Re: [Xenomai-help] PowerPC irq unmask

[Federico Ridolfo <federico.ridolfo@domain.hid>]

Philippe Gerum wrote:
> Federico Ridolfo wrote:
>   
>> Hi all,
>> my platform is a mpc5200b based one. I wrote
>> some rtdm driver for that platform on linux-2.6.18
>> kernel. Some info:
>> - ARCH=ppc
>> - no fdt (so no dts)
>> - u-boot
>> - xenomai 2.3.2,
>> - adeos-ipipe-2.6.18-ppc-1.5-01.patch
>> All works fine.
>>
>> Now i want to use:
>> - ARCH = powerpc
>> - linux kernel from denx: ipipe-2.6-26-powerpc-2.4-03
>> - fdt (so i have a dts file)
>> - xenomai-2.4.6.1
>> - u-boot
>> Ok. My board boots, all peripheral s work. Xenomai works, but
>> my rtdm drivers don't work. The problem is that the rtdm_irq_request
>> returns -ENODEV coming from line 166 in wrappers.h:
>> ...
>> #else /* > 2.6.19 */
>> #define rthal_irq_chip_enable(irq)                    \
>>     ({                                \
>>         int __err__ = 0;                    \
>>         if (unlikely(rthal_irq_handlerp(irq)->unmask == NULL))    \
>>             __err__ = -ENODEV;     \
>>         else                            \
>>             rthal_irq_handlerp(irq)->unmask(irq);        \
>>         __err__;                        \
>>     })
>> ...
>> Seems that adeos doesn't not set the unmask function. In the linux kernel
>> the right functions for my pic in in
>>     
>
> Adeos reuses what Linux provides. In this case, an unmask routine is provided
> for all the SDMA, external, peripheral and main interrupt sources.
>
> Which IRQ are you trying to grab? What does you code look like?
I wrote 2 rtdm drivers. The first one tries to grab  MPC52xx_GPIO_IRQ (= 12)
in order to use USB1_9 of MPC5200B has an interrupt pin.
The second driver is a RTDM SPI driver for PSC3 (full spi mode)
and PSC6, so i'm trying to grap MPC52xx_PSC3_IRQ (= 42) and 
MPC52xx_PSC6_IRQ (= 43).

>   
>> arch/powerpc/platforms/52xx/mpc52xx_pic.c
>> I thing i have to add some code in mpc52xx_pic.c in order to match
>> device tree table
>> and also something in my dts file.
>>     
>
> Don't do that. It would be wrong.
>   
mmm... some .config mistake? I don't known...
>  Any help is very usefull!!!
>   
>> Thanks
>>
>>
>> --
>> chicco
>>
>> _______________________________________________
>> Xenomai-help mailing list
>> Xenomai-help@domain.hid
>> https://mail.gna.org/listinfo/xenomai-help
>>
>>     
>
>
>   


--
Dott. Ing. Federico Ridolfo
COL Giovanni Paolo S.P.A.
Stabilimento Catania
Via Luigi Pirandello,Contrada Cugno, 95040 Piano Tavola, BELPASSO (CT)
tel. +39 095 7133088
e-mail: federico.ridolfo@domain.hid

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