Lines Matching refs:key
288 * and a 3-bit key value. The effect of writing to the R_WATCHDOG register is
292 * state: To enable: To key: Operation:
295 * stopped 1 key_val Start watchdog with key = key_val.
296 * started 0 ~key Stop watchdog
297 * started 1 ~key Restart watchdog with key = ~key.
298 * started X new_key_val Change key to new_key_val.
323 /* reset the watchdog with the inverse of the old key */
324 watchdog_key ^= 0x7; /* invert key, which is 3 bits */
325 *R_WATCHDOG = IO_FIELD(R_WATCHDOG, key, watchdog_key) |
331 /* stop the watchdog - we still need the correct key */
337 watchdog_key ^= 0x7; /* invert key, which is 3 bits */
338 *R_WATCHDOG = IO_FIELD(R_WATCHDOG, key, watchdog_key) |