ppc platform for AMCC-440EPx - ELDK to the rescue

[Dave Cogley]

Wolfgang,

Could you provide an explanation between the two architectures in the ELDK?


I am also using a Sequoia "spin off" and am trying to determine why I would
want to use the "powerpc" architecture vs. the "ppc" architecture.  

Thanks,
Dave

-----Original Message-----
From: linuxppc-embedded-bounces+dcogley=uslinc.com at ozlabs.org
[mailto:linuxppc-embedded-bounces+dcogley=uslinc.com at ozlabs.org] On Behalf
Of Wolfgang Denk
Sent: Wednesday, March 26, 2008 3:23 PM
To: Steve Heflin
Cc: linuxppc-embedded at ozlabs.org
Subject: Re: ppc platform for AMCC-440EPx - ELDK to the rescue

In message <20080326130837.762DBDE2FB at ozlabs.org> you wrote:
> I finally resolved my nightmare of getting linux-2.6.24/5... to work 
> on my AMCC-440Epx - Sequoia spinoff board. Following a clue I derived 
> from a reply from Wolfgang Denx, I went to the DENX Engineering site 
> where I discoved and downloaded the ELDK for the ppc_4xxFP. the ELDK 
> uses the ppc platform instead of the powerpc platform.  FINALLY the 

This is not exactly correct. Actually it supports both.

> Also, I fail to see what the DTS virtualization layer of the hardware 
> buys us. When debugging, it's so much harder to use than the ppc 
> platform's straight forward and standard methodologies.  I can't 
> understand to goal to eliminate the ppc platform, especially given 
> the fact that DENX's ELDK is still using it with Linux 2.6.24.2 !!

You miss the fact that the ELDK has full  support  for  arch/powerpc,
and  that  some  board configurations in our kernel (for example, all
MPC5200 based ones)  are  available  in  arch/powerpc  configurations
only.

But then - what's the difference? All it takes is a  redefinition  of
the ARCH envrionment variable in your shell...

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 at denx.de
I've got a bad feeling about this.
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