at91sam9_wdt.h 1.3 KB

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  1. /* SPDX-License-Identifier: GPL-2.0+ */
  2. /*
  3. * drivers/watchdog/at91sam9_wdt.h
  4. *
  5. * Copyright (C) 2007 Andrew Victor
  6. * Copyright (C) 2007 Atmel Corporation.
  7. *
  8. * Watchdog Timer (WDT) - System peripherals regsters.
  9. * Based on AT91SAM9261 datasheet revision D.
  10. *
  11. */
  12. #ifndef AT91_WDT_H
  13. #define AT91_WDT_H
  14. #define AT91_WDT_CR 0x00 /* Watchdog Control Register */
  15. #define AT91_WDT_WDRSTT (1 << 0) /* Restart */
  16. #define AT91_WDT_KEY (0xa5 << 24) /* KEY Password */
  17. #define AT91_WDT_MR 0x04 /* Watchdog Mode Register */
  18. #define AT91_WDT_WDV (0xfff << 0) /* Counter Value */
  19. #define AT91_WDT_SET_WDV(x) ((x) & AT91_WDT_WDV)
  20. #define AT91_WDT_WDFIEN (1 << 12) /* Fault Interrupt Enable */
  21. #define AT91_WDT_WDRSTEN (1 << 13) /* Reset Processor */
  22. #define AT91_WDT_WDRPROC (1 << 14) /* Timer Restart */
  23. #define AT91_WDT_WDDIS (1 << 15) /* Watchdog Disable */
  24. #define AT91_WDT_WDD (0xfff << 16) /* Delta Value */
  25. #define AT91_WDT_SET_WDD(x) (((x) << 16) & AT91_WDT_WDD)
  26. #define AT91_WDT_WDDBGHLT (1 << 28) /* Debug Halt */
  27. #define AT91_WDT_WDIDLEHLT (1 << 29) /* Idle Halt */
  28. #define AT91_WDT_SR 0x08 /* Watchdog Status Register */
  29. #define AT91_WDT_WDUNF (1 << 0) /* Watchdog Underflow */
  30. #define AT91_WDT_WDERR (1 << 1) /* Watchdog Error */
  31. #endif