iMX6UL Fuses default value

[steveglover]

Hi

I used the uboot commad fuse read to read the OCOTP_LOCK word at bank 0 word 0.  I expected to find 0000_0000 but instead found  0032_0002. Fuse sense returns the same value. What is the default value of this fuse? If it should be 0000_0000 why do I have a different value, since I have not purposely programmed it.

Thanks

Steve

[igorpadykov · Accepted solution]

Hi Steve

OCOTP_LOCK is decribed in sect.36.5.11 Value of OTP Bank0 Word0 (Lock controls)

(OCOTP_LOCK) i.MX6UL and some bits are programmed on factory, like

OTPMK, ROM_PATCH, TESTER, as they are not intended for customer purposes.

Best regards

igor

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[steveglover]

Thanks Igor