[ mvebu ] Switch fake-hwclock to hardware RTC AR-159 (#1946)

* [ mvebu ] Switch fake-hwclock to hardware RTC AR-159

* remove fake-hwclock dpkg
* tweak /lib/udev/hwclock-set to be executed even if systemd present
* move helios4 bsp file under mvebu folder for tidiness

config/sources/families/include/mvebu-helios4.inc

@@ -42,26 +42,26 @@ family_tweaks_bsp()
 
 	### Fancontrol tweaks
 	# copy hwmon rules to fix device mapping
-	install -m 644 $SRC/packages/bsp/helios4/90-helios4-hwmon.rules $destination/etc/udev/rules.d/
+	install -m 644 $SRC/packages/bsp/mvebu/helios4/90-helios4-hwmon.rules $destination/etc/udev/rules.d/
 
 	# copy fancontrol config
-	install -m 644 $SRC/packages/bsp/helios4/fancontrol_pwm-fan.conf $destination/etc/fancontrol
-	install -m 644 $SRC/packages/bsp/helios4/fancontrol.service $destination/etc/systemd/system/
+	install -m 644 $SRC/packages/bsp/mvebu/helios4/fancontrol_pwm-fan.conf $destination/etc/fancontrol
+	install -m 644 $SRC/packages/bsp/mvebu/helios4/fancontrol.service $destination/etc/systemd/system/
 
 	### Mdadm tweaks
 
 	# copy mdadm-fault-led script and set right permission
-	install -m 755 $SRC/packages/bsp/helios4/mdadm-fault-led.sh $destination/usr/sbin
+	install -m 755 $SRC/packages/bsp/mvebu/helios4/mdadm-fault-led.sh $destination/usr/sbin
 
 	### Ethernet tweaks
 
 	# copy and enable helios4-wol.service
-	install -m 644 $SRC/packages/bsp/helios4/helios4-wol.service $destination/lib/systemd/system/
+	install -m 644 $SRC/packages/bsp/mvebu/helios4/helios4-wol.service $destination/lib/systemd/system/
 
 	### Other tweaks
 
 	# add custom motd default conf file
-        install -m 644 $SRC/packages/bsp/helios4/armbian-motd $destination/etc/default/
+        install -m 644 $SRC/packages/bsp/mvebu/helios4/armbian-motd $destination/etc/default/
 
     # create modules file
 	if [[ $BRANCH == dev && -n $MODULES_DEV ]]; then

config/sources/families/mvebu.conf

@@ -53,5 +53,12 @@ family_tweaks()
 	# execute specific tweaks function if present
 	[[ $(type -t family_tweaks_s) == function ]] && family_tweaks_s
 
-	chroot $SDCARD /bin/bash -c "apt-get -y -qq remove --auto-remove linux-sound-base alsa-base alsa-utils bluez>/dev/null 2>&1"
+	# Tweak to force SYS time to be synced from RTC at startup
+	install -m 755 $SRC/packages/bsp/mvebu/hwclock-set $SDCARD/lib/udev/
+
+	if [[ $DISTRIBUTION == "Ubuntu" ]]; then
+		chroot $SDCARD /bin/bash -c "apt-get -y -qq remove --auto-remove fake-hwclock linux-sound-base alsa-base alsa-utils bluez"
+	else
+		chroot $SDCARD /bin/bash -c "apt-get -y -qq remove --auto-remove fake-hwclock alsa-utils bluez"
+	fi
 }

packages/bsp/mvebu/hwclock-set

@@ -0,0 +1,38 @@
+#!/bin/sh
+# Reset the System Clock to UTC if the hardware clock from which it
+# was copied by the kernel was in localtime.
+
+dev=$1
+
+# Armbian Tweak - Execute even if systemd is present
+#if [ -e /run/systemd/system ] ; then
+#    exit 0
+#fi
+
+if [ -e /run/udev/hwclock-set ]; then
+    exit 0
+fi
+
+if [ -f /etc/default/rcS ] ; then
+    . /etc/default/rcS
+fi
+
+# These defaults are user-overridable in /etc/default/hwclock
+BADYEAR=no
+HWCLOCKACCESS=yes
+HWCLOCKPARS=
+HCTOSYS_DEVICE=rtc0
+if [ -f /etc/default/hwclock ] ; then
+    . /etc/default/hwclock
+fi
+
+if [ yes = "$BADYEAR" ] ; then
+    /sbin/hwclock --rtc=$dev --systz --badyear
+    /sbin/hwclock --rtc=$dev --hctosys --badyear
+else
+    /sbin/hwclock --rtc=$dev --systz
+    /sbin/hwclock --rtc=$dev --hctosys
+fi
+
+# Note 'touch' may not be available in initramfs
+> /run/udev/hwclock-set