arch/mips/kernel/csrc-r4k.c

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2007 by Ralf Baechle
   7  */
   8
   9 static cycle_t c0_hpt_read(void)
  10 {
  11         return read_c0_count();
  12 }
  13
  14 static struct clocksource clocksource_mips = {
  15         .name           = "MIPS",
  16         .read           = c0_hpt_read,
  17         .mask           = CLOCKSOURCE_MASK(32),
  18         .flags          = CLOCK_SOURCE_IS_CONTINUOUS,
  19 };
  20
  21 static void __init init_mips_clocksource(void)
  22 {
  23         /* Calclate a somewhat reasonable rating value */
  24         clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000;
  25
  26         clocksource_set_clock(&clocksource_mips, mips_hpt_frequency);
  27
  28         clocksource_register(&clocksource_mips);
  29 }