From: Marco Cavallini <rtai@domain.hid>
To: Yann.LEPROVOST@wavecom.fr
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-core] Porting xenomai to AT91RM9200
Date: Wed, 07 Jun 2006 17:45:27 +0200 [thread overview]
Message-ID: <4486F497.8060201@domain.hid> (raw)
In-Reply-To: <OF63DA82CD.5D290237-ONC1257186.00524ADB-C1257186.0054CC4F@wavecom.fr>
Yann.LEPROVOST@wavecom.fr ha scritto:
> Hi marco,
>
> There is an issue with porting adeos to AT91RM9200. As i understood, adeos
> handles system timer interrupt directly to keep real time "tsc" up to date.
> To do that, porting xenomai to AT91RM9200 means coding the correct tsc
> handling functions in arch/arm/mach-at91rm9200/time.c (in the same way as
> integrator board).
> That's what i tried to do...
>
> But on AT91RM9200, the system interrupt timer line is shared among other
> system peripherals such as watchdog, serial debug unit, memory controller,
> ...
> I try to demux the interrupt sharing by modifying code of adeos irq
> handling but there are specificities with the interrupt controller I can't
> deal with...
> I have lots of difficulties to understand the overall architecture of the
> adeos/xenomai source code...
>
> At this time, I have an adeos/xenomai patched kernel which freezes when
> launching the idle process... and I 'm a bit lost !?!
Could I please try testing your patch here ?
TIA
--
Marco Cavallini
Koan s.a.s. - Bergamo - ITALIA
Embedded and Real-Time Software Engineering
www.KoanSoftware.com | www.KaeilOS.com
next prev parent reply other threads:[~2006-06-07 15:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-20 17:51 [Xenomai-core] Porting xenomai to AT91RM9200 Yann.LEPROVOST
2006-06-07 13:24 ` Marco Cavallini
2006-06-07 15:20 ` Yann.LEPROVOST
2006-06-07 15:45 ` Marco Cavallini [this message]
2006-06-07 16:23 ` Yann.LEPROVOST
2006-06-07 16:34 ` Jan Kiszka
2006-06-08 14:30 ` Yann.LEPROVOST
2006-06-08 18:12 ` Jan Kiszka
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