Checking AM3352 Processor Frequency

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Other Parts Discussed in Thread: AM3352

Hi,

We are changing the AM3352 Processor frequency to 1 G Hz. I would like to know what are the ways to verify if the frequency change actually happened or not?

Best Regards,

GSR

over 10 years ago

0 Yordan Kovachev over 10 years ago

TI__Guru**** 161600 points

Hi,

You can check the apis in /sys/devices/system/cpu/cpu0/cpufreq/ to monitor & modify cpu frequency.

There are some kernel statistics in /sys/devices/system/cpu/cpu0/cpufreq/stats, like time in state, transition table, total transitions.

Also check the following guides, to get familiar with linux power management:
processors.wiki.ti.com/.../AM335x_Linux_Power_Management_User_Guide
processors.wiki.ti.com/.../AM335x_Power_Management_Standby_User%27s_Guide

Hope this helps.

Best Regards,
Yordan

Processors

Processors forum

Checking AM3352 Processor Frequency