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/*
* 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/timer.h>
#define TICK_SIZE (tick_nsec / 1000)
void h8300_timer_tick(void)
{
if (current->pid)
profile_tick(CPU_PROFILING);
write_seqlock(&xtime_lock);
do_timer(1);
write_sequnlock(&xtime_lock);
update_process_times(user_mode(get_irq_regs()));
}
void read_persistent_clock(struct timespec *ts)
{
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 strange errors */
year = 1980;
mon = day = 1;
hour = min = sec = 0;
#ifdef CONFIG_H8300_GETTOD
h8300_gettod (&year, &mon, &day, &hour, &min, &sec);
#endif
if ((year += 1900) < 1970)
year += 100;
ts->tv_sec = mktime(year, mon, day, hour, min, sec);
ts->tv_nsec = 0;
}
void __init time_init(void)
{
h8300_timer_setup();
}
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