Re: Linux v2.6.17 - PCI Bus hidden behind transparent bridge

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On Mon, Jul 17, 2006 at 09:31:28 -0600, Grant Grundler wrote:

> On Mon, Jul 17, 2006 at 04:29:17PM +0200, Julien Cristau wrote:
> > Loading the driver with modprobe doesn't change anything (it just
> > outputs the 'Loaded prism54 driver' line), the device still doesn't
> > appear in lspci or ifconfig -a.
> 
> Uhm, that's a different symptom than "doesn't work" :)
> thanks for clarifying.
> 
Sorry for being unclear in my first mail :/

> Sounds more like a problem with the Cardbus controller not providing
> access to PCI config space, not telling PCI generic code there is a
> PCI bus below it, or something like that.
> 
> Can you post "lspci -vvv -s 02:09" output for 2.6.17 as well?
> I'd like to compare the CardBus bridge config info for both (2:09.0
> and 02:09.1) controllers on both kernel releases.
> 
Here it is:

02:09.0 CardBus bridge: Texas Instruments PCI1520 PC card Cardbus Controller (rev 01)
	Subsystem: Acer Incorporated [ALI] Unknown device 1027
	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: 168, Cache Line Size: 32 bytes
	Interrupt: pin A routed to IRQ 11
	Region 0: Memory at 80101000 (32-bit, non-prefetchable) [size=4K]
	Bus: primary=02, secondary=03, subordinate=06, sec-latency=176
	Memory window 0: 20000000-21fff000 (prefetchable)
	Memory window 1: 26000000-27fff000
	I/O window 0: 00007400-000074ff
	I/O window 1: 00007800-000078ff
	BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset- 16bInt- PostWrite+
	16-bit legacy interface ports at 0001

02:09.1 CardBus bridge: Texas Instruments PCI1520 PC card Cardbus Controller (rev 01)
	Subsystem: Acer Incorporated [ALI] Unknown device 1027
	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: 168, Cache Line Size: 32 bytes
	Interrupt: pin B routed to IRQ 11
	Region 0: Memory at 80102000 (32-bit, non-prefetchable) [size=4K]
	Bus: primary=02, secondary=07, subordinate=0a, sec-latency=176
	Memory window 0: 22000000-23fff000 (prefetchable)
	Memory window 1: 28000000-29fff000
	I/O window 0: 00007c00-00007cff
	I/O window 1: 00001000-000010ff
	BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite+
	16-bit legacy interface ports at 0001

Thanks for your help!
Julien

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