[coreboot] Tyan S2912[Fam10] HTX problem

Myles Watson mylesgw at gmail.com
Tue Aug 11 16:42:13 CEST 2009

> -----Original Message-----
> From: coreboot-bounces at coreboot.org [mailto:coreboot-bounces at coreboot.org]
> On Behalf Of Maximilian Thuermer
> Sent: Tuesday, August 11, 2009 8:13 AM
> To: coreboot at coreboot.org
> Subject: [coreboot] Tyan S2912[Fam10] HTX problem
> Hi all,
> I am trying to get an HTX plug in card running on a Tyan S2912 Fam10
> System.
> I tried both Barcelona and Shanghai CPUs and both system setups ended
> booting
> during PCI scanning.
> I am not familiar with the PCI subsystem and the procedures of coreboot
> regarding
> this matter, but when scanning through the code, I do not even see why
> the last
> line is printed out twice whereas the procedure including the printout
> only gets called
> once with the specified parameters. Does anyone have an idea where I
> could start
> searching for a possible solution to my problem.
I would print out the path to each bridge in the scan to see where it's
getting stuck.  You can get that with dev_path(bus->dev).

It looks pretty normal up to that point.  It looks like it found your
chipset, 2 cpus, and a graphics card before it died.

If that doesn't help you track it down, an lspci would be helpful with the
information of which bridge it gets stuck scanning.  The values of the
Configuration Map registers 0xE0-EC might also help you track down where the
PCI requests are being routed.

> PCI: pci_scan_bus returning with max=004
> PCI: pci_scan_bus returning with max=004
I can't tell why it's printed twice either.

Good luck,

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