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Re: Performance counter interrupt on XScale
- To: jlarmour at redhat dot com
- Subject: Re: [ECOS] Performance counter interrupt on XScale
- From: Mark Salter <msalter at redhat dot com>
- Date: Thu, 6 Sep 2001 15:45:29 -0400
- CC: cpereira at ics dot uci dot edu, ecos-discuss at sourceware dot cygnus dot com
- References: <Pine.SOL.4.20.0108281129080.4993-100000@washoe.ics.uci.edu> <3B97D093.1CDF1D2E@redhat.com>
>>>>> 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