topic Re: OTP on Layerscape in Layerscape

OTP on Layerscape

mrmichaelt86 — Mon, 05 Oct 2020 21:09:14 GMT

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

Re: OTP on Layerscape

ufedor — Tue, 06 Oct 2020 04:50:40 GMT

Which exactly processor is in question?

Re: OTP on Layerscape

mrmichaelt86 — Mon, 12 Oct 2020 14:15:44 GMT

Processor in Question: LS1046A

Re: OTP on Layerscape

ufedor — Mon, 12 Oct 2020 16:09:52 GMT

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.

Re: OTP on Layerscape

guignbt2v — Thu, 29 Jul 2021 17:49:21 GMT

Hi. Is there something similar for the LX2160?