How to disable JTAG, Serial download in imx8dxp?

[nilesh_patel]

Hi,

We need to disable JTAG and Serial download in imx8dxp.

How can we disable JTAG and serial download in Linux firmware.?

Thanks,

Nilesh Patel

[Bio_TICFSL]

Hello Nilesh,

The correct OTP fuse to blow is SJC Disable:

Not sure why our i.MX8 Reference Manual refuses to define this fuse, but previous i.MX family parts did define this pin:

Regards