We are looking at enabling JTAG security on the i.MX8QXP and there are two key fuses available: TrustZone KEY (Fuse Row Index 704-707) and OEM Key (Fuse Row Index 722-725).
I've been unable to find documentation regarding the difference between the two keys mentioned above and what J-tag capabilities are associated with each key. If someone would care to explain or point out relevant documentation, that would be great!
In application note AN12631 on how to authenticate a Lauterbach with secure JTAG enabled, a number of cmm scripts are referenced. Where can one obtain these scripts?