[U-Boot] [v3] command/cache: Add flush command

[Wolfgang Denk]

Dear York Sun,

In message <515F5812.8030008 at freescale.com> you wrote:
>
> > adding new:
> > 
> > 	dcache flush			=> flush all
> > 	dcache flush <addr> <size>	=> flush range
> > 
> > I think this makes more sense.  Comments?
> 
> It would if the command only deals with dcache. This command flushes
> dcache _and_ invalidates icache.

Then the name "flush" is even more a bad choice.

> If "flush_cache" is acceptable, we can use v2. If not, please suggest
> one. My candidates are "flushcache", "cacheflush".

Can we not split this into:

	dcache flush
	icache invalidate

?  This would make clear what's happening.

Best regards,

Wolfgang Denk

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