The CPU POST test code (run from cpu_post_exec_31()) doesn't follow the
ABI carefully, at least the CR3, CR4, and CR5 fields of CR are clobbered
by it. The gcc-4.2 with its more aggressive optimization exposes this fact.
This patch just saves the CR value before running the test code, so allowing
it to do anything it wants with CR.
Signed-off-by: Dmitry Rakhchev <rda@emcraft.com>
Acked-by: Yuri Tikhonov <yur@emcraft.com>
--
Now with caches enabled (i- and d-cache) on 44x, we need a chance to
disable the cache for the CPU POST tests, since these tests consist
of self modifying code. This is done via the new change_tlb() function.
Signed-off-by: Stefan Roese <sr@denx.de>
Yuri Tikhonov
Stefan Roese
Sergei Poselenov
Igor Lisitsin
Wolfgang Denk