[PATCH] xf86-video-geode: fix GPIO BAR detection with libpciaccess

Andres Salomon dilinger at queued.net
Sat May 23 00:13:06 PDT 2009

On Sat, 23 May 2009 08:19:12 +0300
Tiago Vignatti <vignatti at freedesktop.org> wrote:

> Andres Salomon escreveu:
> > This patch fixes an issue with the GPIO BAR detection.  Basically,
> > with libpciaccess we're finding the ISA device and checking its
> > BARs,
> Well at least the description is wrong: ISA has fixed address
> mappings and doesn't use BARs.

The ISA BARs are a special CS553x thing.  The PCI bus is virtualized,
and the ISA BARs are used for GPIOs, MFGPTS, and ACPI base addresses.
I'm not actually aware of any physical ISA hardware on the southbridge
at all..

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