ppc-sam440: Use Write-Through caching for main memory.
Although this will slow down the system, it also means that
AmigaOS drivers/programs do *not* need to special case usage of
CacheClearE() for AROS Sam4xx PowerPC systems.
With WriteThrough enabled for main memory, all CACF_InvalidateD
are safe, since any 'surrounding' data will have already been
written to main memory.
Signed-off-by: Jason S. McMullan <jason.mcmullan@gmail.com>
git-svn-id: https://svn.aros.org/svn/aros/trunk/AROS@46225 fb15a70f-31f2-0310-bbcc-cdcc74a49acc