diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index f672df8..9a83724 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -240,6 +240,7 @@
 #define PRID_REV_VR4130		0x0080
 #define PRID_REV_34K_V1_0_2	0x0022
 #define PRID_REV_LOONGSON1B	0x0020
+#define PRID_REV_LOONGSON1C	0x0020	/* Same as Loongson-1B */
 #define PRID_REV_LOONGSON2E	0x0002
 #define PRID_REV_LOONGSON2F	0x0003
 #define PRID_REV_LOONGSON3A_R1	0x0005