rootfs: set PTP's clockClass depending on a clock configuration

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Kconfig

@@ -627,6 +627,10 @@ config TIME_GM
 	  This options selects the White Rabbit Switch as a grandmaster,
 	  i.e. it uses its input channels to track an Atomic or GPS and
 	  claim to be a PTP authoritative source on the network.
+	  The clockClass is set to 6 which designates a clock that is
+	  synchronized to a primary reference time source.
+	  The value of the clockClass can be overridden by the user in
+	  a separate configuration parameter (CONFIG_PTP_OPT_CLOCK_CLASS).
 
 config TIME_FM
 	bool "Free-Running Master"
@@ -634,6 +638,11 @@ config TIME_FM
 	  The White Rabbit Switch pretends to be a master on his PTP
 	  network, but it doesn't sync to an external source. Its own
 	  internal clocks and counters are used to drive timing.
+	  The clockClass is set to 52 which designates a clock that shall not
+	  be a slave to another clock i the domain.
+	  The value of the clockClass can be overridden by the user in
+	  a separate configuration parameter (CONFIG_PTP_OPT_CLOCK_CLASS).
+
 
 config TIME_BC
 	bool "Boundary Clock"
@@ -641,6 +650,9 @@ config TIME_BC
 	  The White Rabbit Switch is a normal PTP Boundary Clock: it is
 	  slave on one of its ports and master on the other ones, according
 	  to the standard Best Master Clock algorithm.
+	  The clockClass is set to 248 which is the default clockClass.
+	  The value of the clockClass can be overridden by the user in
+	  a separate configuration parameter (CONFIG_PTP_OPT_CLOCK_CLASS).
 
 endchoice
 

doc/wrs-user-manual.in

@@ -805,6 +805,9 @@ appropriate way, before the respective service is started.
         external reference; or a normal ``boundary-clock'' (BC) device that
         is slave on some ports and master on other ports.
 
+        The PTP's clockClass is set based on which option is selected.
+        For the GM the clockClass is 6, for the FM is 52, for the BC is 248.
+
 @item CONFIG_PTP_PORT_PARAMS
 @itemx CONFIG_PTP_CUSTOM
 @itemx CONFIG_PTP_REMOTE_CONF

userspace/rootfs_override/wr/bin/assembly_ppsi_conf.sh

@@ -21,8 +21,19 @@ echo "# This file will be overwritten at next boot." >> $OUTPUT_FILE
 #copy top of ppsi.conf
 cat $PRE_FILE >> $OUTPUT_FILE
 
+
 if [ -n "$CONFIG_PTP_OPT_CLOCK_CLASS" ]; then
 	echo clock-class "$CONFIG_PTP_OPT_CLOCK_CLASS" >> $OUTPUT_FILE
+else
+	if [ "$CONFIG_TIME_GM" = "y" ]; then
+		echo clock-class 6 >> $OUTPUT_FILE
+	fi
+	if [ "$CONFIG_TIME_FM" = "y" ]; then
+		echo clock-class 52 >> $OUTPUT_FILE
+	fi
+	if [ "$CONFIG_TIME_BC" = "y" ]; then
+		echo clock-class 248 >> $OUTPUT_FILE
+	fi
 fi
 
 if [ -n "$CONFIG_PTP_OPT_CLOCK_ACCURACY" ]; then
@@ -52,6 +63,9 @@ if [ -n "$CONFIG_PTP_OPT_PRIORITY2" ]; then
 	echo priority2 "$CONFIG_PTP_OPT_PRIORITY2" >> $OUTPUT_FILE
 fi
 
+# 2 new lines
+echo -n -e "\n\n"  >> $OUTPUT_FILE
+
 for i_zero in {01..18};do
 	# unset parametes
 	unset p_name