diff --git a/ChangeLog b/ChangeLog
index c19f42a..c76e2f3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2011-03-31  Kirk Hays  <khays@hayshaus.com>
+	    Ben Elliston  <bje@gnu.org>
+
+	* config.sub: Add configuration support for Open8 MCU softcore.
+	* testsuite/config-sub.data: Add some simple test cases.
+
 2011-03-23  Joseph Myers  <joseph@codesourcery.com>
 
 	* config.sub: Map ppcbe to powerpc.
diff --git a/config.sub b/config.sub
index 18b17aa..30fdca8 100755
--- a/config.sub
+++ b/config.sub
@@ -286,6 +286,7 @@ case $basic_machine in
 	| nds32 | nds32le | nds32be \
 	| nios | nios2 \
 	| ns16k | ns32k \
+	| open8 \
 	| or32 \
 	| pdp10 | pdp11 | pj | pjl \
 	| powerpc | powerpc64 | powerpc64le | powerpcle \
@@ -394,6 +395,7 @@ case $basic_machine in
 	| nds32-* | nds32le-* | nds32be-* \
 	| nios-* | nios2-* \
 	| none-* | np1-* | ns16k-* | ns32k-* \
+	| open8-* \
 	| orion-* \
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
 	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
diff --git a/testsuite/config-sub.data b/testsuite/config-sub.data
index 2e49a82..b66b1f4 100644
--- a/testsuite/config-sub.data
+++ b/testsuite/config-sub.data
@@ -220,3 +220,5 @@ ppcle-elf			powerpcle-unknown-elf
 ppc-none-elf			powerpc-none-elf
 ppcbe-none-elf			powerpc-none-elf
 ppcle-none-elf			powerpcle-none-elf
+open8				open8-unknown-none
+open8-elf			open8-unknown-elf