forked from Minki/linux
c728d60455
h8300 using generic irq handler patch. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/*
|
|
* linux/arch/h8300/kernel/time.c
|
|
*
|
|
* Yoshinori Sato <ysato@users.sourceforge.jp>
|
|
*
|
|
* Copied/hacked from:
|
|
*
|
|
* linux/arch/m68k/kernel/time.c
|
|
*
|
|
* Copyright (C) 1991, 1992, 1995 Linus Torvalds
|
|
*
|
|
* This file contains the m68k-specific time handling details.
|
|
* Most of the stuff is located in the machine specific files.
|
|
*
|
|
* 1997-09-10 Updated NTP code according to technical memorandum Jan '96
|
|
* "A Kernel Model for Precision Timekeeping" by Dave Mills
|
|
*/
|
|
|
|
#include <linux/errno.h>
|
|
#include <linux/module.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/param.h>
|
|
#include <linux/string.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/timex.h>
|
|
#include <linux/profile.h>
|
|
|
|
#include <asm/io.h>
|
|
#include <asm/target_time.h>
|
|
|
|
#define TICK_SIZE (tick_nsec / 1000)
|
|
|
|
/*
|
|
* timer_interrupt() needs to keep up the real-time clock,
|
|
* as well as call the "do_timer()" routine every clocktick
|
|
*/
|
|
static void timer_interrupt(int irq, void *dummy, struct pt_regs * regs)
|
|
{
|
|
/* may need to kick the hardware timer */
|
|
platform_timer_eoi();
|
|
|
|
do_timer(1);
|
|
#ifndef CONFIG_SMP
|
|
update_process_times(user_mode(regs));
|
|
#endif
|
|
profile_tick(CPU_PROFILING);
|
|
}
|
|
|
|
void time_init(void)
|
|
{
|
|
unsigned int year, mon, day, hour, min, sec;
|
|
|
|
/* FIX by dqg : Set to zero for platforms that don't have tod */
|
|
/* without this time is undefined and can overflow time_t, causing */
|
|
/* very stange errors */
|
|
year = 1980;
|
|
mon = day = 1;
|
|
hour = min = sec = 0;
|
|
platform_gettod (&year, &mon, &day, &hour, &min, &sec);
|
|
|
|
if ((year += 1900) < 1970)
|
|
year += 100;
|
|
xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
|
|
xtime.tv_nsec = 0;
|
|
|
|
platform_timer_setup(timer_interrupt);
|
|
}
|