[U-Boot] [PATCH] arm: pxa: config option for PXA270 turbo mode

Marek Vasut
2013-05-21T11:22:07Z

Dear Sergey Yanovich,

> Dear Marek Vasut,
>
> On Tue, 2013-05-21 at 12:55 +0200, Marek Vasut wrote:
> > > Difference -- approx. 2.5 times faster system.
> > >
> > > Who uses it -- ex. LP-8x4x board, support for which I am trying to
> > > merge in a separate patch. Any PXA27X board can use it.
> >
> > Why don't you enable it globally then ?
>
> It increases power consumption proportionally. Not everyone would agree
> with this. Especially those with portable devices may rightfully object.
>
> It is up to you to enable it globally. I could alter the patch to switch
> turbo mode on by default and provide an option to disable it.

Actually, I wonder if Linux's cpufreq still does depend on bootloader speed
settings. Especially the turbo bit. Can you please check that? It'd be
interesting to know ...

I'd say enable it by default ... I probably have all the PXA devices supported
in U-Boot and I'm quite sure none of them will mind ;-)

Best regards,
Marek Vasut