X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fmips%2Fjmr3927%2Fcommon%2Frtc_ds1742.c;h=e6561345d12a345cec239a4daec921b98bf3dce5;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=1ae4318e1358fa6d8d02f0c26c2676743d827c47;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/arch/mips/jmr3927/common/rtc_ds1742.c b/arch/mips/jmr3927/common/rtc_ds1742.c
index 1ae4318e1..e6561345d 100644
--- a/arch/mips/jmr3927/common/rtc_ds1742.c
+++ b/arch/mips/jmr3927/common/rtc_ds1742.c
@@ -41,11 +41,11 @@
 #include <linux/types.h>
 #include <linux/time.h>
 #include <linux/rtc.h>
+#include <linux/ds1742rtc.h>
 
 #include <asm/time.h>
 #include <asm/addrspace.h>
 
-#include <asm/jmr3927/ds1742rtc.h>
 #include <asm/debug.h>
 
 #define	EPOCH		2000
@@ -57,16 +57,19 @@ rtc_ds1742_get_time(void)
 {
 	unsigned int year, month, day, hour, minute, second;
 	unsigned int century;
-
-	CMOS_WRITE(RTC_READ, RTC_CONTROL);
-	second = BCD2BIN(CMOS_READ(RTC_SECONDS) & RTC_SECONDS_MASK);
-	minute = BCD2BIN(CMOS_READ(RTC_MINUTES));
-	hour = BCD2BIN(CMOS_READ(RTC_HOURS));
-	day = BCD2BIN(CMOS_READ(RTC_DATE));
-	month = BCD2BIN(CMOS_READ(RTC_MONTH));
-	year = BCD2BIN(CMOS_READ(RTC_YEAR));
-	century = BCD2BIN(CMOS_READ(RTC_CENTURY) & RTC_CENTURY_MASK);
-	CMOS_WRITE(0, RTC_CONTROL);
+	unsigned long flags;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+	rtc_write(RTC_READ, RTC_CONTROL);
+	second = BCD2BIN(rtc_read(RTC_SECONDS) & RTC_SECONDS_MASK);
+	minute = BCD2BIN(rtc_read(RTC_MINUTES));
+	hour = BCD2BIN(rtc_read(RTC_HOURS));
+	day = BCD2BIN(rtc_read(RTC_DATE));
+	month = BCD2BIN(rtc_read(RTC_MONTH));
+	year = BCD2BIN(rtc_read(RTC_YEAR));
+	century = BCD2BIN(rtc_read(RTC_CENTURY) & RTC_CENTURY_MASK);
+	rtc_write(0, RTC_CONTROL);
+	spin_unlock_irqrestore(&rtc_lock, flags);
 
 	year += century * 100;
 
@@ -81,17 +84,19 @@ rtc_ds1742_set_time(unsigned long t)
 	u8 year, month, day, hour, minute, second;
 	u8 cmos_year, cmos_month, cmos_day, cmos_hour, cmos_minute, cmos_second;
 	int cmos_century;
+	unsigned long flags;
 
-	CMOS_WRITE(RTC_READ, RTC_CONTROL);
-	cmos_second = (u8)(CMOS_READ(RTC_SECONDS) & RTC_SECONDS_MASK);
-	cmos_minute = (u8)CMOS_READ(RTC_MINUTES);
-	cmos_hour = (u8)CMOS_READ(RTC_HOURS);
-	cmos_day = (u8)CMOS_READ(RTC_DATE);
-	cmos_month = (u8)CMOS_READ(RTC_MONTH);
-	cmos_year = (u8)CMOS_READ(RTC_YEAR);
-	cmos_century = CMOS_READ(RTC_CENTURY) & RTC_CENTURY_MASK;
+	spin_lock_irqsave(&rtc_lock, flags);
+	rtc_write(RTC_READ, RTC_CONTROL);
+	cmos_second = (u8)(rtc_read(RTC_SECONDS) & RTC_SECONDS_MASK);
+	cmos_minute = (u8)rtc_read(RTC_MINUTES);
+	cmos_hour = (u8)rtc_read(RTC_HOURS);
+	cmos_day = (u8)rtc_read(RTC_DATE);
+	cmos_month = (u8)rtc_read(RTC_MONTH);
+	cmos_year = (u8)rtc_read(RTC_YEAR);
+	cmos_century = rtc_read(RTC_CENTURY) & RTC_CENTURY_MASK;
 
