MAX_WDT_TIMEOUT
booke_wdt_dev.max_timeout = MAX_WDT_TIMEOUT;
wdt->mr |= AT91_WDT_SET_WDD(WDT_SEC2TICKS(MAX_WDT_TIMEOUT));
#define WDT_DEFAULT_TIMEOUT MAX_WDT_TIMEOUT
wdd->max_timeout = MAX_WDT_TIMEOUT;
wdd->max_timeout = MAX_WDT_TIMEOUT;