[Xenomai] Xenomai on Atmel SAMA5D3 with a 3.14 kernel

Maxime Ripard maxime.ripard at free-electrons.com
Tue Jun 17 19:11:53 CEST 2014


On Fri, Jun 13, 2014 at 09:01:25PM +0200, Gilles Chanteperdrix wrote:
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> On 06/12/2014 05:03 PM, Maxime Ripard wrote:
> > On Thu, Jun 12, 2014 at 10:37:11AM +0200, Gilles Chanteperdrix
> > wrote:
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> >> On 06/12/2014 09:54 AM, Maxime Ripard wrote:
> >>> On Wed, Jun 11, 2014 at 08:16:15PM +0200, Gilles Chanteperdrix 
> >>> wrote:
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> >>>> On 06/11/2014 11:25 AM, Maxime Ripard wrote:
> >>>>> On Tue, Jun 10, 2014 at 12:01:36PM +0200, Gilles
> >>>>> Chanteperdrix wrote:
> >>>>>> If you compile the kernel without I-pipe and Xenomai
> >>>>>> support and enable the tcb_clksrc clocksource driver does
> >>>>>> it work?
> >>>>> 
> >>>>> Yep, with the exact same config, except for CONFIG_IPIPE
> >>>>> and CONFIG_XENOMAI being disabled, it boots fine.
> >>>>> 
> >>>> Read again, I am not insterested in exactly the same config,
> >>>> I am interested in the a config with tcb_clksrc clocksource,
> >>>> which is disabled by CONFIG_IPIPE. Only if you enable this
> >>>> clocksource do you get to use the atmel_tclib code.
> >>> 
> >>> Let me rephrase then. It works with the exact same config, with
> >>>  CONFIG_IPIPE and CONFIG_XENOMAI disabled, and 
> >>> CONFIG_ATMEL_TCB_CLKSRC enabled.
> >> 
> >> Then I would tend to think that the clocksource is not your
> >> problem and repeat that you should check everything else in the
> >> porting guide.
> > 
> > Ok. I will.
> > 
> Looking rapidly at the code, at least the irq controller and pic
> muting need fixing.

Yep, we've been adapting the irq controller code for the AIC5
yesterday, and it indeed boots up to the userspace.

However, during heavy loads, the system just hangs. I'll take a look
at this and the pic muting next week.

Maxime 

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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