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Arun_Prabakatr's avatar
Arun_Prabakatr
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3 months ago

To evaluate and monitor CPU frequency behavior in the Kernel OS

We need to verify CPU frequency behaviour straight from the Linux kernel because we are currently working with a customised Agilex 5 System-on-Module (SOM). Ensuring appropriate frequency scaling and...
operating system
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Arun_Prabakatr's avatar
Arun_Prabakatr
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3 months ago

Hi AnnaK_Altera

Thanks for the guidance. We've enabled the relevant CONFIG_CPU_FREQ options in our arm64 kernel config and included #include "socfpga_agilex5.dtsi" in our device tree, which contains all the necessary CPU-related nodes including TSC and others.

However, after reboot, the /sys/devices/system/cpu/cpu0/cpufreq directory is still not appearing. We've also updated our kernel log file to help identify what might be missing. Could you please take a look and let us know if there's anything we've overlooked?

Thanks again for your support.

BoonBengT_Altera's avatar
BoonBengT_Altera
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1 month ago

Dear Customer,

As clarification has been provided and we do not hear any further follow up. Hence if there are no further inquiries during this period, I will step back and allow the community to assist with any future follow-up questions.

Thank you for engaging with us!

Best regards,
Altera Technical Support