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Check if OPTMK is burned in i.MX6 userspace

Question asked by huzaifahcs on Jul 19, 2016
Latest reply on Jul 20, 2016 by Yuri Muhin



Can someone please explain how can we determine if OTPMK has been burned in user space. Is there any interface for caam to test this register "SNVS_HP Status Register" or any log file? Do i have to write a kernel module to check the value of the OPTMK_ZERO bit or you please provide any user space solution/command.

I have tested that my files HW_OCOTP_OTPMK[0-7] and these are empty.

I have also learned that "One can determine if a valid OTPMK has been burned by checking the OTPMK_ZERO bit in the SNVS_HP Status Register." from Mr Yuri's message here Burning/Checking OTPMK fuses for HAB on I.MX6.

All I need is to check if and how can I check this in user space??


Thanks for your help.