RFC: Kill the gen405 BSP?

Ralf Corsepius ralf.corsepius at rtems.org
Sat Dec 15 03:18:54 UTC 2007

On Fri, 2007-12-14 at 12:32 -0600, Joel Sherrill wrote:
> Thomas Doerfler wrote:
> > Hello,
> >
> > some years we were supporting (more or less) two different exception
> > schemes for PowerPC. An hour ago I decided to kill the HEAS403 BSP,
> > which was based on a PPC403GA/GCX CPU, since the board is no longer
> > available and I am not aware of anybody who uses this BSP.
> >
> > The next candidate to kill would be the
> >
> > gen405
> >
> > BSP. It is the last one supporting the old exception handling code, and
> > removing it will simplify the PPC support.
> >
> > Remeber, that the PPC405 CPU is still activily supported in the "virtex"
> > BSP, so 405 support will not be gone, when the gen405 is removed.
> >
> >   
> Oh...  I didn't realize the virtex BSP was effectively a replacement
> for gen405.
> > So, when nobody complaints 'til the end of the year, I will remove the
> > gen405 in January 2008.
> >
> > Speak up NOW or stay silent :-)
> >   
> I trust you.  Kill it.  Same comment on Wiki page update.
> After this is done, Ralf.. how hard will it be to scrub
> the tree and tools of any knowledge of old vs new exceptions?
> After that can we all agree to never again use the phrases
> old and new exceptions?
An initial cleanup is pretty straight forward and probably doable within
a couple of hours.

However, I am not sure about which opportunities for further cleaning
up/simplifying the powerpc BSPs removing old/new-exception processing
would/could open and how much effort would arise from this.


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