Jetson TX2 watchdog reboot on custom device

Hi,

I am using jetson TX2 4GB module.

in my custom board when i am running the command device is getting stucked and it is giving watchdog reset.

“shutdown -h now”

getting below log messages

root@tegra-ubuntu:/home/ubuntu# dmesg | grep reset
[ 0.418854] tegra-pmc: ### PMC reset source: TEGRA_BCCPLEX_WATCHDOG
[ 0.418867] tegra-pmc: ### PMC reset level: TEGRA_RESET_LEVEL_L1
[ 0.418879] tegra-pmc: ### PMC reset status reg: 0x9

can anyone can please help here what does these TEGRA_BCCPLEX_WATCHDOG means?

can you get much information here