Problem with OF interrupt parsing code

Gerhard Pircher gerhard_pircher at gmx.net
Tue Oct 2 22:46:06 EST 2007


-------- Original-Nachricht --------
> Datum: Mon, 01 Oct 2007 16:26:14 -0500
> Von: Scott Wood <scottwood at freescale.com>
> An: Gerhard Pircher <gerhard_pircher at gmx.net>
> CC: linuxppc-dev at ozlabs.org
> Betreff: Re: Problem with OF interrupt parsing code

> > Secondly the AmigaOne is a desktop system with 4 PCI/AGP slots,
> > thus I can't specify device nodes for all possible devices. By looking
> > at pci_read_irq_line() in pci_common.c it should be possible for the
> > kernel to fall back to the interrupt settings in the PCI config space
> > of every device.
> 
> Those interrupt settings are purely a communication vector from firmware 
> to OS.  Is your firmware putting i8259 interrupt numbers in there, and 
> did you set the default interrupt controller?
Yes, the firmware puts the i8259 interrupt numbers in the PCI interrupt
line register and the PIC is setup as default interrupt controller.

Gerhard

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