[LinuxBIOS] badly initialized (?) pci bridge on the M57SLI (with irq table and mptable)

Uwe Hermann uwe at hermann-uwe.de
Mon Sep 24 23:36:15 CEST 2007


On Thu, Sep 20, 2007 at 09:44:33AM -0700, yhlu wrote:
> please try to move
> 
> RES_PCI_IO, PCI_ADDR(0, 1, 0, 0x78), 0xC0FFFFFF, 0x19000000,
> 
> from
> ctrl_conf_master_only
> to
> ctrl_conf_mcp55_only

Nice, thanks!

That fixes the problem for me on the MS-7260 (K9N Neo), which is
MCP55-based. I verified that a PCI VGA card works fine in any of
the three PCI slots.

I'll post a patch in a few minutes. Can you give us a good commit
message for this? What exactly does the fix do and why?

Btw, I also tried a PCI NIC which did not always work, I was seeing some
funny effects; it worked in slot 1 when I first tried the patch, but not
in slot 2 or 3. Later I couldn't reproduce it working in slot 1 either.
This may be NIC-related or a problem in the emulator (?) as the VGA card
I mentioned above works fine in every slot (and reproducible, I tried
booting multiple times for each slot).

Boot logs without any PCI card and with the VGA card in slot 1 attached.


Uwe.
-- 
http://www.hermann-uwe.de  | http://www.holsham-traders.de
http://www.crazy-hacks.org | http://www.unmaintained-free-software.org
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