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AM3352: Modify CPU Frequency on RT-SDK

Part Number: AM3352


Hi,

Here is a question about how to modify CPU frequency and I realize I can do it through below comand.

$ echo 800000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed

But I found I can not find the directory above mentioned.

root@am335x-evm:/sys/devices/system/cpu/cpu0# ls
crash_notes  crash_notes_size  of_node  power  subsystem  topology  uevent

As you can see, there is no folder named cpufreq, so I don't know how to modify the frequency number.

Could you help me fix this? Thanks.

SDK: ti-processor-sdk-linux-rt-am335x-evm-08.02.00.24

Hardware : TI AM335x EVM-SK