From: Matt Mackall <mpm@selenic.com>
Date: Tue, 28 Mar 2006 09:56:01 +0000 (-0800)
Subject: [PATCH] RTC: Remove RTC UIP synchronization on Sparc64
X-Git-Tag: v2.6.17-rc1~271
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3dedf53bb16e27743e5d1f49dbfecf3e5897befa;p=linux-2.6

[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>
---

diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c
index 7d61f1bfd3..e55b5c6ece 100644
--- a/arch/sparc64/kernel/time.c
+++ b/arch/sparc64/kernel/time.c
@@ -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);