Questions on interrupt vector assignment on MPC8641D
scottwood at freescale.com
Fri Oct 15 04:50:10 EST 2010
On Thu, 14 Oct 2010 12:20:55 -0500
<david.hagood at gmail.com> wrote:
> > It comes from FRR[NIRQ]. It seems that this chip takes a
> > less-than-useful interpretation of what that field means -- it gives
> > the actual number of sources, not the size of the sparsely populated
> > array.
> Perhaps you might want to have a talk with your cow-orkers there, Scott,
> since this is a Freescale part.
Well, it was a coworker who added the workaround, so I assume we're
already aware of the issue.
The description of NIRQ is vague enough that it's hard to argue that
Linux's expectations of what it means are justified.
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