arch/mips/loongson64/common/time.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
   4  * Author: Fuxin Zhang, zhangfx@lemote.com
   5  *
   6  * Copyright (C) 2009 Lemote Inc.
   7  * Author: Wu Zhangjin, wuzhangjin@gmail.com
   8  */
   9 #include <asm/mc146818-time.h>
  10 #include <asm/time.h>
  11 #include <asm/hpet.h>
  12
  13 #include <loongson.h>
  14 #include <cs5536/cs5536_mfgpt.h>
  15
  16 void __init plat_time_init(void)
  17 {
  18         /* setup mips r4k timer */
  19         mips_hpt_frequency = cpu_clock_freq / 2;
  20
  21 #ifdef CONFIG_RS780_HPET
  22         setup_hpet_timer();
  23 #else
  24         setup_mfgpt0_timer();
  25 #endif
  26 }
  27
  28 void read_persistent_clock64(struct timespec64 *ts)
  29 {
  30         ts->tv_sec = mc146818_get_cmos_time();
  31         ts->tv_nsec = 0;
  32 }