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[MIPS] JMR3927 build fixes for the RTC code.
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle committed Apr 19, 2006
1 parent 67cbeb3 commit ba8990f
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Showing 3 changed files with 45 additions and 32 deletions.
60 changes: 30 additions & 30 deletions arch/mips/jmr3927/common/rtc_ds1742.c
Original file line number Diff line number Diff line change
Expand Up @@ -60,15 +60,15 @@ rtc_ds1742_get_time(void)
unsigned long flags;

spin_lock_irqsave(&rtc_lock, flags);
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);
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;
Expand All @@ -87,35 +87,35 @@ rtc_ds1742_set_time(unsigned long t)
unsigned long flags;

spin_lock_irqsave(&rtc_lock, 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;
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);

/* 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) {
Expand All @@ -130,20 +130,20 @@ 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;
Expand All @@ -163,9 +163,9 @@ rtc_ds1742_init(unsigned long base)
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);
}
13 changes: 13 additions & 0 deletions include/asm-mips/ds1742.h
Original file line number Diff line number Diff line change
@@ -0,0 +1,13 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2006 by Ralf Baechle (ralf@linux-mips.org)
*/
#ifndef _ASM_DS1742_H
#define _ASM_DS1742_H

#include <ds1742.h>

#endif /* _ASM_DS1742_H */
4 changes: 2 additions & 2 deletions include/asm-mips/mach-jmr3927/ds1742.h
Original file line number Diff line number Diff line change
Expand Up @@ -3,14 +3,14 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2003 by Ralf Baechle
* Copyright (C) 2003, 06 by Ralf Baechle
*/
#ifndef __ASM_MACH_JMR3927_DS1742_H
#define __ASM_MACH_JMR3927_DS1742_H

#include <asm/jmr3927/jmr3927.h>

#define rtc_read(reg) (jmr3927_nvram_in(addr))
#define rtc_read(reg) (jmr3927_nvram_in(reg))
#define rtc_write(data, reg) (jmr3927_nvram_out((data),(reg)))

#endif /* __ASM_MACH_JMR3927_DS1742_H */

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