diff --git a/include/linux/libata.h b/include/linux/libata.h
index af66244..9e5db29 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -126,16 +126,19 @@
 
 	ATA_FLAG_SUSPENDED	= (1 << 12), /* port is suspended */
 
+	ATA_FLAG_PIO_LBA48	= (1 << 13), /* Host DMA engine is LBA28 only */
+	ATA_FLAG_IRQ_MASK	= (1 << 14), /* Mask IRQ in PIO xfers */
+
 	ATA_QCFLAG_ACTIVE	= (1 << 1), /* cmd not yet ack'd to scsi lyer */
 	ATA_QCFLAG_SG		= (1 << 3), /* have s/g table? */
 	ATA_QCFLAG_SINGLE	= (1 << 4), /* no s/g, just a single buffer */
 	ATA_QCFLAG_DMAMAP	= ATA_QCFLAG_SG | ATA_QCFLAG_SINGLE,
 
 	/* various lengths of time */
-	ATA_TMOUT_EDD		= 5 * HZ,	/* hueristic */
+	ATA_TMOUT_EDD		= 5 * HZ,	/* heuristic */
 	ATA_TMOUT_PIO		= 30 * HZ,
-	ATA_TMOUT_BOOT		= 30 * HZ,	/* hueristic */
-	ATA_TMOUT_BOOT_QUICK	= 7 * HZ,	/* hueristic */
+	ATA_TMOUT_BOOT		= 30 * HZ,	/* heuristic */
+	ATA_TMOUT_BOOT_QUICK	= 7 * HZ,	/* heuristic */
 	ATA_TMOUT_CDB		= 30 * HZ,
 	ATA_TMOUT_CDB_QUICK	= 5 * HZ,
 	ATA_TMOUT_INTERNAL	= 30 * HZ,