OTP on Layerscape

[mrmichaelt86]

Hello.  Is there any sort of serial number or ID marked in the layerscape di?  Apart from Zone-of-Trust HSK, is there any ability to set an identifying serial number per device?  I would simply like to read a number in U-Boot and pass it to the Linux application, which is a unique number identifying the device.  If necessary, I will use the Security Secret Key, but exposing this in Linux Configuration space would be a security risk

[guignbt2v]

Hi. Is there something similar for the LX2160?

[ufedor]

Which exactly processor is in question?

[mrmichaelt86]

Processor in Question:  LS1046A

[ufedor]

Security fuse processor (SFP) contains 64-bit Factory Unique ID in two 32-bit registers (FUIDR0/1).

The FUIDR is set (and write protected) by NXP prior to part shipment to provision a
pseudo-random software readable value, which can be (optionally) included as part of the
digital signature that is validated by the ISBC. This allows OEMs to create images that
can only pass secure boot on a specific chip. OEM can consider this to be an unalterable
highly unique value for the purposes of chip identification.