How to obtain UART logs on Jetson Nano production modules, over UART 2

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
,
13

Hi JerryChang,

Thanks for the dtsi file contents. We thought that if there was a hardware issue, we would not be able to view anything on the host console, or random characters. But we do see the following after a boot (during the boot, nothing is visible on the host console):

Ubuntu 18.04.2 LTS tegra-ubuntu ttyTHS1

tegra-ubuntu login:

This is if we enable nvgetty.service.

Also, the contents of the original jetson210-jetson-common.dtsi file that we had from Jetpack 4.2.1 are:

serial@70006000 {
compatible = “nvidia,tegra210-uart”, “nvidia,tegra114-hsuart”, “nvidia,tegra20-uart”;
console-port;
sqa-automation-port;
enable-rx-poll-timer;
/delete-property/ resets;
/delete-property/ reset-names;
status = “okay”;
};

serial@70006040 {
status = “okay”;
};

serial@70006200 {
status = “okay”;
};

We changed it accroding to what you sent, still we don’t see the UART logs.