ARM: mx28: cpufreq-cpu0 support?
From: festevam@gmail.com (Fabio Estevam)
Date: 2014-09-24 21:47:46
From: festevam@gmail.com (Fabio Estevam)
Date: 2014-09-24 21:47:46
On Wed, Sep 24, 2014 at 5:46 PM, Stefan Wahren [off-list ref] 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.