LXR linux/arch/m68k/include/asm/timex.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * linux/include/asm-m68k/timex.h
   4 *
   5 * m68k architecture timex specifications
   6 */
   7#ifndef _ASMm68K_TIMEX_H
   8#define _ASMm68K_TIMEX_H
   9
  10#ifdef CONFIG_COLDFIRE
  11/*
  12 * CLOCK_TICK_RATE should give the underlying frequency of the tick timer
  13 * to make ntp work best.  For Coldfires, that's the main clock.
  14 */
  15#include <asm/coldfire.h>
  16#define CLOCK_TICK_RATE MCF_CLK
  17#else
  18/*
  19 * This default CLOCK_TICK_RATE is probably wrong for many 68k boards
  20 * Users of those boards will need to check and modify accordingly
  21 */
  22#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
  23#endif
  24
  25typedef unsigned long cycles_t;
  26
  27static inline cycles_t get_cycles(void)
  28{
  29        return 0;
  30}
  31
  32extern unsigned long (*mach_random_get_entropy)(void);
  33
  34static inline unsigned long random_get_entropy(void)
  35{
  36        if (mach_random_get_entropy)
  37                return mach_random_get_entropy();
  38        return 0;
  39}
  40#define random_get_entropy      random_get_entropy
  41
  42#endif
  43