AnsweredAssumed Answered

How to disable serial boot mode with fuse blowing?

Question asked by Shital Gandhi on Jul 17, 2019
Latest reply on Jul 23, 2019 by Diego Adrian Cuevas

Hello Folks,


I am working on imx6 dual lite board, I have programmed SRKH keys successfully by blowing fuses from kernel in /sys/fsl_otp.
Now, once board comes out of the factory or during production I wanted to disable serial boot using fuse register.


Hence, no one can connect OTG and flash uboot thorigh serial mode.


I know that BOOT_CFG4 is the right register to disable serial boot mode, but I don't know what value need to burn.

Also, I want to lock all the fuse register hence no one can rewrite again.

Could anyone please help me here.

Thanks in advance.

Shital Gandhi