AR# 51190

Zynq-7000 SoC OS - How Can I Determine CPU Clock Frequency in Linux?

Is there a way to find the rate of the ARM CPU clock frequency when the Linux operating system is running?

The maximum clock rates for the ARM Cortex-A9 APU can be found in the Zynq-7000 SoC datasheets:

To find the clock frequency at which the processor is running at a given time, use the following command in Linux:

cat /proc/cpuinfo

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Answer Number	Answer Title	Version Found	Version Resolved
52599	Zynq-7000 SoC - Operating Systems Development	N/A	N/A