What is the best way to disable uart0 debug function and use it as normal uart on TX2 R32.1?


I delete ‘console=ttyS0,115200n8’ in the following two file:
p2771-0000.conf.common CMDLINE_ADD=“fbcon=map:0 net.ifnames=0” ,and
tegra186-quill-p3310-1000-a00-00-base.dts bootargs =“androidboot.presilicon=true firmware_class.path=/etc/firmware”.
Then compile dtb and reflash dtb, TX2 boot time is longer(more than 30s) than before and I don’t know why.

hello suchb,

may I know what’s your actual use-case?
you may refer to documentation, Disable Console over UART, for your kernel boot time optimization.

Hi JerryChang,

I want use this debug uart0(Jetson TX2 Pins UART0) to do serial communication with other sensor,only need TX&RX pins.
So I need to disable the debug functions,no boot info,no kernel info,no system service info…

hello suchb,

you might refer to Topic 54744 for the steps to switch uart instance.