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[PATCH] RTC: Remove RTC UIP synchronization on Sparc64 

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
hifive-unleashed-5.1
Matt Mackall 2006-03-28 01:56:01 -08:00 committed by Linus Torvalds
parent 641f71f5f6
commit 3dedf53bb1
1 changed files with 1 additions and 15 deletions
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16
arch/sparc64/kernel/time.c
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@ -641,23 +641,8 @@ static void __init set_system_time(void)
mon = MSTK_REG_MONTH(mregs);
year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) );
} else {
int i;
/* Dallas 12887 RTC chip. */
/* Stolen from arch/i386/kernel/time.c, see there for
* credits and descriptive comments.
*/
for (i = 0; i < 1000000; i++) {
if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)
break;
udelay(10);
}
for (i = 0; i < 1000000; i++) {
if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
break;
udelay(10);
}
do {
sec = CMOS_READ(RTC_SECONDS);
min = CMOS_READ(RTC_MINUTES);
@ -666,6 +651,7 @@ static void __init set_system_time(void)
mon = CMOS_READ(RTC_MONTH);
year = CMOS_READ(RTC_YEAR);
} while (sec != CMOS_READ(RTC_SECONDS));
if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
BCD_TO_BIN(sec);
BCD_TO_BIN(min);