* Patches by David Müller, 12 Jun 2003:
- rewrite of the S3C24X0 register definitions stuff
- "driver" for the built-in S3C24X0 RTC
* Patches by Yuli Barcohen, 12 Jun 2003:
- Add MII support and Ethernet PHY initialization for MPC8260ADS board
- Fix incorrect SIUMCR initialisation caused by wrong Hard Reset
configuration word supplied by FPGA on some MPC8260ADS boards
* Patch by Pantelis Antoniou, 10 Jun 2003:
Unify status LED interface
diff --git a/rtc/s3c24x0_rtc.c b/rtc/s3c24x0_rtc.c
new file mode 100644
index 0000000..bf8008d
--- /dev/null
+++ b/rtc/s3c24x0_rtc.c
@@ -0,0 +1,178 @@
+/*
+ * (C) Copyright 2003
+ * David Müller ELSOFT AG Switzerland. d.mueller@elsoft.ch
+ *
+ * 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
+ */
+
+/*
+ * Date & Time support for the built-in Samsung S3C24X0 RTC
+ */
+
+#include <common.h>
+#include <command.h>
+
+#if defined(CONFIG_RTC_S3C24X0) && (CONFIG_COMMANDS & CFG_CMD_DATE)
+
+#if defined(CONFIG_S3C2400)
+#include <s3c2400.h>
+#elif defined(CONFIG_S3C2410)
+#include <s3c2410.h>
+#endif
+
+#include <rtc.h>
+
+/*#define DEBUG*/
+
+typedef enum {
+ RTC_ENABLE,
+ RTC_DISABLE
+} RTC_ACCESS;
+
+
+static inline void SetRTC_Access(RTC_ACCESS a)
+{
+ S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC();
+ switch (a) {
+ case RTC_ENABLE:
+ rtc->RTCCON |= 0x01; break;
+
+ case RTC_DISABLE:
+ rtc->RTCCON &= ~0x01; break;
+ }
+}
+
+static unsigned bcd2bin (uchar n)
+{
+ return ((((n >> 4) & 0x0F) * 10) + (n & 0x0F));
+}
+
+static unsigned char bin2bcd (unsigned int n)
+{
+ return (((n / 10) << 4) | (n % 10));
+}
+
+/* ------------------------------------------------------------------------- */
+
+void rtc_get (struct rtc_time *tmp)
+{
+ S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC();
+ uchar sec, min, hour, mday, wday, mon, year;
+ uchar a_sec,a_min, a_hour, a_date, a_mon, a_year, a_armed;
+
+ /* enable access to RTC registers */
+ SetRTC_Access(RTC_ENABLE);
+
+ /* read RTC registers */
+ sec = rtc->BCDSEC;
+ min = rtc->BCDMIN;
+ hour = rtc->BCDHOUR;
+ mday = rtc->BCDDATE;
+ wday = rtc->BCDDAY;
+ mon = rtc->BCDMON;
+ year = rtc->BCDYEAR;
+
+ /* read ALARM registers */
+ a_sec = rtc->ALMSEC;
+ a_min = rtc->ALMMIN;
+ a_hour = rtc->ALMHOUR;
+ a_date = rtc->ALMDATE;
+ a_mon = rtc->ALMMON;
+ a_year = rtc->ALMYEAR;
+ a_armed = rtc->RTCALM;
+
+ /* disable access to RTC registers */
+ SetRTC_Access(RTC_DISABLE);
+
+#ifdef RTC_DEBUG
+ printf ( "Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x "
+ "hr: %02x min: %02x sec: %02x\n",
+ year, mon, mday, wday,
+ hour, min, sec);
+ printf ( "Alarms: %02x: year: %02x month: %02x date: %02x hour: %02x min: %02x sec: %02x\n",
+ a_armed,
+ a_year, a_mon, a_date,
+ a_hour, a_min, a_sec);
+#endif
+
+ tmp->tm_sec = bcd2bin(sec & 0x7F);
+ tmp->tm_min = bcd2bin(min & 0x7F);
+ tmp->tm_hour = bcd2bin(hour & 0x3F);
+ tmp->tm_mday = bcd2bin(mday & 0x3F);
+ tmp->tm_mon = bcd2bin(mon & 0x1F);
+ tmp->tm_year = bcd2bin(year);
+ tmp->tm_wday = bcd2bin(wday & 0x07);
+ if(tmp->tm_year<70)
+ tmp->tm_year+=2000;
+ else
+ tmp->tm_year+=1900;
+ tmp->tm_yday = 0;
+ tmp->tm_isdst= 0;
+#ifdef RTC_DEBUG
+ printf ( "Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
+ tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
+ tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
+#endif
+}
+
+void rtc_set (struct rtc_time *tmp)
+{
+ S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC();
+ uchar sec, min, hour, mday, wday, mon, year;
+
+#ifdef RTC_DEBUG
+ printf ( "Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
+ tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
+ tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
+#endif
+ year = bin2bcd(tmp->tm_year % 100);
+ mon = bin2bcd(tmp->tm_mon);
+ wday = bin2bcd(tmp->tm_wday);
+ mday = bin2bcd(tmp->tm_mday);
+ hour = bin2bcd(tmp->tm_hour);
+ min = bin2bcd(tmp->tm_min);
+ sec = bin2bcd(tmp->tm_sec);
+
+ /* enable access to RTC registers */
+ SetRTC_Access(RTC_ENABLE);
+
+ /* write RTC registers */
+ rtc->BCDSEC = sec;
+ rtc->BCDMIN = min;
+ rtc->BCDHOUR = hour;
+ rtc->BCDDATE = mday;
+ rtc->BCDDAY = wday;
+ rtc->BCDMON = mon;
+ rtc->BCDYEAR = year;
+
+ /* disable access to RTC registers */
+ SetRTC_Access(RTC_DISABLE);
+}
+
+void rtc_reset (void)
+{
+ S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC();
+
+ rtc->RTCCON = (rtc->RTCCON & ~0x06) | 0x08;
+ rtc->RTCCON &= ~0x08;
+}
+
+/* ------------------------------------------------------------------------- */
+
+#endif /* CONFIG_RTC_S3C24X0 && CFG_CMD_DATE */