Enable 25 Gigabit Ethernet on QSFP Port but can't find tegra264-bpmp-3834-0008-4071-xxxx.dts

Enable 25 Gigabit Ethernet on QSFP Port

discusses making change to Update the BPMP device tree by patching

Linux_for_Tegra/bootloader/generic/tegra264-bpmp-3834-0008-4071-xxxx.dtb as follows:

--- a/tegra264-bpmp-3834-0008-4071-xxxx.dts
+++ b/tegra264-bpmp-3834-0008-4071-xxxx.dts
...

To double check after extracting everything in public_sources.tbz2 and also checking

git clone -b jetson_38.2 “https://nv-tegra.nvidia.com/r/device/hardware/nvidia/t264-public-dts”

I cannot find tegra264-bpmp-3834-0008-4071-xxxx.dts.

Where can I get it?

bpmp dtb is never in the source tarball. You need to convert the dtb file in your BSP directory Linux_for_Tegra/bootloader and update it.