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https://source.denx.de/u-boot/u-boot.git
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885fc78c28
Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com> Acked-by: Stefan Roese <sr@denx.de>
101 lines
2.3 KiB
C
101 lines
2.3 KiB
C
/*
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* (C) Copyright 2004
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* DAVE Srl
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* http://www.dave-tech.it
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* http://www.wawnet.biz
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* mailto:info@wawnet.biz
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* S3C44B0 CPU specific code
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*/
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#include <common.h>
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#include <command.h>
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#include <asm/hardware.h>
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#include <rtc.h>
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int rtc_get (struct rtc_time* tm)
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{
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RTCCON |= 1;
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tm->tm_year = bcd2bin(BCDYEAR);
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tm->tm_mon = bcd2bin(BCDMON);
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tm->tm_wday = bcd2bin(BCDDATE);
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tm->tm_mday = bcd2bin(BCDDAY);
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tm->tm_hour = bcd2bin(BCDHOUR);
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tm->tm_min = bcd2bin(BCDMIN);
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tm->tm_sec = bcd2bin(BCDSEC);
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if (tm->tm_sec==0) {
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/* we have to re-read the rtc data because of the "one second deviation" problem */
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/* see RTC datasheet for more info about it */
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tm->tm_year = bcd2bin(BCDYEAR);
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tm->tm_mon = bcd2bin(BCDMON);
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tm->tm_mday = bcd2bin(BCDDAY);
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tm->tm_wday = bcd2bin(BCDDATE);
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tm->tm_hour = bcd2bin(BCDHOUR);
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tm->tm_min = bcd2bin(BCDMIN);
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tm->tm_sec = bcd2bin(BCDSEC);
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}
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RTCCON &= ~1;
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if(tm->tm_year >= 70)
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tm->tm_year += 1900;
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else
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tm->tm_year += 2000;
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return 0;
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}
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int rtc_set (struct rtc_time* tm)
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{
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if(tm->tm_year < 2000)
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tm->tm_year -= 1900;
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else
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tm->tm_year -= 2000;
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RTCCON |= 1;
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BCDYEAR = bin2bcd(tm->tm_year);
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BCDMON = bin2bcd(tm->tm_mon);
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BCDDAY = bin2bcd(tm->tm_mday);
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BCDDATE = bin2bcd(tm->tm_wday);
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BCDHOUR = bin2bcd(tm->tm_hour);
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BCDMIN = bin2bcd(tm->tm_min);
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BCDSEC = bin2bcd(tm->tm_sec);
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RTCCON &= 1;
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return 0;
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}
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void rtc_reset (void)
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{
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RTCCON |= 1;
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BCDYEAR = 0;
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BCDMON = 0;
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BCDDAY = 0;
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BCDDATE = 0;
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BCDHOUR = 0;
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BCDMIN = 0;
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BCDSEC = 0;
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RTCCON &= 1;
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}
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