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setting DSP clock speed for DM3730 EVM

Jonathan Hunter
Prodigy 170 points

Hello,

 

I am just looking for some information about determining and setting the DSP clock speed. I found some information about changing the .gel file, but I need to know for the application space without CCS.  I understand this to be done in uboot.

I know of these commands once the board is booted, but I think this is only for ARM.

List current frequency:

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

 

Check list of available frequencies:

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

 

Set frequency:

echo xxx > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed

 

Thanks, Jonathan