kernel

/*
 * Copyright (C) 2008, Guennadi Liakhovetski <lg@denx.de>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <rtc.h>
#include <spi.h>
#include <fsl_pmic.h>

int rtc_get(struct rtc_time *rtc)
{
    u32 day1, day2, time;
    int tim, i = 0;

    do {
        day1 = pmic_reg_read(REG_RTC_DAY);
        if (day1 < 0)
            return -1;

        time = pmic_reg_read(REG_RTC_TIME);
        if (time < 0)
            return -1;

        day2 = pmic_reg_read(REG_RTC_DAY);
        if (day2 < 0)
            return -1;

    } while (day1 != day2 && i++ < 3);

    tim = day1 * 86400 + time;

    to_tm(tim, rtc);

    rtc->tm_yday = 0;
    rtc->tm_isdst = 0;

    return 0;
}

int rtc_set(struct rtc_time *rtc)
{
    u32 time, day;

    time = mktime(rtc->tm_year, rtc->tm_mon, rtc->tm_mday,
              rtc->tm_hour, rtc->tm_min, rtc->tm_sec);
    day = time / 86400;
    time %= 86400;

    pmic_reg_write(REG_RTC_DAY, day);
    pmic_reg_write(REG_RTC_TIME, time);

    return 0;
}

void rtc_reset(void)
{
}