Re: [Xenomai-core] No hardware interrupts with xenomai on ppc405

[Wolfgang Grandegger <wg@domain.hid>]

Hi Matthias,

Matthias Fuchs wrote:
> Hi,
> 
> I was trying to use some external hardware interupts on a PPC405 board
> as part of a hacking session with Jan to bring up the rtcan driver on
> this board.
> 
> Here are some versions:
> 
> 	Linux Kernel: 2.6.14
> 	Adeos: 1.3-07
> 	Xenomai: from svn (2.3pre, last friday night)
> 
> The first interrupt interrupt was always fine. When the 2nd interupt
> occured, it was never handled and did not cause any action. We used the
> ipipe-tracer and did not see anything related to the 2nd and any further
> interrupt.
> 
> I think that the hardware interrupt is somehow masked and therefore
> never result in any action. So the handling of the first interrupt might
> be incorrect.
> 
> This seems to be ppc or even ppc4xx related because I assume that x86
> platforms do not have this issue. Is this an Adeos issue.
> 
> I will do the same test on a 2.4 kernel next week - if nobody tells me
> that this will be a waste of time.

Could you please add printk statements to the ack, enable and end 
functions to arch/ppc/syslib/ppc4xx_pic.c if the irq number matches. 
Please print also SR, ER and status.

Wolfgang.