardware. When I enable PCI  
> support in the Kernel configuration, this is the text I get at boot  
> time...

which 2.6 kernel are you using?

> PCI: Probing PCI hardware
> PCI: Cannot allocate resource region 1 of PCI bridge 1
> PCI: Cannot allocate resource region 2 of PCI bridge 1
> PCI: bridge 1 resource 2 moved to 9ff00000..9fffffff
> PCI: Cannot allocate resource region 1 of PCI bridge 2
> PCI: Cannot allocate resource region 2 of PCI bridge 2
> PCI: bridge 2 resource 2 moved to 9fe00000..9fefffff
> PCI: Cannot allocate resource region 1 of device 0000:00:14.0
> PCI: Cannot allocate resource region 2 of device 0000:00:14.0
> PCI: Cannot allocate resource region 0 of device 0000:01:01.0
> PCI: Cannot allocate resource region 1 of device 0000:01:01.0
> PCI: Cannot allocate resource region 2 of device 0000:01:01.0
> PCI: Cannot allocate resource region 0 of device 0000:01:05.0
> PCI: Cannot allocate resource region 1 of device 0000:01:05.0
> PCI: Cannot allocate resource region 2 of device 0000:01:05.0
> PCI: Cannot allocate resource region 0 of device 0000:01:06.0
> PCI: Cannot allocate resource region 0 of device 0000:01:06.1
> PCI: Cannot allocate resource region 0 of device 0000:01:06.2
> PCI: Failed to allocate mem resource #0:1000000 at 0 for 0000:01:01.0
> PCI: Failed to allocate I/O resource #1:100 at 1000 for 0000:01:01.0
> PCI: Failed to allocate mem resource #2:1000 at 0 for 0000:01:01.0
> PCI: Failed to allocate mem resource #0:10000 at 0 for 0000:01:05.0
> PCI: Failed to allocate mem resource #2:10000 at 0 for 0000:01:05.0
> PCI: Failed to allocate mem resource #0:1000 at 0 for 0000:01:06.0
> PCI: Failed to allocate mem resource #0:1000 at 0 for 0000:01:06.1
> PCI: Failed to allocate mem resource #0:100 at 0 for 0000:01:06.2
>
> the system is using a PLX PCI bridge chip. Like I said, this works  
> fine in my 2.4 distribution. Thanks for any and all help!

can you post an lspci -v output.

- kumar



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