diff --git a/include/asm-ppc/processor.h b/include/asm-ppc/processor.h
index a85e2b0..68917c5 100644
--- a/include/asm-ppc/processor.h
+++ b/include/asm-ppc/processor.h
@@ -724,7 +724,8 @@
 #define PVR_440GP_RB	0x40120440
 #define PVR_440GP_RC	0x40120481
 #define PVR_440EP_RA	0x42221850
-#define PVR_440EP_RB	0x422218D3
+#define PVR_440EP_RB	0x422218D3 /* 440EP rev B and 440GR rev A have same PVR */
+#define PVR_440GR_RA	0x422218D3 /* 440EP rev B and 440GR rev A have same PVR */
 #define PVR_440GX_RA	0x51B21850
 #define PVR_440GX_RB	0x51B21851
 #define PVR_440GX_RC	0x51B21892