Xavier4.3, How can I debug with ttyTSH0 instead of ttyTCU0?

The UART2 can only display the debug info started from linux kernel, and can’t display the information of bootloader.Do you have any idea to display the information of bootloader?

had you follow the steps in comment #26 to disable combined-uart?
if yes, you should also modify bpmp-dtb and assign the serial port.

Where is the bpmp-dtb, I have searched it in the project directory and can’t find it.

hello tianyi2,

please check flash messages for the bpmp-fw-dtb, for example, it’s binary file tegra194-a02-bpmp-p2888-a02.dtb.
you should disassembler the dtb file into text file for edit. $ dtc -I dtb -O dts -o temp.dts input.dtb
and, please use the same tool to convert the DTS into a new DTB binary. $ dtc -I dts -O dtb -o output.dtb temp.dts

I can’t found the file tegra194-a02-bpmp-p2888-a02.dtb .The following command is the method to generate dtb and search bpmp.
make ARCH=arm64 O=$TEGRA_KERNEL_OUT dtbs|grep bpmp
There is nothing displayed.

Inside your Linux_for_Tegra folder.

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