Geert Uytterhoeven wrote:
On Thu, 31 Jul 2008, Paul Mundt wrote:
On Wed, Jul 30, 2008 at 02:26:04PM +0200, Geert Uytterhoeven wrote:
On Wed, 30 Jul 2008, David Howells wrote:
Arnd Bergmann <arnd@xxxxxxxx> wrote:
I think the more interesting aspect in m68knommu is what happens
when asm-m68k gets moved. Does that work as well?
Can m68knommu be merged into m68k and be made contingent on CONFIG_MMU? This
is what FRV does.
Sure it can ;-)
Actually I did a bit of work to add nommu support to m68k to make it
boot on old MMU-less Amigas, but it dates back to the 2.6.8.1 era...
The bigger issue is in those parts that are done differently by m68k and
m68knommu (esp. head.S).
Who's gonna take the work? :-)
This sort of merging is fairly easy to do incrementally, at least by
someone that has both platforms available. An easy first step would be to
Indeed. I have none of the currently supported m68knommu platforms,
though.
Don't know about Greg and m68k platforms (of course he can use ARAnyM
;-).
I don't have any real m68k (with MMU) hardware ;-)
I do have a v4e ColdFire with MMU, but that is not supported
by mainline m68k code. Maybe a help...
move the m68knommu stuff that are implemented differently over as _nommu
files, similar to how the _32/_64 renames happened, and then set about
converging the two little by little. This is what I've been doing with
sh64->sh integration for example, despite fundamental differences like
having a totally different register layout and instruction set.
IC.
Probably not hugely difficult to merge together. Quite a few of the
m68knommu files came from m68k with only a little change and a lot
of removal. The board/platform stuff is obviously quite different -
very little (if any) commonality.
Just needs someone with time to sit down and do it and clean up
the resulting mess.
Regards
Greg
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Greg Ungerer -- Chief Software Dude EMAIL: gerg@xxxxxxxxxxxx
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