Subject: Re: PCI Card Interupt
To: Donald Lee <MacPPC1@caution.icompute.com>
From: Michael <macallan18@earthlink.net>
List: port-macppc
Date: 05/17/2005 22:17:30
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Hello,

> >date: 2004/12/07 15:42:08;  author: briggs;  state: Exp;  lines: +17
-7
> >Bring in some code to deal with devices in the lower slots of a UMAX
> >S900 and perhaps PowerMac 9500.  These slots sit behind a PCI-PCI
> >bridge, and devices in those slots inherit the PCI-PCI bridge
> >interrupt.
>=20
> FWIW - I'm almost certain that the 9500 did *not* have a PCI-PCI
> bridge on the mboard.=20

It doesn't. No idea why that's in the commit message.

> There were two bus controllers.  This is  why the UMAX boxen were a
> little strange with some PCI cards, cuz Mac OS 7/8/9 didn't support
> the PCI-PCI bridge properly.

Seems to work here, at least with my USB card. But some graphics
boards have weird firmware that doesn't like the bridge at all ( think
Matrox ).

have fun
Michael

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