Legacy ISA registers/interrupts in PCI device tree node
segher at kernel.crashing.org
Tue Jul 17 01:05:49 EST 2007
>>> I wonder, if there is a recommended way to specify ISA register
>>> addresses and interrupts for a PCI device (unlike for a PCI2ISA
>> The PCI binding describes the required way to do this.
> Hmm, I must reread the PCI binding spec. It didn't seem to contain any
> information about this.
You can describe address regions in "reg" that aren't
corresponding to any PCI BAR. There is also a facility
to describe subtractive decoding (though I don't think
you need this).
>> Yes, it should, even if you don't use this in the Linux
>> kernel yet.
> Well, I still have to wire up the IDE interrupts in the platform setup
> code, right?
Sure, if you want those interrupts to work, anyway ;-)
More information about the Linuxppc-dev