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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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+/*
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+ * S3C44B0 CPU specific code
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+ */
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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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+
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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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+
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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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+
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+ RTCCON &= ~1;
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+
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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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+
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+ return 0;
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+}
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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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+
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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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+
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+ return 0;
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+}
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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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+
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