How to disable debug console on UART port Orin NX?

I need to disable the UART debug console on the Orin NX as it’s a security requirement for my team. We do not need to use that particular UART port for something else. We just want disable its console functionality. What is the easiest way to do this?

I found this reference
https://docs.nvidia.com/jetson/archives/l4t-archived/l4t-3243/index.html#page/Tegra%2520Linux%2520Driver%2520Package%2520Development%2520Guide%2Fkernel_boot_time.html%23wwpID0E0YB0HA
though it doesn’t mention the Orin. Is this sufficient or do I need to do something like modify the device tree?

Hi,

If you don’t need to use this debug UART as a normal UART, and just want to disable the console, then just delete console=ttyTCU0,115200 from /boot/extlinux/extlinux.conf on your device.
Or if you want to do it before flashing, then it’s the same as stated in the document. Do the same thing on p3767.conf.common.

Awesome, I will give that a shot and let you know if I have issues. Thanks!

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