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Re: Performance counter interrupt on XScale
- To: Mark Salter <msalter at redhat dot com>
- Subject: Re: [ECOS] Performance counter interrupt on XScale
- From: Cristiano Ligieri Pereira <cpereira at ics dot uci dot edu>
- Date: Thu, 6 Sep 2001 15:29:03 -0700 (PDT)
- cc: jlarmour at redhat dot com, ecos-discuss at sourceware dot cygnus dot com
I think you can ignore my message. My problem was not the one I told you
before. It was something else not related to this. Sorry about
that. :-) Steering or not steering the interrupts like I said doesn't make
any difference actually.
Cristiano.
------------------------------------------------------------
Cristiano Ligieri Pereira - http://www.ics.uci.edu/~cpereira
On Thu, 6 Sep 2001, Mark Salter wrote:
> >>>>> Jonathan Larmour writes:
>
> > Cristiano Ligieri Pereira wrote:
> >>
> >> My problem with the interrupts is fixed now, but I think there is a bug in
> >> the IQ80310 port. When using the CCNT as the source of RTC ticks the PMU
> >> interrupts have to be steered to FIQ, otherwise it doens't work properly.
>
> > Do you know what the specific reason is? Do you have a patch?
>
> And are you sure its FIQ? The Rev F boards have a switch which allows
> you to swap FIQ and IRQ inputs. That can lead to a bit of confusion.
>
> --Mark
>
>