+// SPDX-License-Identifier: GPL-2.0+
/*
* (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
+ * David Müller ELSOFT AG Switzerland. d.mueller@elsoft.ch
*/
/*
#include <common.h>
#include <command.h>
-#if defined(CONFIG_RTC_S3C24X0) && (defined(CONFIG_CMD_DATE))
+#if (defined(CONFIG_CMD_DATE))
-#if defined(CONFIG_S3C2400)
-#include <s3c2400.h>
-#elif defined(CONFIG_S3C2410)
-#include <s3c2410.h>
-#endif
+#include <asm/arch/s3c24x0_cpu.h>
#include <rtc.h>
-
-/*#define DEBUG*/
+#include <asm/io.h>
+#include <linux/compiler.h>
typedef enum {
RTC_ENABLE,
static inline void SetRTC_Access(RTC_ACCESS a)
{
- S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC();
+ struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc();
+
switch (a) {
- case RTC_ENABLE:
- rtc->RTCCON |= 0x01; break;
+ case RTC_ENABLE:
+ writeb(readb(&rtc->rtccon) | 0x01, &rtc->rtccon);
+ break;
- case RTC_DISABLE:
- rtc->RTCCON &= ~0x01; break;
+ case RTC_DISABLE:
+ writeb(readb(&rtc->rtccon) & ~0x01, &rtc->rtccon);
+ 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));
-}
-
/* ------------------------------------------------------------------------- */
-int rtc_get (struct rtc_time *tmp)
+int rtc_get(struct rtc_time *tmp)
{
- S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC();
+ struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc();
uchar sec, min, hour, mday, wday, mon, year;
- uchar a_sec,a_min, a_hour, a_date, a_mon, a_year, a_armed;
+ __maybe_unused 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 */
do {
- sec = rtc->BCDSEC;
- min = rtc->BCDMIN;
- hour = rtc->BCDHOUR;
- mday = rtc->BCDDATE;
- wday = rtc->BCDDAY;
- mon = rtc->BCDMON;
- year = rtc->BCDYEAR;
- } while (sec != rtc->BCDSEC);
+ sec = readb(&rtc->bcdsec);
+ min = readb(&rtc->bcdmin);
+ hour = readb(&rtc->bcdhour);
+ mday = readb(&rtc->bcddate);
+ wday = readb(&rtc->bcdday);
+ mon = readb(&rtc->bcdmon);
+ year = readb(&rtc->bcdyear);
+ } while (sec != readb(&rtc->bcdsec));
/* 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;
+ a_sec = readb(&rtc->almsec);
+ a_min = readb(&rtc->almmin);
+ a_hour = readb(&rtc->almhour);
+ a_date = readb(&rtc->almdate);
+ a_mon = readb(&rtc->almmon);
+ a_year = readb(&rtc->almyear);
+ a_armed = readb(&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);
+ 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_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;
+ if (tmp->tm_year < 70)
+ tmp->tm_year += 2000;
else
- tmp->tm_year+=1900;
- tmp->tm_yday = 0;
- tmp->tm_isdst= 0;
+ 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);
+ 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
return 0;
}
-void rtc_set (struct rtc_time *tmp)
+int rtc_set(struct rtc_time *tmp)
{
- S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC();
+ struct s3c24x0_rtc *rtc = s3c24x0_get_base_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);
+ 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);
+ 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;
+ writeb(sec, &rtc->bcdsec);
+ writeb(min, &rtc->bcdmin);
+ writeb(hour, &rtc->bcdhour);
+ writeb(mday, &rtc->bcddate);
+ writeb(wday, &rtc->bcdday);
+ writeb(mon, &rtc->bcdmon);
+ writeb(year, &rtc->bcdyear);
/* disable access to RTC registers */
SetRTC_Access(RTC_DISABLE);
+
+ return 0;
}
-void rtc_reset (void)
+void rtc_reset(void)
{
- S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC();
+ struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc();
- rtc->RTCCON = (rtc->RTCCON & ~0x06) | 0x08;
- rtc->RTCCON &= ~(0x08|0x01);
+ writeb((readb(&rtc->rtccon) & ~0x06) | 0x08, &rtc->rtccon);
+ writeb(readb(&rtc->rtccon) & ~(0x08 | 0x01), &rtc->rtccon);
}
#endif