mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-04 05:50:17 +00:00
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
/*
|
|
* (C) Copyright 2004
|
|
* DAVE Srl
|
|
* http://www.dave-tech.it
|
|
* http://www.wawnet.biz
|
|
* mailto:info@wawnet.biz
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/*
|
|
* S3C44B0 CPU specific code
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <asm/hardware.h>
|
|
#include <rtc.h>
|
|
|
|
int rtc_get (struct rtc_time* tm)
|
|
{
|
|
RTCCON |= 1;
|
|
tm->tm_year = bcd2bin(BCDYEAR);
|
|
tm->tm_mon = bcd2bin(BCDMON);
|
|
tm->tm_wday = bcd2bin(BCDDATE);
|
|
tm->tm_mday = bcd2bin(BCDDAY);
|
|
tm->tm_hour = bcd2bin(BCDHOUR);
|
|
tm->tm_min = bcd2bin(BCDMIN);
|
|
tm->tm_sec = bcd2bin(BCDSEC);
|
|
|
|
if (tm->tm_sec==0) {
|
|
/* we have to re-read the rtc data because of the "one second deviation" problem */
|
|
/* see RTC datasheet for more info about it */
|
|
tm->tm_year = bcd2bin(BCDYEAR);
|
|
tm->tm_mon = bcd2bin(BCDMON);
|
|
tm->tm_mday = bcd2bin(BCDDAY);
|
|
tm->tm_wday = bcd2bin(BCDDATE);
|
|
tm->tm_hour = bcd2bin(BCDHOUR);
|
|
tm->tm_min = bcd2bin(BCDMIN);
|
|
tm->tm_sec = bcd2bin(BCDSEC);
|
|
}
|
|
|
|
RTCCON &= ~1;
|
|
|
|
if(tm->tm_year >= 70)
|
|
tm->tm_year += 1900;
|
|
else
|
|
tm->tm_year += 2000;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int rtc_set (struct rtc_time* tm)
|
|
{
|
|
if(tm->tm_year < 2000)
|
|
tm->tm_year -= 1900;
|
|
else
|
|
tm->tm_year -= 2000;
|
|
|
|
RTCCON |= 1;
|
|
BCDYEAR = bin2bcd(tm->tm_year);
|
|
BCDMON = bin2bcd(tm->tm_mon);
|
|
BCDDAY = bin2bcd(tm->tm_mday);
|
|
BCDDATE = bin2bcd(tm->tm_wday);
|
|
BCDHOUR = bin2bcd(tm->tm_hour);
|
|
BCDMIN = bin2bcd(tm->tm_min);
|
|
BCDSEC = bin2bcd(tm->tm_sec);
|
|
RTCCON &= 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void rtc_reset (void)
|
|
{
|
|
RTCCON |= 1;
|
|
BCDYEAR = 0;
|
|
BCDMON = 0;
|
|
BCDDAY = 0;
|
|
BCDDATE = 0;
|
|
BCDHOUR = 0;
|
|
BCDMIN = 0;
|
|
BCDSEC = 0;
|
|
RTCCON &= 1;
|
|
}
|