diff --git a/include/linux/dm9000.h b/include/linux/dm9000.h
index 0008e2a..ea530fd 100644
--- a/include/linux/dm9000.h
+++ b/include/linux/dm9000.h
@@ -19,6 +19,7 @@
 #define DM9000_PLATF_8BITONLY	(0x0001)
 #define DM9000_PLATF_16BITONLY	(0x0002)
 #define DM9000_PLATF_32BITONLY	(0x0004)
+#define DM9000_PLATF_EXT_PHY	(0x0008)
 
 /* platfrom data for platfrom device structure's platfrom_data field */