MPC8360 : PCI resource allocate error

[Kumar Gala]

On Feb 2, 2007, at 9:04 AM, Russell McGuire wrote:

> While trying out various of my PCI slots, I ran into this  
> interesting error.
>
>
>
> If I try to put a sounc card, Audigy SE, into SLOT 1 and 2 this  
> error doesn’t occur.
>
> But when I place it in the 3rd. I get this:  <Note the 02:0b is  
> SLOT 3>
>
>
>
> <Linux 2.6.20-rc6 compiled for PowerPC / MPC83xx>
>
>
>
> --------------------------------------
>
> PCI: Probing PCI hardware
>
> Try to map irq for 0000:00:19.0...
>
> pci_busdev_to_OF_node(0,0xc8)
>
>  parent is /soc8360 at f0000000/pci at 8500
>
>  result is <NULL>
>
> Try to map irq for 0000:00:19.1...
>
> pci_busdev_to_OF_node(0,0xc9)
>
>  parent is /soc8360 at f0000000/pci at 8500
>
>  result is <NULL>
>
> Try to map irq for 0000:02:0b.0...
>
> pci_busdev_to_OF_node(2,0x58)
>
> pci_busdev_to_OF_node(0,0xc9)
>
>  parent is /soc8360 at f0000000/pci at 8500
>
>  result is <NULL>
>
>  -> got one, spec 2 cells (0x00000017...) on /soc8360 at f0000000/pic at 700
>
> PCI: bridge rsrc 0..ffffffff (100), parent c038d184
>
> PCI: bridge rsrc 80000000..8fffffff (1200), parent c038d168
>
> PCI: bridge rsrc 90000000..9fffffff (200), parent c038d168
>
> PCI: bridge rsrc f0302000..f0302fff (101), parent c03da03c
>
> PCI:0000:02:0b.0: Resource 0: 0000000000302000-000000000030201f  
> (f=101)
>
> PCI: Cannot allocate resource region 0 of device 0000:02:0b.0
>
> PCI: Error while updating region 0000:02:0b.0/0 (f0302001 != 00302001)
>
> ------------------------------
>
>
>
> What can cause this to not work?

The problem is with the IO resource, for some reason the code things  
your PCI IO space is at f03... instead of 000...

Is Slot 3 behind the P2P bridge or directly connected to the 83xx?

Also, what's your .dts look like now.

- k