From 2b79934c4f4dc62f043534729102c9dd2e211da7 Mon Sep 17 00:00:00 2001
From: Richard Purdie <rpurdie@rpsys.net>
Date: Sun, 2 Sep 2007 14:18:47 +0000
Subject: [PATCH] initscipts: Improve RTC handling so /etc/timestamp is used if
 its timestamp is 1 day or more greater than the existing time. Also set the
 timestamp on halt/reboot so devices without a hardware RTC (or with a broken
 RTC like the PXA) can benefit.

---
 .../initscripts/initscripts-1.0/bootmisc.sh   | 20 ++++++++++---------
 .../initscripts/initscripts-1.0/save-rtc.sh   |  4 +++-
 packages/initscripts/initscripts_1.0.bb       |  2 +-
 3 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/packages/initscripts/initscripts-1.0/bootmisc.sh b/packages/initscripts/initscripts-1.0/bootmisc.sh
index 799cdca12b..2a40e0c410 100755
--- a/packages/initscripts/initscripts-1.0/bootmisc.sh
+++ b/packages/initscripts/initscripts-1.0/bootmisc.sh
@@ -61,16 +61,18 @@ fi
 #
 /sbin/ldconfig
 
-# 
-# Recover the time, if there is a time file (first boot only)
-# If not, set system clock from hardware clock
-#
+# Set the system clock from hardware clock
+# If the timestamp is 1 day or more recent than the current time,
+# use the timestamp instead.
+/etc/init.d/hwclock.sh start
 if test -e /etc/timestamp
 then
-	date -s `cat /etc/timestamp`
-	mv -f /etc/timestamp /etc/timestamp.done
-	/etc/init.d/hwclock.sh stop
-else
-	/etc/init.d/hwclock.sh start
+	SYSTEMDATE=`date "+%Y%m%d"`
+	TIMESTAMP=`cat /etc/timestamp | awk '{ print substr($0,9,4) substr($0,1,4);}'`
+        NEEDUPDATE=`expr \( $TIMESTAMP \> $SYSTEMDATE \)`                                                 
+        if [ $NEEDUPDATE -eq 1 ]; then 
+		date `cat /etc/timestamp`
+		/etc/init.d/hwclock.sh stop
+	fi
 fi
 : exit 0
diff --git a/packages/initscripts/initscripts-1.0/save-rtc.sh b/packages/initscripts/initscripts-1.0/save-rtc.sh
index 4e0e270701..e786073051 100644
--- a/packages/initscripts/initscripts-1.0/save-rtc.sh
+++ b/packages/initscripts/initscripts-1.0/save-rtc.sh
@@ -1,3 +1,5 @@
 #! /bin/sh
-#FIXME read timestamp handling for systems where RTC doesn't survive a reboot
 /etc/init.d/hwclock.sh stop
+
+# Update the timestamp
+date +%2m%2d%2H%2M%Y > /etc/timestamp
diff --git a/packages/initscripts/initscripts_1.0.bb b/packages/initscripts/initscripts_1.0.bb
index 3d2f0f50b4..06a12c04a5 100644
--- a/packages/initscripts/initscripts_1.0.bb
+++ b/packages/initscripts/initscripts_1.0.bb
@@ -4,7 +4,7 @@ PRIORITY = "required"
 DEPENDS = "makedevs"
 RDEPENDS = "makedevs"
 LICENSE = "GPL"
-PR = "r99"
+PR = "r100"
 
 SRC_URI = "file://functions \
            file://halt \
-- 
2.39.5