PROCESSOR-SDK-J721E: Checking clock frequency

Tool/software:

Hi!

I want to check the clock frequency of the Cortex-A72 on the J721E SoC. The obvious lscpu or cat/proc/cpucinfo did not return any MHz value.

According to the TRM, PLL8 supplies the clock for the CPU. The next obvious step would be to check the value of the corresponding register. In theory WKUP_CTRL_MMR0 register contains the information I need.

My problem is, I cannot find any register address for this. Neither in data sheet or TRM. I'm not sure how to get this info.

I'm using the J721EXSOMXEVM module.

Thanks,

Marton