diff --git a/arch/Config.in.csky b/arch/Config.in.csky
index 1aede81282..ebde7fe476 100644
--- a/arch/Config.in.csky
+++ b/arch/Config.in.csky
@@ -27,6 +27,10 @@ config BR2_CSKY_VDSP
 	bool "Enable VDSP enhanced instructions Co-processor"
 	depends on BR2_CSKY_FPU
 
+config BR2_GCC_TARGET_FLOAT_ABI
+	default "soft"		if !BR2_CSKY_FPU
+	default "hard"		if BR2_CSKY_FPU
+
 config BR2_ARCH
 	default "csky"