LinuxPPC for MPC555?

LinuxPPC for MPC555?

[David de Andrés Martínez]

I know it's a bit strange, but we are looking for a LinuxPPC port for
the Motorola MPC555.

Does anyone know where can we find this port, or if it can be easily
done?

Thanks.
David de Andrés.

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Re: LinuxPPC for MPC555?

[Wolfgang Denk]

In message <3C417B00.A0DCAE7@disca.upv.es> you wrote:
>
> I know it's a bit strange, but we are looking for a LinuxPPC port for
> the Motorola MPC555.
>
> Does anyone know where can we find this port, or if it can be easily
> done?

The MPC555 has no MMU, so LinuxPPC cannot be ported to it.

You might check out uClinux which  works  on  MMU-less  systems,  but
AFAIK there has been only some talk of a uClinux port for the MPC555,
but  I  haven't  seen  any  indication  that anybody actually started
working on it.

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
A supercomputer is a machine that runs an endless loop in 2 seconds.

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Re: LinuxPPC for MPC555?

[Frederic Soulier]

The Motorola MPC-555 is MMU-less. Classical Linux ports do not support this
kind of microcontrollers.
If your OS requirements are about Linux facilities, you may consider the
uCLinux project : http://www.uclinux.{org, com} but I have never heard about
a successful uCLinux MPC-555 port.
If your requirements are less restrictive and simply about an open source
OS, you may consider other projects like RTEMS (http://www.rtems.com) or
eCos (http://sources.redhat.com/ecos). I know some guys had sucessfuly used
them with MPC-555 so you have to browse these projects development
mailing-lists.

> I know it's a bit strange, but we are looking for a LinuxPPC port for
> the Motorola MPC555.
>
> Does anyone know where can we find this port, or if it can be easily
> done?

Frederic


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