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watchdog
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omap_wdt.h

omap_wdt.h 2.2 KB
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  1. /*
    2. 

  2.  *  linux/drivers/char/watchdog/omap_wdt.h
    3. 

  3.  *
    4. 

  4.  *  BRIEF MODULE DESCRIPTION
    5. 

  5.  *      OMAP Watchdog timer register definitions
    6. 

  6.  *
    7. 

  7.  *  Copyright (C) 2004 Texas Instruments.
    8. 

  8.  *
    9. 

  9.  *  This program is free software; you can redistribute  it and/or modify it
    10. 

  10.  *  under  the terms of  the GNU General  Public License as published by the
    11. 

  11.  *  Free Software Foundation;  either version 2 of the  License, or (at your
    12. 

  12.  *  option) any later version.
    13. 

  13.  *
    14. 

  14.  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
    15. 

  15.  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
    16. 

  16.  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
    17. 

  17.  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
    18. 

  18.  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
    19. 

  19.  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
    20. 

  20.  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
    21. 

  21.  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
    22. 

  22.  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
    23. 

  23.  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    24. 

  24.  *
    25. 

  25.  *  You should have received a copy of the  GNU General Public License along
    26. 

  26.  *  with this program; if not, write  to the Free Software Foundation, Inc.,
    27. 

  27.  *  675 Mass Ave, Cambridge, MA 02139, USA.
    28. 

  28.  */
    29. 

  29. 

  30. #ifndef _OMAP_WATCHDOG_H
    31. 

  31. #define _OMAP_WATCHDOG_H
    32. 

  32. 

  33. #define OMAP_WATCHDOG_REV		(0x00)
    34. 

  34. #define OMAP_WATCHDOG_SYS_CONFIG	(0x10)
    35. 

  35. #define OMAP_WATCHDOG_STATUS		(0x14)
    36. 

  36. #define OMAP_WATCHDOG_CNTRL		(0x24)
    37. 

  37. #define OMAP_WATCHDOG_CRR		(0x28)
    38. 

  38. #define OMAP_WATCHDOG_LDR		(0x2c)
    39. 

  39. #define OMAP_WATCHDOG_TGR		(0x30)
    40. 

  40. #define OMAP_WATCHDOG_WPS		(0x34)
    41. 

  41. #define OMAP_WATCHDOG_SPR		(0x48)
    42. 

  42. 

  43. /* Using the prescaler, the OMAP watchdog could go for many
    44. 

  44.  * months before firing.  These limits work without scaling,
    45. 

  45.  * with the 60 second default assumed by most tools and docs.
    46. 

  46.  */
    47. 

  47. #define TIMER_MARGIN_MAX	(24 * 60 * 60)	/* 1 day */
    48. 

  48. #define TIMER_MARGIN_DEFAULT	60	/* 60 secs */
    49. 

  49. #define TIMER_MARGIN_MIN	1
    50. 

  50. 

  51. #define PTV			0	/* prescale */
    52. 

  52. #define GET_WLDR_VAL(secs)	(0xffffffff - ((secs) * (32768/(1<<PTV))) + 1)
    53. 

  53. 

  54. #endif				/* _OMAP_WATCHDOG_H */
    55. 

  55.