clock.h 1.0 KB

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  1. /*
  2. * include/asm-arm/arch-ns9xxx/clock.h
  3. *
  4. * Copyright (C) 2007 by Digi International Inc.
  5. * All rights reserved.
  6. *
  7. * This program is free software; you can redistribute it and/or modify it
  8. * under the terms of the GNU General Public License version 2 as published by
  9. * the Free Software Foundation.
  10. */
  11. #ifndef __ASM_ARCH_CLOCK_H
  12. #define __ASM_ARCH_CLOCK_H
  13. static inline u32 ns9xxx_systemclock(void) __attribute__((const));
  14. static inline u32 ns9xxx_systemclock(void)
  15. {
  16. /*
  17. * This should be a multiple of HZ * TIMERCLOCKSELECT (in time.c)
  18. */
  19. return 353894400;
  20. }
  21. static inline u32 ns9xxx_cpuclock(void) __attribute__((const));
  22. static inline u32 ns9xxx_cpuclock(void)
  23. {
  24. return ns9xxx_systemclock() / 2;
  25. }
  26. static inline u32 ns9xxx_ahbclock(void) __attribute__((const));
  27. static inline u32 ns9xxx_ahbclock(void)
  28. {
  29. return ns9xxx_systemclock() / 4;
  30. }
  31. static inline u32 ns9xxx_bbusclock(void) __attribute__((const));
  32. static inline u32 ns9xxx_bbusclock(void)
  33. {
  34. return ns9xxx_systemclock() / 8;
  35. }
  36. #endif /* ifndef __ASM_ARCH_CLOCK_H */