-	CMOS_WRITE(RTC_WRITE, RTC_CONTROL);
+	rtc_write(RTC_WRITE, RTC_CONTROL);
 
 	/* convert */
 	to_tm(t, &tm);
@@ -99,18 +104,18 @@ rtc_ds1742_set_time(unsigned long t)
 	/* check each field one by one */
 	year = BIN2BCD(tm.tm_year - EPOCH);
 	if (year != cmos_year) {
-		CMOS_WRITE(year,RTC_YEAR);
+		rtc_write(year,RTC_YEAR);
 	}
 
 	month = BIN2BCD(tm.tm_mon);
 	if (month != (cmos_month & 0x1f)) {
-		CMOS_WRITE((month & 0x1f) | (cmos_month & ~0x1f),RTC_MONTH);
+		rtc_write((month & 0x1f) | (cmos_month & ~0x1f),RTC_MONTH);
 	}
 
 	day = BIN2BCD(tm.tm_mday);
 	if (day != cmos_day) {
 
-		CMOS_WRITE(day, RTC_DATE);
+		rtc_write(day, RTC_DATE);
 	}
 
 	if (cmos_hour & 0x40) {
@@ -125,20 +130,21 @@ rtc_ds1742_set_time(unsigned long t)
 		/* 24 hour format */
 		hour = BIN2BCD(tm.tm_hour) & 0x3f;
 	}
-	if (hour != cmos_hour) CMOS_WRITE(hour, RTC_HOURS);
+	if (hour != cmos_hour) rtc_write(hour, RTC_HOURS);
 
 	minute = BIN2BCD(tm.tm_min);
 	if (minute !=  cmos_minute) {
-		CMOS_WRITE(minute, RTC_MINUTES);
+		rtc_write(minute, RTC_MINUTES);
 	}
 
 	second = BIN2BCD(tm.tm_sec);
 	if (second !=  cmos_second) {
-		CMOS_WRITE(second & RTC_SECONDS_MASK,RTC_SECONDS);
+		rtc_write(second & RTC_SECONDS_MASK,RTC_SECONDS);
 	}
 
 	/* RTC_CENTURY and RTC_CONTROL share same address... */
-	CMOS_WRITE(cmos_century, RTC_CONTROL);
+	rtc_write(cmos_century, RTC_CONTROL);
+	spin_unlock_irqrestore(&rtc_lock, flags);
 
 	return 0;
 }
@@ -153,13 +159,13 @@ rtc_ds1742_init(unsigned long base)
 	db_assert((rtc_base & 0xe0000000) == KSEG1);
 
 	/* set the function pointers */
-	rtc_get_time = rtc_ds1742_get_time;
-	rtc_set_time = rtc_ds1742_set_time;
+	rtc_mips_get_time = rtc_ds1742_get_time;
+	rtc_mips_set_time = rtc_ds1742_set_time;
 
 	/* clear oscillator stop bit */
-	CMOS_WRITE(RTC_READ, RTC_CONTROL);
-	cmos_second = (u8)(CMOS_READ(RTC_SECONDS) & RTC_SECONDS_MASK);
-	CMOS_WRITE(RTC_WRITE, RTC_CONTROL);
-	CMOS_WRITE(cmos_second, RTC_SECONDS); /* clear msb */
-	CMOS_WRITE(0, RTC_CONTROL);
+	rtc_write(RTC_READ, RTC_CONTROL);
+	cmos_second = (u8)(rtc_read(RTC_SECONDS) & RTC_SECONDS_MASK);
+	rtc_write(RTC_WRITE, RTC_CONTROL);
+	rtc_write(cmos_second, RTC_SECONDS); /* clear msb */
+	rtc_write(0, RTC_CONTROL);
 }