ARM: mx28: cpufreq-cpu0 support?
Fabio Estevam
festevam at gmail.com
Wed Sep 24 14:47:46 PDT 2014
On Wed, Sep 24, 2014 at 5:46 PM, Stefan Wahren <info at lategoodbye.de> wrote:
> thanks, registering cpufreq-cpu0 and adding missing properties reg & clocks
> did the trick.
>
> Now the sys interface of cpufreq is available and the mxs-regulator seems to
> handle frequency change. But the frequency selection do not work as
> expected. If i set cpu frequency to 454736, 392727 or 261818 kHz, the
Why 454736 instead of 454MHz? Same for the other values.
> cpufreq driver change it silently to 240000 kHz.
24MHz is the osc clock. It seems you did not turn on the PLL0.
Check the POWER bit of HW_CLKCTRL_PLL0CTRL0 register.
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