text: /*
   * drivers/watchdog/at91sam9_wdt.h
   *
   * Copyright (C) 2007 Andrew Victor
   * Copyright (C) 2007 Atmel Corporation.
   *
   * Watchdog Timer (WDT) - System peripherals regsters.
   * Based on AT91SAM9261 datasheet revision D.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   */
  
  #ifndef AT91_WDT_H
  #define AT91_WDT_H
  
  #define AT91_WDT_CR		0x00			/* Watchdog Control Register */
  #define		AT91_WDT_WDRSTT		(1    << 0)		/* Restart */
  #define		AT91_WDT_KEY		(0xa5 << 24)		/* KEY Password */
  
  #define AT91_WDT_MR		0x04			/* Watchdog Mode Register */
  #define		AT91_WDT_WDV		(0xfff << 0)		/* Counter Value */
  #define			AT91_WDT_SET_WDV(x)	((x) & AT91_WDT_WDV)
  #define		AT91_WDT_WDFIEN		(1     << 12)		/* Fault Interrupt Enable */
  #define		AT91_WDT_WDRSTEN	(1     << 13)		/* Reset Processor */
  #define		AT91_WDT_WDRPROC	(1     << 14)		/* Timer Restart */
  #define		AT91_WDT_WDDIS		(1     << 15)		/* Watchdog Disable */
  #define		AT91_WDT_WDD		(0xfff << 16)		/* Delta Value */
  #define			AT91_WDT_SET_WDD(x)	(((x) << 16) & AT91_WDT_WDD)
  #define		AT91_WDT_WDDBGHLT	(1     << 28)		/* Debug Halt */
  #define		AT91_WDT_WDIDLEHLT	(1     << 29)		/* Idle Halt */
  
  #define AT91_WDT_SR		0x08			/* Watchdog Status Register */
  #define		AT91_WDT_WDUNF		(1 << 0)		/* Watchdog Underflow */
  #define		AT91_WDT_WDERR		(1 << 1)		/* Watchdog Error */
  
  #endif
  