diff --git a/drivers/marvell/comphy/comphy-cp110.h b/drivers/marvell/comphy/comphy-cp110.h
index 3678c90..27ddcd0 100644
--- a/drivers/marvell/comphy/comphy-cp110.h
+++ b/drivers/marvell/comphy/comphy-cp110.h
@@ -116,6 +116,9 @@
 			(0x1 << SD_EXTERNAL_CONFIG0_MEDIA_MODE_OFFSET)
 
 #define SD_EXTERNAL_CONFIG1_REG			0x4
+#define SD_EXTERNAL_CONFIG1_TX_IDLE_OFFSET	2
+#define SD_EXTERNAL_CONFIG1_TX_IDLE_MASK	\
+			(0x1 << SD_EXTERNAL_CONFIG1_TX_IDLE_OFFSET)
 #define SD_EXTERNAL_CONFIG1_RESET_IN_OFFSET	3
 #define SD_EXTERNAL_CONFIG1_RESET_IN_MASK	\
 			(0x1 << SD_EXTERNAL_CONFIG1_RESET_IN_OFFSET)