arch/m68k/include/asm/timex.h

   1 /*
   2  * linux/include/asm-m68k/timex.h
   3  *
   4  * m68k architecture timex specifications
   5  */
   6 #ifndef _ASMm68K_TIMEX_H
   7 #define _ASMm68K_TIMEX_H
   8
   9 #ifdef CONFIG_COLDFIRE
  10 /*
  11  * CLOCK_TICK_RATE should give the underlying frequency of the tick timer
  12  * to make ntp work best.  For Coldfires, that's the main clock.
  13  */
  14 #include <asm/coldfire.h>
  15 #define CLOCK_TICK_RATE MCF_CLK
  16 #else
  17 /*
  18  * This default CLOCK_TICK_RATE is probably wrong for many 68k boards
  19  * Users of those boards will need to check and modify accordingly
  20  */
  21 #define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
  22 #endif
  23
  24 typedef unsigned long cycles_t;
  25
  26 static inline cycles_t get_cycles(void)
  27 {
  28         return 0;
  29 }
  30
  31 extern unsigned long (*mach_random_get_entropy)(void);
  32
  33 static inline unsigned long random_get_entropy(void)
  34 {
  35         if (mach_random_get_entropy)
  36                 return mach_random_get_entropy();
  37         return 0;
  38 }
  39 #define random_get_entropy      random_get_entropy
  40
  41 #endif