Re: geodefb issues, possible patch

[David Vrabel <dvrabel@arcom.com>]

Jorge Luis Zapata Muga wrote:
> 
> ok here it is (i have manually copy it from the screen)
> 
> 00:12.4 VGA compatible controller: Cyrix Corporation 5530 Video
> [Kahlua] (prog-if 00 [VGA])
> Subsystem: Cyrix Corporation Unknown device 0001
> Control: I/0+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
> Stepping- SERR- FastB2B-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=mdeium >TAbort-
> <Tabort- <MAbort< >SERR- <PERR-
> Region 0: Memory at 408000000 (32-bit, non-prefetchable) [size=8M]
> Expansion ROM at <unassigned> [dissabled]

Okay, this is wrong. It should have a 4 KiB region for the video device
registers.  For example:

00:12.4 VGA compatible controller: Cyrix Corporation 5530 Video [Kahlua]
(prog-if 00 [VGA])
	[...]
        Region 0: Memory at 40800000 (32-bit, non-prefetchable) [size=8M]
        Region 1: Memory at 40010000 (32-bit, non-prefetchable) [size=4K]
	[...]

Your BIOS isn't properly initializing the device resources and I'm
rather surprised it ever worked...

Now I thought the kernel was supposed to fix-up problems with PCI
resources and I'm not sure why it isn't doing it in this case.

Perhaps you could try a PCI fixup to straighten out the BARs/resources?

David Vrabel
-- 
David Vrabel, Design Engineer

Arcom, Clifton Road           Tel: +44 (0)1223 411200 ext. 3233
Cambridge CB1 7EA, UK         Web: http://www.arcom.com/


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