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Read and Write OTP register from linux

Question asked by Damien Gotfroi on May 4, 2015
Latest reply on Nov 13, 2017 by thomaslinder

Hello,

 

I'm working on a project using IMX28.

For this project, I would like to store (On chip and not in the SD Card memory) the serial number of my board and an crypto key (not for secure boot, only for communication cryptography).

I think On-Chip OTP can do the trick.

 

But I would like to know how to read and write OTP registers directly from embedded linux ?

 

I'm using Freescale Yocto dizzy for the compilation (https://github.com/Freescale/fsl-community-bsp-platform -b dizzy).

 

Many thanks for your help,

 

Damien

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