AnsweredAssumed Answered

Not clear if mx53 linux DVFS enabled or not

Question asked by Bruno De Paoli on Jun 10, 2015
Latest reply on Jun 15, 2015 by igorpadykov

I'm investigating DVFS on an IMX53 based platform running Linux. We are using the Freescale Android 10.2 BSP


Both frequency and voltage scaling appear to be enabled - as shown below:


cat /sys/devices/platform/mxc_dvfs_core.0/enable

DVFS is enabled


However when I look at the min and max frequencies I see the following

cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq


cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq



This suggests that only one frequency is used and so no scaling is taking place.

Is this correct? If so how can I change this?