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cache makes life much simpler than write-back one.

So, currently I have two possible paths:

1) Remove cache locking for 4kc (e.g. put #ifdef CONFIG_PURPLE) or 
maybe add CONFIG_WRITE_THROUGH_CACHE and use it.

2) Call dcache_disable instead.

Option 1) seems more clean, although potentially more dangerous. 
Option 2) looks safe and keeps current *behavior* while making it 
explicit.

Wolfgang, what do you think is the best way to go? Or maybe there is 
an option 3) I haven't thought of.

--
Eugene