Q: IO window remapping

Q: IO window remapping

[Albrecht Dre_]

Hi all!

I am currently trying to get the PCMCIA package working on a PISMO Powerbook.
The problem it that the Cardbus bridge (a TI 1211) has a odd IO window
definition (from lspci -vv):

00:1a.0 CardBus bridge: Texas Instruments: Unknown device ac1e
	Subsystem: Unknown device 104c:ac1e
	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: 16 set, cache line size 08
	Interrupt: pin A routed to IRQ 58
	Region 0: Memory at 80080000 (32-bit, non-prefetchable)
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
I/O window 0: 00001000-00000fff
	BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite+
	16-bit legacy interface ports at 0007

As a result, any pcmcia package operation (like card insertion) fails as no io
ports can be assigned.

I hope this question is not too dumb: What is the correct range for this IO
window?  Where should I fix it (probabely in arch/ppc/kernel/pmac_pci.c)?

Thanks in advance, Albrecht


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Re: Q: IO window remapping

[Benjamin Herrenschmidt]

On Fri, May 5, 2000, Albrecht Dreß <ad@mpifr-bonn.mpg.de> wrote:

>As a result, any pcmcia package operation (like card insertion) fails as
no io
>ports can be assigned.
>
>I hope this question is not too dumb: What is the correct range for this IO
>window?  Where should I fix it (probabely in arch/ppc/kernel/pmac_pci.c)?
>
>Thanks in advance, Albrecht

The cardbus bridge is on the external PCI of Uni-N, so, on this machine,
the IO base should be 0xf2000000.


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