Dear NXP,
OS: Yocto
Platform: IMX8MNano EVK
I got the following error when opening link.
"Root filesystem encryption using DM-Crypt"
You can refer i.MX Encrypted Storage Using CAAM Secure Keys Application Note:
https://www.nxp.com/docs/en/application-note/AN12714.pdf
Thank you b36401 for the reply