[Xenomai] Current state of Freescale LS1021A Xenomai support

[Xenomai] Current state of Freescale LS1021A Xenomai support

[Bukuli Norbert]

Hello, Everyone!

I have a few questions about the current state of Freescale LS1021A
SoC and TWR-LS1021A evaluation board support.

I saw on the website, that the `QorIQ LS1: LS1021' SoC is supported,
but I could not figure out, what line of Xenomai supports it. The
stable one (2.6) or the upcoming release (3)?

I prefer the dual-kernel architecture, because of our application
strict realtime needs, so I need a Xenomai supported version.

The linux kernel found in Freescale BSP is derived from v3.12.37,
which is currently not supported by Xenomai. On the other hand,
xenomai supported linux kernel versions (3.8.13, 3.10.32, 3.14.17)
don't have LS1021 support.

Newer vanilla kernels support LS1021A, but there are no i-pipe patches
for those versions.

Any documentation, git trees, and corresponding information would
be highly appreciated.

Thank you in advance!

--
Best regards
Norbert Bukuli
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Re: [Xenomai] Current state of Freescale LS1021A Xenomai support

[Philippe Gerum]

On 08/31/2015 01:10 PM, Bukuli Norbert wrote:
> Hello, Everyone!
> 
> I have a few questions about the current state of Freescale LS1021A
> SoC and TWR-LS1021A evaluation board support.
> 
> I saw on the website, that the `QorIQ LS1: LS1021' SoC is supported,
> but I could not figure out, what line of Xenomai supports it. The
> stable one (2.6) or the upcoming release (3)?
> 
> I prefer the dual-kernel architecture, because of our application
> strict realtime needs, so I need a Xenomai supported version.
> 
> The linux kernel found in Freescale BSP is derived from v3.12.37,
> which is currently not supported by Xenomai. On the other hand,
> xenomai supported linux kernel versions (3.8.13, 3.10.32, 3.14.17)
> don't have LS1021 support.
> 
> Newer vanilla kernels support LS1021A, but there are no i-pipe patches
> for those versions.
> 
> Any documentation, git trees, and corresponding information would
> be highly appreciated.

The port was done over a custom 3.14.44 kernel targeting the ls1. You
may need to port the I-pipe over 3.19+, or wait for the customer to
release these bits.

-- 
Philippe.

Re: [Xenomai] Current state of Freescale LS1021A Xenomai support

[Philippe Gerum]

On 08/31/2015 02:39 PM, Philippe Gerum wrote:
> On 08/31/2015 01:10 PM, Bukuli Norbert wrote:
>> Hello, Everyone!
>>
>> I have a few questions about the current state of Freescale LS1021A
>> SoC and TWR-LS1021A evaluation board support.
>>
>> I saw on the website, that the `QorIQ LS1: LS1021' SoC is supported,
>> but I could not figure out, what line of Xenomai supports it. The
>> stable one (2.6) or the upcoming release (3)?
>>
>> I prefer the dual-kernel architecture, because of our application
>> strict realtime needs, so I need a Xenomai supported version.
>>
>> The linux kernel found in Freescale BSP is derived from v3.12.37,
>> which is currently not supported by Xenomai. On the other hand,
>> xenomai supported linux kernel versions (3.8.13, 3.10.32, 3.14.17)
>> don't have LS1021 support.
>>
>> Newer vanilla kernels support LS1021A, but there are no i-pipe patches
>> for those versions.
>>
>> Any documentation, git trees, and corresponding information would
>> be highly appreciated.
> 
> The port was done over a custom 3.14.44 kernel targeting the ls1. You
> may need to port the I-pipe over 3.19+, or wait for the customer to
> release these bits.
> 

Alternatively you could forward port ipipe-3.10 to 3.12-fsl.

-- 
Philippe.

Re: [Xenomai] Current state of Freescale LS1021A Xenomai support

[Bukuli Norbert]

On Mon, Aug 31, 2015 at 02:45:38PM +0200, Philippe Gerum wrote:
> On 08/31/2015 02:39 PM, Philippe Gerum wrote:
> > On 08/31/2015 01:10 PM, Bukuli Norbert wrote:
> >> Hello, Everyone!
> >>
> >> I have a few questions about the current state of Freescale LS1021A
> >> SoC and TWR-LS1021A evaluation board support.
> >>
> >> I saw on the website, that the `QorIQ LS1: LS1021' SoC is supported,
> >> but I could not figure out, what line of Xenomai supports it. The
> >> stable one (2.6) or the upcoming release (3)?
> >>
> >> I prefer the dual-kernel architecture, because of our application
> >> strict realtime needs, so I need a Xenomai supported version.
> >>
> >> The linux kernel found in Freescale BSP is derived from v3.12.37,
> >> which is currently not supported by Xenomai. On the other hand,
> >> xenomai supported linux kernel versions (3.8.13, 3.10.32, 3.14.17)
> >> don't have LS1021 support.
> >>
> >> Newer vanilla kernels support LS1021A, but there are no i-pipe patches
> >> for those versions.
> >>
> >> Any documentation, git trees, and corresponding information would
> >> be highly appreciated.
> > 
> > The port was done over a custom 3.14.44 kernel targeting the ls1. You
> > may need to port the I-pipe over 3.19+, or wait for the customer to
> > release these bits.
> > 
> 
> Alternatively you could forward port ipipe-3.10 to 3.12-fsl.
> 
> -- 
> Philippe.

Thanks for the quick answer I will check both solutions.

-- 
Best regards
Norbert Bukuli
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