[LinuxBIOS] More MCP55 hacking

Lu, Yinghai yinghai.lu at amd.com
Wed Dec 13 01:07:20 CET 2006

If still has problem
#make the SB HT chain on bus 0, default is not (0)
#default SB_HT_CHAIN_ON_BUS0=1
Power off your target for a while. You may drive it nuts.


-----Original Message-----
From: linuxbios-bounces at linuxbios.org
[mailto:linuxbios-bounces at linuxbios.org] On Behalf Of Ed Swierk
Sent: Tuesday, December 12, 2006 3:41 PM
To: LinuxBIOS
Subject: Re: [LinuxBIOS] More MCP55 hacking

On 12/12/06, Lu, Yinghai <yinghai.lu at amd.com> wrote:
> ===>
> ##HT Unit ID offset, default is 1, the typical one
> #default HT_CHAIN_UNITID_BASE=0x06
> ##real SB Unit ID, default is 0x20, mean dont touch it at last
> #default HT_CHAIN_END_UNITID_BASE=0x01
> (it will put c51 on unitid 1, and mcp55 on unitid ?)

After commenting out these two options as you suggest, it looks like a
lot more devices are getting initialized; I had to increase HEAPSIZE
to 64 KB to avoid overflowing the heap.

Now, I'm getting an exception during PCI device init; see the attached
boot log.

Does it make sense that the same devices (e.g. 10de:0378) are showing
up on both bus 0 and bus 4?


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