Thread (34 messages) 34 messages, 5 authors, 2007-06-22

Re: [RFC] Device tree for new desktop platform in arch/powerpc

From: Segher Boessenkool <hidden>
Date: 2007-06-21 15:00:40

quoted
quoted
quoted
              reserved-interrupts =3D <2>;
I'm currious about the above though, what is it ?
Quote from the CHRP ISA interrupt controller device binding document:
=93reserved-interrupts=94
Standard property name to define reserved interrupts.
prop-encoded-array: An integer array, encoded with encode-int.
The value of this property shall be a list of ISA interrupts which=20
cannot
be assigned due to cascading, wiring, or other reasons. Only the irq#=20=
part
of the property is pertinent to this use.
I never found any situation where this property is useful
(you need a lot more information to do anything but static
IRQ routing on ISA anyway), but it doesn't harm anything
either.


Segher
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