Re: MPC8360 : PCI resource allocate error

[Kumar Gala <galak@kernel.crashing.org>]

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

> While trying out various of my PCI slots, I ran into this =20
> interesting error.
>
>
>
> If I try to put a sounc card, Audigy SE, into SLOT 1 and 2 this =20
> error doesn=92t occur.
>
> But when I place it in the 3rd. I get this:  <Note the 02:0b is =20
> 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@f0000000/pci@8500
>
>  result is <NULL>
>
> Try to map irq for 0000:00:19.1...
>
> pci_busdev_to_OF_node(0,0xc9)
>
>  parent is /soc8360@f0000000/pci@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@f0000000/pci@8500
>
>  result is <NULL>
>
>  -> got one, spec 2 cells (0x00000017...) on /soc8360@f0000000/pic@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 =20
> (f=3D101)
>
> PCI: Cannot allocate resource region 0 of device 0000:02:0b.0
>
> PCI: Error while updating region 0000:02:0b.0/0 (f0302001 !=3D =
00302001)
>
> ------------------------------
>
>
>
> What can cause this to not work?

The problem is with the IO resource, for some reason the code things =20
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=