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

   1/*
   2 * OpenRISC Linux
   3 *
   4 * Linux architectural port borrowing liberally from similar works of
   5 * others.  All original copyrights apply as per the original source
   6 * declaration.
   7 *
   8 * OpenRISC implementation:
   9 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
  10 *
  11 * This program is free software; you can redistribute it and/or modify
  12 * it under the terms of the GNU General Public License as published by
  13 * the Free Software Foundation; either version 2 of the License, or
  14 * (at your option) any later version.
  15 */
  16
  17#ifndef __ASM_OPENRISC_TIMEX_H
  18#define __ASM_OPENRISC_TIMEX_H
  19
  20#define get_cycles get_cycles
  21
  22#include <asm-generic/timex.h>
  23#include <asm/spr.h>
  24#include <asm/spr_defs.h>
  25
  26static inline cycles_t get_cycles(void)
  27{
  28        return mfspr(SPR_TTCR);
  29}
  30
  31/* This isn't really used any more */
  32#define CLOCK_TICK_RATE 1000
  33
  34#define ARCH_HAS_READ_CURRENT_TIMER
  35
  36#endif
  37