how do i read fuse data from userspace in imx8mp

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how do i read fuse data from userspace in imx8mp

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greeran
Contributor IV

hi 

i would like to be able to read a fuse from the user space in my imx8mp. is it possible to read the fuse from userspace?

thanks

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goodspeed
Contributor II

hexdump /sys/bus/nvmem/devices/imx-ocotp0/nvmem

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JorgeCas
NXP TechSupport
NXP TechSupport

Please refer to this blog post about how users can read and write eFuses.

Understanding how to burn eFuses on i.MX8 and i.MX8x families.

Summarizing, there are two ways to blow/write efuses:

- Using UUU (Universal Update Utility).
- From U-boot.

 

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