[Xenomai-core] IPIPE for ARM9 i.MX and AT91RM9200 ?

[Xenomai-core] IPIPE for ARM9 i.MX and AT91RM9200 ?

[Steven Scholz]

Hi all,

are there IPIPE Patches for recent kernels (2.6.19) available for
Freescale's i.MX1/i.MXL and Atmel's AT91RM9200 cpus available.

Thanks a million,

Steven

Re: [Xenomai-core] IPIPE for ARM9 i.MX and AT91RM9200 ?

[Gilles Chanteperdrix]

Steven Scholz wrote:
> Hi all,
> 
> are there IPIPE Patches for recent kernels (2.6.19) available for
> Freescale's i.MX1/i.MXL and Atmel's AT91RM9200 cpus available.
> 
> Thanks a million,

Hi,

The IPIPE patches for ARM exist for linux 2.6.14 and 2.6.15. There is an
i.MX21 port for 2.6.14 and an AT91 port for 2.6.15. I do not know how
much i.MX21 is different from i.MX1.

Porting the IPIPE patch for ARM to linux 2.6.19 has a high priority on
the todo-list, but still needs to be done.

-- 
                                                 Gilles Chanteperdrix

Re: [Xenomai-core] IPIPE for ARM9 i.MX and AT91RM9200 ?

[Steven Scholz]

Gilles,

>> are there IPIPE Patches for recent kernels (2.6.19) available for
>> Freescale's i.MX1/i.MXL and Atmel's AT91RM9200 cpus available.
> 
> The IPIPE patches for ARM exist for linux 2.6.14 and 2.6.15. There is an
> i.MX21 port for 2.6.14 and an AT91 port for 2.6.15...

Thanks very much.

Where can I find the AT91 patches? The i.MX stuff seems to be in xenomai-2.3.0.

--
Steven

Re: [Xenomai-core] IPIPE for ARM9 i.MX and AT91RM9200 ?

[Gilles Chanteperdrix]

Steven Scholz wrote:
> Gilles,
> 
> 
>>>are there IPIPE Patches for recent kernels (2.6.19) available for
>>>Freescale's i.MX1/i.MXL and Atmel's AT91RM9200 cpus available.
>>
>>The IPIPE patches for ARM exist for linux 2.6.14 and 2.6.15. There is an
>>i.MX21 port for 2.6.14 and an AT91 port for 2.6.15...
> 
> 
> Thanks very much.
> 
> Where can I find the AT91 patches? The i.MX stuff seems to be in xenomai-2.3.0.

Yes, the AT91 port should be in the next release of the 2.3 branch.

In the meantime, you can find them in Xenomai svn repository, either
under trunk/ksrc/arc/arm/patches/at91 or
branches/v2.3.x/ksrc/arch/arm/patches/at91.

The instructions to access Xenomai svn repository are available here:
https://gna.org/svn/?group=xenomai

-- 
                                                 Gilles Chanteperdrix

Re: [Xenomai-core] IPIPE for ARM9 i.MX and AT91RM9200 ?

[Steven Scholz]

Gilles,

>>>> are there IPIPE Patches for recent kernels (2.6.19) available for
>>>> Freescale's i.MX1/i.MXL and Atmel's AT91RM9200 cpus available.
>>> The IPIPE patches for ARM exist for linux 2.6.14 and 2.6.15. There is an
>>> i.MX21 port for 2.6.14 and an AT91 port for 2.6.15...
>>
>> Thanks very much.
>>
>> Where can I find the AT91 patches? The i.MX stuff seems to be in xenomai-2.3.0.
> 
> Yes, the AT91 port should be in the next release of the 2.3 branch.
> 
> In the meantime, you can find them in Xenomai svn repository, either
> under trunk/ksrc/arc/arm/patches/at91 or
> branches/v2.3.x/ksrc/arch/arm/patches/at91.

Ok. Thanks.

IIUC then 2.6.15 was before the introduction of the generic irq layer.

So would these make it easier to port to a newer kernel? Or harder?

Steven

Re: [Xenomai-core] IPIPE for ARM9 i.MX and AT91RM9200 ?

[Gilles Chanteperdrix]

Steven Scholz wrote:
> Ok. Thanks.
> 
> IIUC then 2.6.15 was before the introduction of the generic irq layer.
> 
> So would these make it easier to port to a newer kernel? Or harder?
> 
> Steven

I have not delved into the details of the 2.6.19 yet, but I would tend
to think that the genirq layer will only improve the genericity of the
I-pipe code on the long run.

Since Philippe has done the x86 port of Adeos on 2.6.19, he will
probably be able to comment more on that.

-- 
                                                 Gilles Chanteperdrix

Re: [Xenomai-core] IPIPE for ARM9 i.MX and AT91RM9200 ?

[Philippe Gerum]

On Mon, 2007-01-15 at 18:04 +0100, Gilles Chanteperdrix wrote:
> Steven Scholz wrote:
> > Ok. Thanks.
> > 
> > IIUC then 2.6.15 was before the introduction of the generic irq layer.
> > 
> > So would these make it easier to port to a newer kernel? Or harder?
> > 
> > Steven
> 
> I have not delved into the details of the 2.6.19 yet, but I would tend
> to think that the genirq layer will only improve the genericity of the
> I-pipe code on the long run.
> 
> Since Philippe has done the x86 port of Adeos on 2.6.19, he will
> probably be able to comment more on that.
> 

Genirq definitely makes Adeos ports and maintenance easier. A mid-term
goal is to rebase all Adeos ports over 2.6.19 and later.

-- 
Philippe.

Re: [Xenomai-core] IPIPE for ARM9 i.MX and AT91RM9200 ?

[Steven Scholz]

Philippe,

>> Since Philippe has done the x86 port of Adeos on 2.6.19, he will
>> probably be able to comment more on that.
>>
> 
> Genirq definitely makes Adeos ports and maintenance easier. A mid-term
> goal is to rebase all Adeos ports over 2.6.19 and later.

Ok. Are you working on ipipe for ARM based on 2.6.19?

Steven

Re: [Xenomai-core] IPIPE for ARM9 i.MX and AT91RM9200 ?

[Gilles Chanteperdrix]

Steven Scholz wrote:
> Philippe,
> 
> 
>>>Since Philippe has done the x86 port of Adeos on 2.6.19, he will
>>>probably be able to comment more on that.
>>>
>>
>>Genirq definitely makes Adeos ports and maintenance easier. A mid-term
>>goal is to rebase all Adeos ports over 2.6.19 and later.
> 
> 
> Ok. Are you working on ipipe for ARM based on 2.6.19?

I plan to have a look at it soon.

-- 
                                                 Gilles Chanteperdrix