at91_pit.h 750 B

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  1. /* SPDX-License-Identifier: GPL-2.0+ */
  2. /*
  3. * [origin: Linux kernel include/asm-arm/arch-at91/at91_pit.h]
  4. *
  5. * Copyright (C) 2007 Andrew Victor
  6. * Copyright (C) 2007 Atmel Corporation.
  7. *
  8. * Periodic Interval Timer (PIT) - System peripherals regsters.
  9. * Based on AT91SAM9261 datasheet revision D.
  10. */
  11. #ifndef AT91_PIT_H
  12. #define AT91_PIT_H
  13. typedef struct at91_pit {
  14. u32 mr; /* 0x00 Mode Register */
  15. u32 sr; /* 0x04 Status Register */
  16. u32 pivr; /* 0x08 Periodic Interval Value Register */
  17. u32 piir; /* 0x0C Periodic Interval Image Register */
  18. } at91_pit_t;
  19. #define AT91_PIT_MR_IEN 0x02000000
  20. #define AT91_PIT_MR_EN 0x01000000
  21. #define AT91_PIT_MR_PIV_MASK(x) (x & 0x000fffff)
  22. #define AT91_PIT_MR_PIV(x) (x & AT91_PIT_MR_PIV_MASK)
  23. #endif