[U-Boot] [PATCH v2 2/9] arc: add cpu files

[Wolfgang Denk]

Dear Mischa,

In message <E6BF041E97966E4DB955F0DF883AD2D685F40060 at de02wembxa.internal.synopsys.com> you wrote:
> > > +void icache_enable(void)
> > > +{
> > > +	write_aux_reg(ARC_REG_IC_CTRL, read_aux_reg(ARC_REG_IC_CTRL) &
> > > +		      ~IC_CTRL_CACHE_DISABLE);
> > > +}
> > 
> > 
> > I missed this in patch # 1 - why do you need these read_aux_reg() /
> > write_aux_reg() macros?  Why cannot you use standard I/O accessors instead?
> 
> Auxiliary registers are not I/O registers. The ARC architecture has general purpose registers (like any processor core has), and another set of registers, the auxiliary registers. These require a specific assembly instruction to be accessed.

Thanks for the explanation.  And sorry for my ignorance - I don't know
ARC at all...

Best regards,

Wolfgang Denk

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DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
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: 1.  What is the possibility of this being added in the future?
In the near future, the probability is close to zero. In the  distant
future, I'll be dead, and posterity can do whatever they like... :-)
                                                              - lwall