Hi,
Thank you for your interest in NXP Semiconductor products,
What would the Power-On test look for? There are not BITs for the power section, you'd need to code a test for the desired functionality to be tested.
There are multiple BISTs for the specific module IPs within the SOC, that you may want to refer to the reference manual for further research.
Finally, if the power management is the concern within the test, you can use these unit tests in Linux working in the reference board already.
• /unit_tests/Power_Management/suspend_random_auto.sh
• /unit_tests/Power_Management/suspend_quick_auto.sh
https://www.nxp.com/docs/en/reference-manual/IMX_REFERENCE_MANUAL.pdf
Regards