boards: px4/fmu-v5 disable px4io in rc.board_defaults

- avoid keeping this kind of logic in the common rcS

ROMFS/px4fmu_common/init.d/rcS

@@ -271,69 +271,62 @@ else
 		param set SYS_AUTOCONFIG 0
 	fi
 
+	#
+	# Set USE_IO flag.
+	#
+	if param compare -s SYS_USE_IO 1
+	then
+		set USE_IO yes
+	fi
+
 	#
 	# Check if PX4IO present and update firmware if needed.
 	# Assumption IOFW set to firmware file and IO_PRESENT = no
 	#
 
-	if [ -f $IOFW ]
+	if [ -f $IOFW -a $USE_IO = yes ]
 	then
-		# Check for the mini using build with px4io fw file
-		# but not a px4IO
-		if ver hwtypecmp V540 V560
+		if px4io checkcrc ${IOFW}
 		then
-			param set SYS_USE_IO 0
+			set IO_PRESENT yes
 		else
-			if px4io checkcrc ${IOFW}
-			then
-				set IO_PRESENT yes
-			else
-				# tune Program PX4IO
-				tune_control play -t 16 # tune 16 = PROG_PX4IO
+			# tune Program PX4IO
+			tune_control play -t 16 # tune 16 = PROG_PX4IO
 
-				if px4io start
+			if px4io start
+			then
+				# Try to safety px4 io so motor outputs don't go crazy.
+				if ! px4io safety_on
 				then
-					# Try to safety px4 io so motor outputs don't go crazy.
-					if ! px4io safety_on
-					then
-						# px4io did not respond to the safety command.
-						px4io stop
-					fi
+					# px4io did not respond to the safety command.
+					px4io stop
 				fi
+			fi
 
-				if px4io forceupdate 14662 ${IOFW}
+			if px4io forceupdate 14662 ${IOFW}
+			then
+				usleep 10000
+				tune_control stop
+				if px4io checkcrc ${IOFW}
 				then
-					usleep 10000
-					tune_control stop
-					if px4io checkcrc ${IOFW}
-					then
-						echo "PX4IO CRC OK after updating"
-						tune_control play -t 17 # tune 17 = PROG_PX4IO_OK
-						set IO_PRESENT yes
-					fi
+					echo "PX4IO CRC OK after updating"
+					tune_control play -t 17 # tune 17 = PROG_PX4IO_OK
+					set IO_PRESENT yes
 				fi
+			fi
 
-				if [ $IO_PRESENT = no ]
-				then
-					echo "PX4IO update failed"
-					tune_control play -t 18 # tune 18 = PROG_PX4IO_ERR
-				fi
+			if [ $IO_PRESENT = no ]
+			then
+				echo "PX4IO update failed"
+				tune_control play -t 18 # tune 18 = PROG_PX4IO_ERR
 			fi
 		fi
-	fi
 
-	#
-	# Set USE_IO flag.
-	#
-	if param compare -s SYS_USE_IO 1
-	then
-		set USE_IO yes
-	fi
-
-	if [ $USE_IO = yes -a $IO_PRESENT = no ]
-	then
-		echo "PX4IO not found"
-		tune_control play error
+		if [ $USE_IO = yes -a $IO_PRESENT = no ]
+		then
+			echo "PX4IO not found"
+			tune_control play error
+		fi
 	fi
 
 	#

boards/px4/fmu-v5/init/rc.board_defaults

@@ -9,6 +9,12 @@ then
 
 fi
 
+# disable px4io on HolyBro mini (V540) and CUAV V5nano (V560)
+if ver hwtypecmp V540 V560
+then
+	param set SYS_USE_IO 0
+fi
+
 set LOGGER_BUF 64
 
 rgbled_pwm start