mcfpit.h 2.2 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. /****************************************************************************/
  3. /*
  4. * mcfpit.h -- ColdFire internal PIT timer support defines.
  5. *
  6. * (C) Copyright 2003, Greg Ungerer ([email protected])
  7. */
  8. /****************************************************************************/
  9. #ifndef mcfpit_h
  10. #define mcfpit_h
  11. /****************************************************************************/
  12. /*
  13. * Define the PIT timer register address offsets.
  14. */
  15. #define MCFPIT_PCSR 0x0 /* PIT control register */
  16. #define MCFPIT_PMR 0x2 /* PIT modulus register */
  17. #define MCFPIT_PCNTR 0x4 /* PIT count register */
  18. /*
  19. * Bit definitions for the PIT Control and Status register.
  20. */
  21. #define MCFPIT_PCSR_CLK1 0x0000 /* System clock divisor */
  22. #define MCFPIT_PCSR_CLK2 0x0100 /* System clock divisor */
  23. #define MCFPIT_PCSR_CLK4 0x0200 /* System clock divisor */
  24. #define MCFPIT_PCSR_CLK8 0x0300 /* System clock divisor */
  25. #define MCFPIT_PCSR_CLK16 0x0400 /* System clock divisor */
  26. #define MCFPIT_PCSR_CLK32 0x0500 /* System clock divisor */
  27. #define MCFPIT_PCSR_CLK64 0x0600 /* System clock divisor */
  28. #define MCFPIT_PCSR_CLK128 0x0700 /* System clock divisor */
  29. #define MCFPIT_PCSR_CLK256 0x0800 /* System clock divisor */
  30. #define MCFPIT_PCSR_CLK512 0x0900 /* System clock divisor */
  31. #define MCFPIT_PCSR_CLK1024 0x0a00 /* System clock divisor */
  32. #define MCFPIT_PCSR_CLK2048 0x0b00 /* System clock divisor */
  33. #define MCFPIT_PCSR_CLK4096 0x0c00 /* System clock divisor */
  34. #define MCFPIT_PCSR_CLK8192 0x0d00 /* System clock divisor */
  35. #define MCFPIT_PCSR_CLK16384 0x0e00 /* System clock divisor */
  36. #define MCFPIT_PCSR_CLK32768 0x0f00 /* System clock divisor */
  37. #define MCFPIT_PCSR_DOZE 0x0040 /* Clock run in doze mode */
  38. #define MCFPIT_PCSR_HALTED 0x0020 /* Clock run in halt mode */
  39. #define MCFPIT_PCSR_OVW 0x0010 /* Overwrite PIT counter now */
  40. #define MCFPIT_PCSR_PIE 0x0008 /* Enable PIT interrupt */
  41. #define MCFPIT_PCSR_PIF 0x0004 /* PIT interrupt flag */
  42. #define MCFPIT_PCSR_RLD 0x0002 /* Reload counter */
  43. #define MCFPIT_PCSR_EN 0x0001 /* Enable PIT */
  44. #define MCFPIT_PCSR_DISABLE 0x0000 /* Disable PIT */
  45. /****************************************************************************/
  46. #endif /* mcfpit_h */