/* Set the time. Get the time_in_secs which is the number of seconds since Jan 1970 and set the RTC registers
* based on this value.
*/
int rtc_set(struct rtc_time *tmp)
{
unsigned long remain, days, hrs, mins, secs;
pr_stamp();
if (tmp == NULL) {
puts("Error setting the date/time\n");
return -1;
}
rtc_init();
wait_for_complete();
/* Calculate number of seconds this incoming time represents */
remain = mktime(tmp->tm_year, tmp->tm_mon, tmp->tm_mday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
/* Figure out how many days since epoch */
days = remain / NUM_SECS_IN_DAY;
/* From the remaining secs, compute the hrs(0-23), mins(0-59) and secs(0-59) */
remain = remain % NUM_SECS_IN_DAY;
hrs = remain / NUM_SECS_IN_HR;
remain = remain % NUM_SECS_IN_HR;
mins = remain / NUM_SECS_IN_MIN;
secs = remain % NUM_SECS_IN_MIN;
/* Encode these time values into our RTC_STAT register */
bfin_write_RTC_STAT(SET_ALARM(days, hrs, mins, secs));
return 0;
}
void __init time_init(void)
{
#ifdef CONFIG_RTC_DRV_BFIN
/* [#2663] hack to filter junk RTC values that would cause
* userspace to have to deal with time values greater than
* 2^31 seconds (which uClibc cannot cope with yet)
*/
if ((bfin_read_RTC_STAT() & 0xC0000000) == 0xC0000000) {
printk(KERN_NOTICE "bfin-rtc: invalid date; resetting\n");
bfin_write_RTC_STAT(0);
}
#endif
time_sched_init(timer_interrupt);
}
void __init time_init(void)
{
time_t secs_since_1970 = (365 * 37 + 9) * 24 * 60 * 60; /* 1 Jan 2007 */
#ifdef CONFIG_RTC_DRV_BFIN
/* [#2663] hack to filter junk RTC values that would cause
* userspace to have to deal with time values greater than
* 2^31 seconds (which uClibc cannot cope with yet)
*/
if ((bfin_read_RTC_STAT() & 0xC0000000) == 0xC0000000) {
printk(KERN_NOTICE "bfin-rtc: invalid date; resetting\n");
bfin_write_RTC_STAT(0);
}
#endif
/* Initialize xtime. From now on, xtime is updated with timer interrupts */
xtime.tv_sec = secs_since_1970;
xtime.tv_nsec = 0;
wall_to_monotonic.tv_sec = -xtime.tv_sec;
time_sched_init(timer_interrupt);
}
