Re: [Xenomai] Xenomai 2.X on Freescale QorIQ T2080 processor

[Pampolini Matteo <matteo.pampolini@selex-es.com>]

Hi Philippe,

many many thanks for your quick and exhaustive reply, I will start
working on this,
in case of troubles I will ask again for your kind help.

Regards, Matteo

On 07/11/2014 21:34, Philippe Gerum wrote:
> On 11/07/2014 02:00 PM, Pampolini Matteo wrote:
>> Hello there,
>>
>> do you know if all around the world someone is working to port Xenomai
>> 2.X on Freescale QorIQ T2080 processor?
>> Because this processor does not appear in the list of supported ones?
>>
>> If yes, would it be possible to know which patch is used? And if no, may
>> you please point me in the right direction
>> to create it by myself and then give it back to community?
>>
> You did not mention which kernel release was of interest, so I'll assume
> 3.14. This patch is the right starting point for 3.14:
>
> http://download.gna.org/adeos/patches/v3.x/powerpc/ipipe-core-3.14.17-powerpc-4.patch
>
> Then add the few commits that piled up in the I-pipe git tree since tag
> "ipipe-core-3.14.17-powerpc-4", which the patch mentioned above
> corresponds to: http://git.xenomai.org/ipipe.git/log/?h=ipipe-3.14
> Or wait until drop -5 appears in the download area, they will be included.
>
> Then have a look at the PIC code for making it aware of the interrupt
> pipeline, this beast likely sports a MPIC (just a guess), in which case
> the work to support the "generic" MPIC is done already. Having a look at
> the error interrupt handling for freescale's PIC chips in sysdev/ may be
> a good idea too.
>
> Another interesting part is in head_fsl_booke.S, in case this platform
> has additional exception vectors which might need to be pipelined.
>
> There will be other issues, but this is a starting point.
>

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