arch/arm/mach-shmobile/timer.c

   1 /*
   2  * SH-Mobile Timer
   3  *
   4  * Copyright (C) 2010  Magnus Damm
   5  * Copyright (C) 2002 - 2009  Paul Mundt
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21 #include <linux/platform_device.h>
  22 #include <asm/mach/time.h>
  23
  24 static void __init shmobile_late_time_init(void)
  25 {
  26         /*
  27          * Make sure all compiled-in early timers register themselves.
  28          *
  29          * Run probe() for two "earlytimer" devices, these will be the
  30          * clockevents and clocksource devices respectively. In the event
  31          * that only a clockevents device is available, we -ENODEV on the
  32          * clocksource and the jiffies clocksource is used transparently
  33          * instead. No error handling is necessary here.
  34          */
  35         early_platform_driver_register_all("earlytimer");
  36         early_platform_driver_probe("earlytimer", 2, 0);
  37 }
  38
  39 static void __init shmobile_timer_init(void)
  40 {
  41         late_time_init = shmobile_late_time_init;
  42 }
  43
  44 struct sys_timer shmobile_timer = {
  45         .init           = shmobile_timer_init,
  46 };