diff --git a/poky/meta/conf/machine/include/tune-cortexm3.inc b/poky/meta/conf/machine/include/tune-cortexm3.inc
new file mode 100644
index 0000000..a6cb566
--- /dev/null
+++ b/poky/meta/conf/machine/include/tune-cortexm3.inc
@@ -0,0 +1,14 @@
+#
+# Tune Settings for Cortex-M3
+#
+DEFAULTTUNE ?= "cortexm3"
+
+TUNEVALID[cortexm3] = "Enable Cortex-M3 specific processor optimizations"
+TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'cortexm3', ' -mcpu=cortex-m3', '', d)}"
+
+require conf/machine/include/arm/arch-armv7m.inc
+
+AVAILTUNES                            += "cortexm3"
+ARMPKGARCH:tune-cortexm3               = "cortexm3"
+TUNE_FEATURES:tune-cortexm3            = "${TUNE_FEATURES:tune-armv7m} cortexm3"
+PACKAGE_EXTRA_ARCHS:tune-cortexm3      = "${PACKAGE_EXTRA_ARCHS:tune-armv7m} cortexm3"