Re: [PATCH] cardbus: revert IO window limit

[Linus Torvalds <torvalds@osdl.org>]

On Thu, 22 Jun 2006, Alessio Sangalli wrote:
> 
> # /sbin/lspci -vvx
> 00:00.0 Host bridge: Intel Corp. 82440MX Host Bridge (rev 01)
>         Subsystem: Compaq Computer Corporation: Unknown device 000d
>         Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
>         Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
>         Latency: 64
> 00: 86 80 94 71 06 00 00 22 01 00 00 06 00 40 80 00
> 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 20: 00 00 00 00 00 00 00 00 00 00 00 00 11 0e 0d 00
> 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Ok. We don't actually have any quirks at all for the 82440MX, and that's 
almost certainly _not_ because it doesn't do something strange (all Intel 
host bridges have magic IO ranges), but simply because we haven't hit it 
yet.

And I can't find the docs for the PCI config space for that dang thing.

I bet that there's some magic SMBus IO-range that the 440MX decodes using 
a special magic config setting.

Has anybody found the config space docs for the 82440MX? 

		Linus
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