diff --git a/include/dwmmc.h b/include/dwmmc.h
index bc1d6e3..0f9d51b 100644
--- a/include/dwmmc.h
+++ b/include/dwmmc.h
@@ -103,6 +103,8 @@
 #define DWMCI_CTYPE_8BIT	(1 << 16)
 
 /* Status Register */
+#define DWMCI_FIFO_EMPTY	(1 << 2)
+#define DWMCI_FIFO_FULL		(1 << 3)
 #define DWMCI_BUSY		(1 << 9)
 #define DWMCI_FIFO_MASK		0x1fff
 #define DWMCI_FIFO_SHIFT	17