Problem requesting IRQ with 2.4.2 kernel
Gabriel Paubert
paubert at iram.es
Fri Mar 2 00:33:36 EST 2001
On Tue, 27 Feb 2001, Matt Porter wrote:
> > Bus 0, device 13, function 0:
> > Bridge: Tundra Semiconductor Corp. CA91C042 [Universe]
> > (rev1).
> > IRQ 16.
> > Master Capable. No bursts. Min Gnt=3.
> > Non-prefetchable 32 bit memory at 0xeffef000 [0xeffeffff].
> > I/O at 0xfffe000 [0xfffefff].
> >
> >
> > How can avoid all this pci board to have the same IRQ ?
> > Is this an openPic related problem ?
>
> Interrupt routing problem. IIRC, put a 5 for the interrupt line in
> the entry for Slot 13, Universe II LINT#0. That should get you
> going. Check the 2300 programmer's reference if that interrupt
> doesn't work for you. If the driver is using more LINT inputs than
> that then you'll have to fix the routing as appropriate. It can all
> be rerouted via the Universe II but that's another game.
No problem with this. I decided to use only one interrupt line in the
Universe driver. Everything is routed to LINT#0 (DMA and VIRQ#1 to VIRQ#7
are the only ones used right now, but I route the others to LINT#0 too).
Gabriel.
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