diff --git a/toolchain/Config.in b/toolchain/Config.in
index 6e91ab756cd4..6e2856b38ae1 100644
--- a/toolchain/Config.in
+++ b/toolchain/Config.in
@@ -855,6 +855,11 @@ config BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on !BR2_sparc
 	depends on !(BR2_arc && !BR2_ARC_ATOMIC_EXT)
 
+config BR2_TOOLCHAIN_HAS_ATOMIC_TEST_AND_SET
+	bool
+	default y
+	depends on !(BR2_arc && !BR2_ARC_ATOMIC_EXT)
+
 # The availability of __sync for 8-byte types on ARM is somewhat
 # complicated:
 #