Add tools for RUTX platform on 6.1 kernel

6.1/target/linux/ipq40xx/base-files/etc/init.d/sysfixtime

@@ -0,0 +1,34 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2013-2014 OpenWrt.org
+
+START=00
+STOP=90
+
+RTC_DEV=/dev/rtc0
+HWCLOCK=/sbin/hwclock
+
+boot() {
+#	start && exit 0
+
+	local maxtime="$(maxtime)"
+	local curtime="$(date +%s)"
+	[ $curtime -lt $maxtime ] && date -s @$maxtime
+}
+
+start() {
+	boot
+}
+
+stop() {
+	[ -e "$RTC_DEV" ] && [ -e "$HWCLOCK" ] && $HWCLOCK -w -u -f $RTC_DEV && \
+		logger -t sysfixtime "saved '$(date)' to $RTC_DEV"
+}
+
+maxtime() {
+	local file newest
+
+	for file in $( find /etc -type f ) ; do
+		[ -z "$newest" -o "$newest" -ot "$file" ] && newest=$file
+	done
+	[ "$newest" ] && date -r "$newest" +%s
+}