diff --git a/ChangeLog b/ChangeLog
index b03be3d6bfe..70e64d01fdb 100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -11070,3 +11070,5 @@
 	  (2015-11-03).
 	* arch/arm/src/samv7:  Add a call to can_txready() to the MCAN driver
 	  (2015-11-03).
+	* arch/arm/src/samv7:  Add MPU and protected build support (2015-11-06).
+
diff --git a/arch b/arch
index b7e93fa2b1d..73ffdd85cb1 160000
--- a/arch
+++ b/arch
@@ -1 +1 @@
-Subproject commit b7e93fa2b1d96c73c8f7eef7204e524c854d0b4e
+Subproject commit 73ffdd85cb13b7a129f11248a2db7dcc2f483724