Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>master
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/*
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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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#include <bcd.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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