diff --git a/drivers/rtc/s3c24x0_rtc.c b/drivers/rtc/s3c24x0_rtc.c
index e10db9a..1ce34e3 100644
--- a/drivers/rtc/s3c24x0_rtc.c
+++ b/drivers/rtc/s3c24x0_rtc.c
@@ -37,6 +37,7 @@
 #endif
 
 #include <rtc.h>
+#include <asm/io.h>
 
 /*#define	DEBUG*/
 
@@ -48,112 +49,113 @@
 
 static inline void SetRTC_Access(RTC_ACCESS a)
 {
-	S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC();
-	switch (a) {
-		case RTC_ENABLE:
-			rtc->RTCCON |= 0x01; break;
+	struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc();
 
-		case RTC_DISABLE:
-			rtc->RTCCON &= ~0x01; break;
+	switch (a) {
+	case RTC_ENABLE:
+		writeb(readb(&rtc->RTCCON) | 0x01, &rtc->RTCCON);
+		break;
+
+	case RTC_DISABLE:
+		writeb(readb(&rtc->RTCCON) & ~0x01, &rtc->RTCCON);
+		break;
 	}
 }
 
 /* ------------------------------------------------------------------------- */
 
-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;
+	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);
@@ -161,12 +163,12 @@
 	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