u-boot/arch/blackfin/include/asm/mach-common/bits/watchdog.h

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/*
* Watchdog Masks
*/
#ifndef __BFIN_PERIPHERAL_WATCHDOG__
#define __BFIN_PERIPHERAL_WATCHDOG__
/* Watchdog Timer WDOG_CTL Register Masks */
#define WDEV 0x0006 /* event generated on roll over */
#define WDEV_RESET 0x0000 /* generate reset event on roll over */
#define WDEV_NMI 0x0002 /* generate NMI event on roll over */
#define WDEV_GPI 0x0004 /* generate GP IRQ on roll over */
#define WDEV_NONE 0x0006 /* no event on roll over */
#define WDEN 0x0FF0 /* enable watchdog */
#define WDDIS 0x0AD0 /* disable watchdog */
#define WDRO 0x8000 /* watchdog rolled over latch */
#endif