Would you mind explain me the last question in previous email?

  You are not leaving any memory space for any of the onchip devices,
the error messages are because the regions of memory that the devices
are expected to be at are already occupied by the PCI space.

Isn't it the PCI IO and PCI MEM space are separated from local memory space?
I think I see the global IO resource and MEM resource have the range of 0x0
- 0xFFFFFFFF.

Thanks,
Luong Ngo

On 10/24/06, Kumar Gala [off-list ref] wrote:

quoted

I'm a bit confused here. If the host bridge is ignored/excluded,
then the region size in BARs will not be allocated corresponding
resource by the PCI subsystem, then how would other PCI devices in
the slots could be allocated in the BAR's range? If I understand
correctly, the PCI devices's resources are allocated based on the
bridge resource, which is assigned statically by PCI subsystem
using hose->mem_space and hose->io_space instead of reading it from
the BARs. Maybe you are saying in the case the CPU is in agent mode
and its PCI host bridge is functioning as a PCI-PCI bridge?

The problem is the host bridge shouldn't be included in BAR
assignment since its the host bridge.  The problem is FSL devices
show up when they scan themselves and the kernel then tries to
allocate resources to them as if they were any other device.

you are correct, the pci subsystem is setup via the hose structure
and not by trying to read BARs on the host controller itself.

- kumar