1 files changed, 2 insertions, 1 deletions

diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index 95e40c1e8ed1..f21b7c04e95a 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -197,6 +197,7 @@
 #define PRID_REV_VR4181A        0x0070  /* Same as VR4122 */
 #define PRID_REV_VR4130         0x0080
 #define PRID_REV_34K_V1_0_2     0x0022
+#define PRID_REV_LOONGSON1B     0x0020
 #define PRID_REV_LOONGSON2E     0x0002
 #define PRID_REV_LOONGSON2F     0x0003
 
@@ -261,7 +262,7 @@ enum cpu_type_enum {
          */
         CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
         CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
-        CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, CPU_M14KC,
+        CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, CPU_LOONGSON1, CPU_M14KC,
 
         /*
          * MIPS64 class processors