1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 51af275b3388..af63c75c2001 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -94,6 +94,7 @@ enum {
         /* HOST_CTL bits */
         HOST_RESET              = (1 << 0),  /* reset controller; self-clear */
         HOST_IRQ_EN             = (1 << 1),  /* global IRQ enable */
+        HOST_MRSM               = (1 << 2),  /* MSI Revert to Single Message */
         HOST_AHCI_EN            = (1 << 31), /* AHCI enabled */
 
         /* HOST_CAP bits */
@@ -235,6 +236,7 @@ enum {
                                                         port start (wait until
                                                         error-handling stage) */
         AHCI_HFLAG_MULTI_MSI            = (1 << 16), /* multiple PCI MSIs */
+        AHCI_HFLAG_NO_DEVSLP            = (1 << 17), /* no device sleep */
 
         /* ap->flags bits */