arch/blackfin/cpu/watchdog.c

   1 /*
   2  * watchdog.c - driver for Blackfin on-chip watchdog
   3  *
   4  * Copyright (c) 2007-2009 Analog Devices Inc.
   5  *
   6  * Licensed under the GPL-2 or later.
   7  */
   8
   9 #include <common.h>
  10 #include <watchdog.h>
  11 #include <asm/blackfin.h>
  12
  13 void hw_watchdog_reset(void)
  14 {
  15         bfin_write_WDOG_STAT(0);
  16 }
  17
  18 void hw_watchdog_init(void)
  19 {
  20         bfin_write_WDOG_CNT(5 * get_sclk());    /* 5 second timeout */
  21         hw_watchdog_reset();
  22         bfin_write_WDOG_CTL(0x0);
  23 }