[PATCH 6/7] arm/imx6q: add cpufreq support
Sascha Hauer
s.hauer at pengutronix.de
Mon Dec 12 09:28:21 EST 2011
On Mon, Dec 12, 2011 at 09:46:43PM +0800, Richard Zhao wrote:
> > > +{
> > > + if (strncmp(p, "1000", 4) == 0)
> > > + arm_max_freq = 1000;
> > > + else if (strncmp(p, "800", 3) == 0)
> > > + arm_max_freq = 800;
> > > + return 0;
> > > +}
> > > +
> > > +early_param("arm_freq", set_arm_max_freq);
> >
> > Do we need this? I suppose this should be passed by the device tree if
> > necessary.
> Yes, we do. Some boards don't support 1G. Would you let it be a temp solution? Or I'll
> only support 1G boards.
> For long time, maybe we put all operating points to dts or opp. Which one will
> you prefer? It needs much other work to do.
I see several boards already having a clock-frequency property in their
cpu node, so you could use this as maximum frequency.
Sascha
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