PowerPC Book-E Watchdog Timer Default Timeout

configname: CONFIG_BOOKE_WDT_DEFAULT_TIMEOUT

Linux Kernel Configuration
└─>Device Drivers
└─>Watchdog Timer Support
└─>PowerPC Book-E Watchdog Timer Default Timeout
In linux kernel since version 2.6.37 (release Date: 2011-01-04)  
Select the default watchdog timer period to be used by the PowerPC
Book-E watchdog driver. A watchdog "event" occurs when the bit
position represented by this number transitions from zero to one.

For Freescale Book-E processors, this is a number between 0 and 63.
For other Book-E processors, this is a number between 0 and 3.

The value can be overridden by the wdt_period command-line parameter.