diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index f1fea96..b93e64d 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -219,6 +219,7 @@
 	void __iomem *		gen_block;
 	void __iomem *		notifier_clear_block;
 	u8			flags;
+	int			last_issue_ncq;
 };
 
 struct nv_host_priv {
@@ -1260,6 +1261,7 @@
 {
 	struct nv_adma_port_priv *pp = qc->ap->private_data;
 	void __iomem *mmio = pp->ctl_block;
+	int curr_ncq = (qc->tf.protocol == ATA_PROT_NCQ);
 
 	VPRINTK("ENTER\n");
 
@@ -1274,6 +1276,14 @@
 	/* write append register, command tag in lower 8 bits
 	   and (number of cpbs to append -1) in top 8 bits */
 	wmb();
+
+	if(curr_ncq != pp->last_issue_ncq) {
+	   	/* Seems to need some delay before switching between NCQ and non-NCQ
+		   commands, else we get command timeouts and such. */
+		udelay(20);
+		pp->last_issue_ncq = curr_ncq;
+	}
+
 	writew(qc->tag, mmio + NV_ADMA_APPEND);
 
 	DPRINTK("Issued tag %u\n",qc->tag);