diff --git a/include/linux/libata.h b/include/linux/libata.h
index 9b6ba19..578f98c 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -223,6 +223,7 @@
 	ATA_FLAG_ACPI_SATA	= (1 << 17), /* need native SATA ACPI layout */
 	ATA_FLAG_AN		= (1 << 18), /* controller supports AN */
 	ATA_FLAG_PMP		= (1 << 19), /* controller supports PMP */
+	ATA_FLAG_FPDMA_AUX	= (1 << 20), /* controller supports H2DFIS aux field */
 	ATA_FLAG_EM		= (1 << 21), /* driver supports enclosure
 					      * management */
 	ATA_FLAG_SW_ACTIVITY	= (1 << 22), /* driver supports sw activity