arch/mips/loongson64/common/time.c

   1 /*
   2  * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
   3  * Author: Fuxin Zhang, zhangfx@lemote.com
   4  *
   5  * Copyright (C) 2009 Lemote Inc.
   6  * Author: Wu Zhangjin, wuzhangjin@gmail.com
   7  *
   8  *  This program is free software; you can redistribute  it and/or modify it
   9  *  under  the terms of  the GNU General  Public License as published by the
  10  *  Free Software Foundation;  either version 2 of the  License, or (at your
  11  *  option) any later version.
  12  */
  13 #include <asm/mc146818-time.h>
  14 #include <asm/time.h>
  15 #include <asm/hpet.h>
  16
  17 #include <loongson.h>
  18 #include <cs5536/cs5536_mfgpt.h>
  19
  20 void __init plat_time_init(void)
  21 {
  22         /* setup mips r4k timer */
  23         mips_hpt_frequency = cpu_clock_freq / 2;
  24
  25 #ifdef CONFIG_RS780_HPET
  26         setup_hpet_timer();
  27 #else
  28         setup_mfgpt0_timer();
  29 #endif
  30 }
  31
  32 void read_persistent_clock(struct timespec *ts)
  33 {
  34         ts->tv_sec = mc146818_get_cmos_time();
  35         ts->tv_nsec = 0;
  36 }