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kernel/linux-imx6_3.14.28/drivers/watchdog/omap_wdt.h 2.17 KB
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  /*
   *  linux/drivers/char/watchdog/omap_wdt.h
   *
   *  BRIEF MODULE DESCRIPTION
   *      OMAP Watchdog timer register definitions
   *
   *  Copyright (C) 2004 Texas Instruments.
   *
   *  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.
   *
   *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
   *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
   *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
   *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
   *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
   *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
   *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
   *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   *  You should have received a copy of the  GNU General Public License along
   *  with this program; if not, write  to the Free Software Foundation, Inc.,
   *  675 Mass Ave, Cambridge, MA 02139, USA.
   */
  
  #ifndef _OMAP_WATCHDOG_H
  #define _OMAP_WATCHDOG_H
  
  #define OMAP_WATCHDOG_REV		(0x00)
  #define OMAP_WATCHDOG_SYS_CONFIG	(0x10)
  #define OMAP_WATCHDOG_STATUS		(0x14)
  #define OMAP_WATCHDOG_CNTRL		(0x24)
  #define OMAP_WATCHDOG_CRR		(0x28)
  #define OMAP_WATCHDOG_LDR		(0x2c)
  #define OMAP_WATCHDOG_TGR		(0x30)
  #define OMAP_WATCHDOG_WPS		(0x34)
  #define OMAP_WATCHDOG_SPR		(0x48)
  
  /* Using the prescaler, the OMAP watchdog could go for many
   * months before firing.  These limits work without scaling,
   * with the 60 second default assumed by most tools and docs.
   */
  #define TIMER_MARGIN_MAX	(24 * 60 * 60)	/* 1 day */
  #define TIMER_MARGIN_DEFAULT	60	/* 60 secs */
  #define TIMER_MARGIN_MIN	1
  
  #define PTV			0	/* prescale */
  #define GET_WLDR_VAL(secs)	(0xffffffff - ((secs) * (32768/(1<<PTV))) + 1)
  
  #endif				/* _OMAP_WATCHDOG_H */