SA-RTLinux for ppc?

SA-RTLinux for ppc?

[sumedh tirodkar]

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does there exist a Standalone RTLinux for powerpc?

Regards,
Sumedh

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RE: SA-RTLinux for ppc?

[Fillod Stephane]

sumedh tirodkar wrote:
> does there exist a Standalone RTLinux for powerpc?
>

I don't know, but there's a very good hard real-time extension called
Xenomai=20
for powerpc (and many other arch's). http://www.xenomai.org

Best Regards
--=20
Stephane

Re: SA-RTLinux for ppc?

[sumedh tirodkar]

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actually i m tryin to find a linux like port for powerpc.
lookin for a kernel which has very less functionalities.

On Fri, Oct 3, 2008 at 9:01 PM, Fillod Stephane <stephane.fillod@thomson.net
> wrote:

> sumedh tirodkar wrote:
> > does there exist a Standalone RTLinux for powerpc?
> >
>
> I don't know, but there's a very good hard real-time extension called
> Xenomai
> for powerpc (and many other arch's). http://www.xenomai.org
>
> Best Regards
> --
> Stephane
>

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RE: SA-RTLinux for ppc?

[Nicholas Mc Guire]

> sumedh tirodkar wrote:
> > does there exist a Standalone RTLinux for powerpc?
> >
>
> I don't know, but there's a very good hard real-time extension called
> Xenomai
> for powerpc (and many other arch's). http://www.xenomai.org
>
RTLinux/GPL (www.rtlinux-gpl.org) currently does not support PPC though
we do have the first ports for PPC 440 and 405 of XtratuM in testing it
will be some time before RTLinux is fully available in a stable release.
So atleast for now xenomai is your best bet for a free-software real-time
extension. If you are interested in testing early releases let me know
though.

thx!
hofrat

Re: SA-RTLinux for ppc?

[Wolfgang Denk]

Dear "sumedh tirodkar",

In message <d2b9ccd90810030835m534f7619xe0be08078bad0019@mail.gmail.com> you wrote:
>
> actually i m tryin to find a linux like port for powerpc.
> lookin for a kernel which has very less functionalities.

That's what Fillod recommended to you:

> On Fri, Oct 3, 2008 at 9:01 PM, Fillod Stephane <stephane.fillod@thomson.net
> >
> > I don't know, but there's a very good hard real-time extension called
> > Xenomai
> > for powerpc (and many other arch's). http://www.xenomai.org

If you need support for hard real-time behaviour in Linux, then use
Xenomai.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Only in our dreams we are free.  The rest of the time we need  wages.
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Re: SA-RTLinux for ppc?

[Nicholas Mc Guire]

> actually i m tryin to find a linux like port for powerpc.
> lookin for a kernel which has very less functionalities.
>

Well then XM2 might be of interest for you - this is really very close to
what SaRTL was doing just based on the XtratuM hypervisor and thus
providing seperated address spaces for the real-time domains (that is they
run in user-mode) It boots stand-alone but can run Linux as a guest - the
development is still at an early stage though, if you are interested in
more details let me know - this is a bit off topic for here I guess. A
number of presentations on both XtratuM and XM2 are scheduled for the 10th
Real Time Linux Workshop in Mexico (Oct 29-Nov 1 2008) see:

 http://www.realtimelinuxfoundation.org/events/rtlws-2008/rtlws10/

thx!
hofrat

Re: SA-RTLinux for ppc?

[Nicholas Mc Guire]

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On Fri, 3 Oct 2008, sumedh tirodkar wrote:

> does there exist a Standalone RTLinux for powerpc?
>
> Regards,
> Sumedh
>

Re: SA-RTLinux for ppc?

[sumedh tirodkar]

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I would definitely like to try out the early releases. how can u help me
with that?

Regards,
Sumedh

On Fri, Oct 3, 2008 at 11:31 PM, Nicholas Mc Guire <hofrat@hofr.at> wrote:

>
> > sumedh tirodkar wrote:
> > > does there exist a Standalone RTLinux for powerpc?
> > >
> >
> > I don't know, but there's a very good hard real-time extension called
> > Xenomai
> > for powerpc (and many other arch's). http://www.xenomai.org
> >
> RTLinux/GPL (www.rtlinux-gpl.org) currently does not support PPC though
> we do have the first ports for PPC 440 and 405 of XtratuM in testing it
> will be some time before RTLinux is fully available in a stable release.
> So atleast for now xenomai is your best bet for a free-software real-time
> extension. If you are interested in testing early releases let me know
> though.
>
> thx!
> hofrat
>

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Re: SA-RTLinux for ppc?

[Nicholas Mc Guire]

> I would definitely like to try out the early releases. how can u help me
> with that?
>
We are cleaning it up a bit and packing it up as a fresh snapshot - the
first snapshots can be found at:

 ftp://dslab.lzu.edu.cn:/pub/xtratum/xtratum-ppc/snapshots

The patch in the patches directory is agaist 2.6.19.2 from ELDK (not
kernel.org) and was tested on 440EP/GR only.

Dont expect this to be clean though ;)

thx!
hofrat

Re: SA-RTLinux for ppc?

[sumedh tirodkar]

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Can you help me wid one more thing?
I m trying to find out what is the entry point for booting of
linux-powerpc..i.e. what is the file sequence that gets executed after
yaboot gives control to linux kernel?
there are no head.S nd setup.S files in arch/powerpc/boot/ directory...which
are present in arch/i386/boot

Regards,
Sumedh

On Mon, Oct 6, 2008 at 11:11 AM, Nicholas Mc Guire <hofrat@hofr.at> wrote:

>
> > I would definitely like to try out the early releases. how can u help me
> > with that?
> >
> We are cleaning it up a bit and packing it up as a fresh snapshot - the
> first snapshots can be found at:
>
>  ftp://dslab.lzu.edu.cn:/pub/xtratum/xtratum-ppc/snapshots
>
> The patch in the patches directory is agaist 2.6.19.2 from ELDK (not
> kernel.org) and was tested on 440EP/GR only.
>
> Dont expect this to be clean though ;)
>
> thx!
> hofrat
>

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