diff --git a/common_arm/flashmem.h b/common_arm/flashmem.h
index f79de4a58..ec32b62d1 100644
--- a/common_arm/flashmem.h
+++ b/common_arm/flashmem.h
@@ -55,6 +55,7 @@
 #define BUSY_TIMEOUT    200000L
 
 #define WINBOND_MANID       0xEF
+#define WINBOND_16MB_DEVID  0x14
 #define WINBOND_2MB_DEVID   0x11
 #define WINBOND_1MB_DEVID   0x10
 #define WINBOND_512KB_DEVID 0x05