Re: MPC860 reorder and invalidate dcache

Joakim Tjernlund wrote:

... The other mapping is used for flash commands and to write data to flash.
Each time I read I do a invalidate_dcache_range() to pick up updates made from
the uncached mapping.

Why don't you do a single invalidate after the write to cover the region
you just updated?

I was just hoping that the 'sync' instruction was an "accident", but now I know
better.

Those of us that have programmed PowerPC all of these years seldom include
a 'sync' instruction by accident.  We are more likely to not use them and
then discover later they are necessary :-)



	-- Dan


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