diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 053e1c3..e9ead5f 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -231,6 +231,8 @@
 cflags-$(toolchain-xpa)			+= -DTOOLCHAIN_SUPPORTS_XPA
 toolchain-crc				:= $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc)
 cflags-$(toolchain-crc)			+= -DTOOLCHAIN_SUPPORTS_CRC
+toolchain-dsp				:= $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mdsp)
+cflags-$(toolchain-dsp)			+= -DTOOLCHAIN_SUPPORTS_DSP
 
 #
 # Firmware support