Broadcom BCM2835 hardware watchdog

modulename: bcm2835_wdt.ko

configname: CONFIG_BCM2835_WDT

Linux Kernel Configuration
└─>Device Drivers
└─>Watchdog Timer Support
└─>Device Tree and Open Firmware support
└─>Broadcom BCM2835 hardware watchdog
In linux kernel since version 3.11 (release Date: 2013-09-02)  
Watchdog driver for the built in watchdog hardware in Broadcom
BCM2835 SoC.

To compile this driver as a loadable module, choose M here.
The module will be called bcm2835_wdt.

source code:

depends
CONFIG_WATCHDOG
CONFIG_ARCH_BCM2835 or CONFIG_COMPILE_TEST
CONFIG_OF