Call firmware wipe script during factory wipe if it exists

clobber-state

 #!/bin/sh
 
 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This script can be called during startup to trash the stateful partition
 # and possibly reset the other root filesystem
 
 . /usr/sbin/chromeos-common.sh
@@ skipping 83 matching lines @@
   touch /mnt/stateful_partition/.developer_mode
 fi
 
 # Flush linux caches.
 sync
 echo 3 > /proc/sys/vm/drop_caches
 
 # Do any board specific wiping here.
 # board_factory_wipe.sh will be installed by the board overlay if necessary.
 if [ "$FACTORY_WIPE" = "factory" ]; then
+  FIRMWARE_WIPE='/usr/sbin/firmware-factory-wipe'
+  if [ -x "${FIRMWARE_WIPE}" ]; then
+    ${FIRMWARE_WIPE}
+  fi
+
   BOARD_WIPE=/usr/sbin/board_factory_wipe.sh
   if [ -x "${BOARD_WIPE}" ]; then
     ${BOARD_WIPE}
   fi
 fi
 
 /sbin/shutdown -r now
 sleep 1d  # Wait for shutdown