arch/arm/mach-clps711x/include/mach/time.h

   1 /*
   2  *  arch/arm/mach-clps711x/include/mach/time.h
   3  *
   4  *  Copyright (C) 2000 Deep Blue Solutions Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 #include <asm/leds.h>
  21 #include <asm/hardware/clps7111.h>
  22
  23 extern void clps711x_setup_timer(void);
  24
  25 /*
  26  * IRQ handler for the timer
  27  */
  28 static irqreturn_t
  29 p720t_timer_interrupt(int irq, void *dev_id)
  30 {
  31         struct pt_regs *regs = get_irq_regs();
  32         do_leds();
  33         xtime_update(1);
  34 #ifndef CONFIG_SMP
  35         update_process_times(user_mode(regs));
  36 #endif
  37         do_profile(regs);
  38         return IRQ_HANDLED;
  39 }
  40
  41 /*
  42  * Set up timer interrupt, and return the current time in seconds.
  43  */
  44 void __init time_init(void)
  45 {
  46         clps711x_setup_timer();
  47         timer_irq.handler = p720t_timer_interrupt;
  48         setup_irq(IRQ_TC2OI, &timer_irq);
  49 }