Support for PowerPC e200 cores

Ralf Corsepius ralf.corsepius at rtems.org
Fri Feb 15 15:20:06 UTC 2008


On Fri, 2008-02-15 at 08:48 -0600, Joel Sherrill wrote:
> Sebastian Huber wrote:
> > Hi,
> > we want to develop a BSP for a MPC5566 evaluation board. It uses a e200
> > processor core. My first job is to get the basic tools ready. I am quite
> > new in
> > this business, so please have mercy with me if I ask to many clumsy
> > questions ;-)
> >

> Use the RPMs.  I repeat use the RPMs.  There is normally
> no reason to generate a custom compiler.  And this case
> is certainly NOT an exception that rule.  The current
> powerpc-rtems4.9-gcc includes this in its specs:
> 
>  %{mcpu=8540: -me500}
> 
> So the tools should be OK.

They are not - More precisely, the instruction set is in GCC, but the
multilib support is missing. 

Finally, trying to add it (it's one multilib variant) reveals bugs in
GCC -- If it was that easy, I would have posted a patch in response ;)

Ralf







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