[U-Boot] [RFC] command/cache: Add flush_cache command

[Wolfgang Denk]

Dear Scott Wood,

In message <1363815061.25034.18 at snotra> you wrote:
>
> > Hadn't seen that command before, where is it?
> 
> common/cmd_mp.c

This depends on CONFIG_MP, which is undocumented.  Can you please add
/ have added documentation for this config option?  Thanks.


Best regards,

Wolfgang Denk

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