Re: [ECOS] a few questions on eCos on PMC-Sierra MIPS

[Nick Garnett <nickg at ecoscentric dot com>]

Adam Kiepul <Adam_Kiepul@pmc-sierra.com> writes:

> Hi everyone,
> 
> I have just a few quick questions on eCos and I hope I can have them
> answered promptly when I post them on this list.
> The questions are:
> 
> 1. What would be the estimated effort of porting the RM7000 eCos
> code base to RM5231? I assume it would be pretty trivial since the
> only difference would be the interrupt model.

This has actually already been done. Warren Jasper
(wjasper@tx.ncsu.edu) did it a couple of years ago, but it never got
included into the main source tree -- probably due to a lack of
assignment. That was for version 1.3.1, so it would probably need a
little work to bring it up to date. I have a copy of Warren's HAL
here.

> 
> 2. Could you name any customers/designs using eCos on RM7000?

Apart from the evaluation board in the source tree I don't know of any
others. Maybe someone else on the mailing list does.

> 
> 3. What Endian Mode does the current RM7000 eCos port use?

It's little endian.

> 
> 4. How can I obtain the detailed information on the eCos support by
> Red Hat?

Red Hat does not do eCos support any more and have laid off all their
eCos engineers. The original developers of eCos are now working as
eCosCentric, see the link in my signature.


-- 
Nick Garnett - eCos Kernel Architect
http://www.eCosCentric.com/


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