[U-Boot-Users] AMCC 440SP PCI Issue

[U-Boot-Users] AMCC 440SP PCI Issue

[Jeff Stevens]

I am having an issue with my PCI configuration on a
custom board based closely off of the AMCC Luan board
(440SP processor).  When I type "pci 1" or "pci 2"
from the U-Boot prompt, I get a bunch of
"pci_bus_to_hose() failed" messages ("pci 0" returns
fine).  What could cause this.  I pretty much kept the
PCI configuration settings (mmap, config.h, board.c)
from the Luan port.  I checked the bootstrap settings
and all of the settings are identical.  Does anyone
have any idea what could cause this?  I looked at the
hoses structure, and it's empty.

Thanks,
   Jeff Stevens

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[U-Boot-Users] AMCC 440SP PCI Issue

[Stefan Roese]

Hi Jeff,

On Sunday 01 October 2006 04:35, Jeff Stevens wrote:
> I am having an issue with my PCI configuration on a
> custom board based closely off of the AMCC Luan board
> (440SP processor).  When I type "pci 1" or "pci 2"
> from the U-Boot prompt, I get a bunch of
> "pci_bus_to_hose() failed" messages ("pci 0" returns
> fine).  What could cause this.

It seems to me that only the first PCI interface of the Luan is initialized in 
U-Boot. That should be the reason for those error messages.

> I pretty much kept the 
> PCI configuration settings (mmap, config.h, board.c)
> from the Luan port.  I checked the bootstrap settings
> and all of the settings are identical.  Does anyone
> have any idea what could cause this?  I looked at the
> hoses structure, and it's empty.

Which PCI busses are you using on your board? As target or host? Which are 
accessed by your Linux kernel?

Best regards,
Stefan

[U-Boot-Users] AMCC 440SP PCI Issue

[Jeff Stevens]

I am using all three pci busses are host interfaces:

PCIX0: PMC Slot
PCIX1: Fiber Channel Controller
PCIX2: USB Controller
 
When linux does boot, it sees all of these devices
just fine.  However, when it doesn't, it hangs after
it calls pciauto_bus_scan.

Thanks,
   Jeff


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