[U-Boot] [PATCH] mpc83xx: New board support SIMPC8313

Scott Wood scottwood at freescale.com
Thu Nov 13 19:45:33 CET 2008


Ron Madrid wrote:
>> Use raw accessors and make sure that explicit barriers are used where 
>> needed.
> 
> Is there somewhere that I can find information regarding when and where are the appropriate places are to use barriers?

Basically, you need a barrier any time ordering matters.  If access A 
needs to happen before access B, put a sync between them.

-Scott


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