According to the online development guide document, the value of UPHY1 can only be 0 or 8.
Execute the following command to view the contents of the .dts file.
$ dtc -I dtb -O dts -o tegra264-bpmp-3834-0008-4071-xxxx.dts tegra264-bpmp-3834-0008-4071-xxxx.dtb
uphy {
status = "okay";
uphy0-config = <0x07>;
uphy1-config = <0x07>;
mgbe0-speed = <0x02>;
mgbe1-speed = <0x02>;
mgbe2-speed = <0x02>;
mgbe3-speed = <0x02>;
};
