how to fuse JTAG_SMODE (secure jtag mode) in i.mx7?

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how to fuse JTAG_SMODE (secure jtag mode) in i.mx7?

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oferfederovsky
Contributor III

I'm trying to find how to fuse the JTAG_SMODE fuses.

I can't find the relevant information the in i.mx7drm reference manual.

Actually I would like to have the equivalent to this configuration done in i.mx6:

echo 'Disabling JTAG #1 (SJC_DISABLE)'
echo 0x100000 > /sys/fsl_otp/HW_OCOTP_CFG5

echo 'Disabling JTAG #2a (DISABLE_JTAG)'
echo 0x400000 > /sys/fsl_otp/HW_OCOTP_CFG5

echo 'Disabling JTAG #2b (DISABLE_JTAG)'
echo 0x800000 > /sys/fsl_otp/HW_OCOTP_CFG5

echo 'Disabling HW Tracing (KTE fuse)'
echo 0x4000000 > /sys/fsl_otp/HW_OCOTP_CFG5

Thank you in advance.

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b36401
NXP TechSupport
NXP TechSupport

It should we described in Security Reference Manual that will be released in days.

Have a great day,
Victor

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