1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index b1750007c8dc..feb127ef4e4e 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -210,6 +210,9 @@ enum {
         AHCI_HFLAG_NO_SNTF              = (1 << 12), /* no sntf */
         AHCI_HFLAG_NO_FPDMA_AA          = (1 << 13), /* no FPDMA AA */
         AHCI_HFLAG_YES_FBS              = (1 << 14), /* force FBS cap on */
+        AHCI_HFLAG_DELAY_ENGINE         = (1 << 15), /* do not start engine on
+                                                        port start (wait until
+                                                        error-handling stage) */
 
         /* ap->flags bits */