diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index 5befc9a53..507e7e0db 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,8 @@
+2014-07-07  Pavel Pisa  <pisa@cmp.felk.cvut.cz>
+	    Richard Earnshaw  <rearnsha@arm.com>
+
+	* libc/machine/arm/memchr.S (.arch): Require revision ARMv6t2.
+
 2014-07-07  Corinna Vinschen  <vinschen@redhat.com>
 
 	* configure.in (--enable-newlib-nano-formatted-io): Set to "no"
diff --git a/newlib/libc/machine/arm/memchr.S b/newlib/libc/machine/arm/memchr.S
index 56bfef09a..1ba826825 100644
--- a/newlib/libc/machine/arm/memchr.S
+++ b/newlib/libc/machine/arm/memchr.S
@@ -45,8 +45,10 @@
 @    Make conditional on CPU type
 @    tidy
 
+@ This code requires armv6t2 or later.  Uses Thumb2.
+
 	.syntax unified
-	.arch armv7-a
+	.arch armv6t2
 
 #include "arm_asm.h"