About the use of /sys/fsl_otp for i.MX6UL Linux BSP

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About the use of /sys/fsl_otp for i.MX6UL Linux BSP

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yuuki
Senior Contributor II

Dear all,

We want to set eFuse after Linux start.

We found /sys/fsl_otp in Linux on MX6UL.

Can we use this file to set the following register?

Would you tell me the setting procedure if it is possible?

Bank 0, Word 0 (OCOTP_LOCK) ⇒ HW_OCOTP_LOCK

Bank 0, Word 6 (OCOTP_CFG5) ⇒ HW_OCOTP_DFG5

Bank 4, Word 0 (OCOTP_SJC_RESP0) ⇒ HW_OCOTP_SJC_RESP0

Bank 4, Word 1 (OCOTP_SJC_RESP1) ⇒ HW_OCOTP_SJC_RESP1

Best Regards,

Yuuki

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Yuri
NXP Employee
NXP Employee

Hello,

Yes, You may use the sysfs for OTP, if it is present ; available

items may be listed, using the following command

# ls /sys/fsl_otp/

Have a great day,
Yuri

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