X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Frtc%2Fs3c24x0_rtc.c;h=187620ac896cdbebd1f429989a817588c5a3b712;hb=1a4596601fd395f3afb8f82f3f840c5e00bdd57a;hp=0d3372faca21dda427a2da7c3532a39bfff4ac16;hpb=c351575c226eaad85f12b0d346e762260b263531;p=platform%2Fkernel%2Fu-boot.git diff --git a/drivers/rtc/s3c24x0_rtc.c b/drivers/rtc/s3c24x0_rtc.c index 0d3372f..187620a 100644 --- a/drivers/rtc/s3c24x0_rtc.c +++ b/drivers/rtc/s3c24x0_rtc.c @@ -1,24 +1,8 @@ /* * (C) Copyright 2003 - * David Müller ELSOFT AG Switzerland. d.mueller@elsoft.ch + * 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 + * SPDX-License-Identifier: GPL-2.0+ */ /* @@ -30,15 +14,11 @@ #if (defined(CONFIG_CMD_DATE)) -#if defined(CONFIG_S3C2400) -#include -#elif defined(CONFIG_S3C2410) -#include -#endif +#include #include - -/*#define DEBUG*/ +#include +#include typedef enum { RTC_ENABLE, @@ -48,122 +28,114 @@ typedef enum { 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; } -int 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); @@ -171,12 +143,12 @@ int rtc_set (struct rtc_time *tmp) 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