Jocke,
ok - works for me, i.e. no quad-nop needed anymore.
Does both your boards work now?
MPC8343 @ 400MHz never had any issues - it's still working with your patch applied.
MPC8377 works fine up to 533MHz ... 600MHz+ still hangs.
Looks like there are more sync missing.
I am guessing it takes a while for the stw r4, LBLAWAR1(r3) to hit the HW so one must wait for it, not sure what is best though, sync or isync?
If it is a timing issue why should have the nops influenced this ? I still wonder if this is the real problem and whether we might need more (i)syncs elsewhere ...
You can try replacing the isync with 4 nops. That works for me. moving the 4 nops after the blr doesn't work.
I think it worked earlier by chance but the removal of the flags changed timing, probably a cache line crossing at the wrong place.
"works by chance" is probably not what we want.
Anyway - good catch. Thanks again.
Cheers, André
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