BCM63xx/BCM7038 Watchdog

modulename: bcm7038_wdt.ko

configname: CONFIG_BCM7038_WDT

Linux Kernel Configuration
└─>Device Drivers
└─>Watchdog Timer Support
└─>BCM63xx/BCM7038 Watchdog
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Watchdog driver for the built-in hardware in Broadcom 7038 and
later SoCs used in set-top boxes. BCM7038 was made public
during the 2004 CES, and since then, many Broadcom chips use this
watchdog block, including some cable modem chips and DSL (63xx)
chips.

source code: