diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index 45fd71d..8493b02 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -1026,7 +1026,8 @@
 	}
 
 	/* perform recovery */
-	ata_do_eh(ap, ahci_softreset, ahci_hardreset, ahci_postreset);
+	ata_do_eh(ap, ata_std_prereset, ahci_softreset, ahci_hardreset,
+		  ahci_postreset);
 }
 
 static void ahci_post_internal_cmd(struct ata_queued_cmd *qc)
diff --git a/drivers/scsi/libata-bmdma.c b/drivers/scsi/libata-bmdma.c
index 6d30d2c..4bc0537 100644
--- a/drivers/scsi/libata-bmdma.c
+++ b/drivers/scsi/libata-bmdma.c
@@ -695,6 +695,7 @@
 /**
  *	ata_bmdma_drive_eh - Perform EH with given methods for BMDMA controller
  *	@ap: port to handle error for
+ *	@prereset: prereset method (can be NULL)
  *	@softreset: softreset method (can be NULL)
  *	@hardreset: hardreset method (can be NULL)
  *	@postreset: postreset method (can be NULL)
@@ -710,8 +711,9 @@
  *	LOCKING:
  *	Kernel thread context (may sleep)
  */
-void ata_bmdma_drive_eh(struct ata_port *ap, ata_reset_fn_t softreset,
-			ata_reset_fn_t hardreset, ata_postreset_fn_t postreset)
+void ata_bmdma_drive_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
+			ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
+			ata_postreset_fn_t postreset)
 {
 	struct ata_host_set *host_set = ap->host_set;
 	struct ata_eh_context *ehc = &ap->eh_context;
@@ -759,7 +761,7 @@
 		ata_eh_thaw_port(ap);
 
 	/* PIO and DMA engines have been stopped, perform recovery */
-	ata_do_eh(ap, softreset, hardreset, postreset);
+	ata_do_eh(ap, prereset, softreset, hardreset, postreset);
 }
 
 /**
@@ -779,7 +781,8 @@
 	if (sata_scr_valid(ap))
 		hardreset = sata_std_hardreset;
 
-	ata_bmdma_drive_eh(ap, ata_std_softreset, hardreset, ata_std_postreset);
+	ata_bmdma_drive_eh(ap, ata_std_prereset, ata_std_softreset, hardreset,
+			   ata_std_postreset);
 }
 
 /**
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 4823ece..2531a70 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -2525,6 +2525,90 @@
 	return sata_phy_debounce(ap, params);
 }
 
+static void ata_wait_spinup(struct ata_port *ap)
+{
+	struct ata_eh_context *ehc = &ap->eh_context;
+	unsigned long end, secs;
+	int rc;
+
+	/* first, debounce phy if SATA */
+	if (ap->cbl == ATA_CBL_SATA) {
+		rc = sata_phy_debounce(ap, sata_deb_timing_eh);
+
+		/* if debounced successfully and offline, no need to wait */
+		if ((rc == 0 || rc == -EOPNOTSUPP) && ata_port_offline(ap))
+			return;
+	}
+
+	/* okay, let's give the drive time to spin up */
+	end = ehc->i.hotplug_timestamp + ATA_SPINUP_WAIT * HZ / 1000;
+	secs = ((end - jiffies) + HZ - 1) / HZ;
+
+	if (time_after(jiffies, end))
+		return;
+
+	if (secs > 5)
+		ata_port_printk(ap, KERN_INFO, "waiting for device to spin up "
+				"(%lu secs)\n", secs);
+
+	schedule_timeout_uninterruptible(end - jiffies);
+}
+
+/**
+ *	ata_std_prereset - prepare for reset
+ *	@ap: ATA port to be reset
+ *
+ *	@ap is about to be reset.  Initialize it.
+ *
+ *	LOCKING:
+ *	Kernel thread context (may sleep)
+ *
+ *	RETURNS:
+ *	0 on success, -errno otherwise.
+ */
+int ata_std_prereset(struct ata_port *ap)
+{
+	struct ata_eh_context *ehc = &ap->eh_context;
+	const unsigned long *timing;
+	int rc;
+
+	/* hotplug? */
+	if (ehc->i.flags & ATA_EHI_HOTPLUGGED) {
+		if (ap->flags & ATA_FLAG_HRST_TO_RESUME)
+			ehc->i.action |= ATA_EH_HARDRESET;
+		if (ap->flags & ATA_FLAG_SKIP_D2H_BSY)
+			ata_wait_spinup(ap);
+	}
+
+	/* if we're about to do hardreset, nothing more to do */
+	if (ehc->i.action & ATA_EH_HARDRESET)
+		return 0;
+
+	/* if SATA, resume phy */
+	if (ap->cbl == ATA_CBL_SATA) {
+		if (ap->flags & ATA_FLAG_LOADING)
+			timing = sata_deb_timing_boot;
+		else
+			timing = sata_deb_timing_eh;
+
+		rc = sata_phy_resume(ap, timing);
+		if (rc && rc != -EOPNOTSUPP) {
+			/* phy resume failed */
+			ata_port_printk(ap, KERN_WARNING, "failed to resume "
+					"link for reset (errno=%d)\n", rc);
+			return rc;
+		}
+	}
+
+	/* Wait for !BSY if the controller can wait for the first D2H
+	 * Reg FIS and we don't know that no device is attached.
+	 */
+	if (!(ap->flags & ATA_FLAG_SKIP_D2H_BSY) && !ata_port_offline(ap))
+		ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT);
+
+	return 0;
+}
+
 /**
  *	ata_std_probeinit - initialize probing
  *	@ap: port to be probed
@@ -5840,6 +5924,7 @@
 EXPORT_SYMBOL_GPL(__sata_phy_reset);
 EXPORT_SYMBOL_GPL(ata_bus_reset);
 EXPORT_SYMBOL_GPL(ata_std_probeinit);
+EXPORT_SYMBOL_GPL(ata_std_prereset);
 EXPORT_SYMBOL_GPL(ata_std_softreset);
 EXPORT_SYMBOL_GPL(sata_std_hardreset);
 EXPORT_SYMBOL_GPL(ata_std_postreset);
diff --git a/drivers/scsi/libata-eh.c b/drivers/scsi/libata-eh.c
index 9173d8f..0e66f14 100644
--- a/drivers/scsi/libata-eh.c
+++ b/drivers/scsi/libata-eh.c
@@ -1318,20 +1318,58 @@
 	}
 }
 
-static int ata_eh_reset(struct ata_port *ap, ata_reset_fn_t softreset,
+static int ata_eh_reset(struct ata_port *ap,
+			ata_prereset_fn_t prereset, ata_reset_fn_t softreset,
 			ata_reset_fn_t hardreset, ata_postreset_fn_t postreset)
 {
 	struct ata_eh_context *ehc = &ap->eh_context;
 	unsigned int classes[ATA_MAX_DEVICES];
 	int tries = ATA_EH_RESET_TRIES;
+	unsigned int action;
 	ata_reset_fn_t reset;
 	int i, rc;
 
+	/* Determine which reset to use and record in ehc->i.action.
+	 * prereset() may examine and modify it.
+	 */
+	action = ehc->i.action;
+	ehc->i.action &= ~ATA_EH_RESET_MASK;
 	if (softreset && (!hardreset || (!sata_set_spd_needed(ap) &&
-					 !(ehc->i.action & ATA_EH_HARDRESET))))
-		reset = softreset;
+					 !(action & ATA_EH_HARDRESET))))
+		ehc->i.action |= ATA_EH_SOFTRESET;
 	else
+		ehc->i.action |= ATA_EH_HARDRESET;
+
+	if (prereset) {
+		rc = prereset(ap);
+		if (rc) {
+			ata_port_printk(ap, KERN_ERR,
+					"prereset failed (errno=%d)\n", rc);
+			return rc;
+		}
+	}
+
+	/* prereset() might have modified ehc->i.action */
+	if (ehc->i.action & ATA_EH_HARDRESET)
 		reset = hardreset;
+	else if (ehc->i.action & ATA_EH_SOFTRESET)
+		reset = softreset;
+	else {
+		/* prereset told us not to reset, bang classes and return */
+		for (i = 0; i < ATA_MAX_DEVICES; i++)
+			classes[i] = ATA_DEV_NONE;
+		return 0;
+	}
+
+	/* did prereset() screw up?  if so, fix up to avoid oopsing */
+	if (!reset) {
+		ata_port_printk(ap, KERN_ERR, "BUG: prereset() requested "
+				"invalid reset type\n");
+		if (softreset)
+			reset = softreset;
+		else
+			reset = hardreset;
+	}
 
  retry:
 	ata_port_printk(ap, KERN_INFO, "%s resetting port\n",
@@ -1424,6 +1462,7 @@
 /**
  *	ata_eh_recover - recover host port after error
  *	@ap: host port to recover
+ *	@prereset: prereset method (can be NULL)
  *	@softreset: softreset method (can be NULL)
  *	@hardreset: hardreset method (can be NULL)
  *	@postreset: postreset method (can be NULL)
@@ -1440,8 +1479,8 @@
  *	RETURNS:
  *	0 on success, -errno on failure.
  */
-static int ata_eh_recover(struct ata_port *ap, ata_reset_fn_t softreset,
-			  ata_reset_fn_t hardreset,
+static int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
+			  ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
 			  ata_postreset_fn_t postreset)
 {
 	struct ata_eh_context *ehc = &ap->eh_context;
@@ -1469,7 +1508,8 @@
 	if (ehc->i.action & ATA_EH_RESET_MASK) {
 		ata_eh_freeze_port(ap);
 
-		rc = ata_eh_reset(ap, softreset, hardreset, postreset);
+		rc = ata_eh_reset(ap, prereset, softreset, hardreset,
+				  postreset);
 		if (rc) {
 			ata_port_printk(ap, KERN_ERR,
 					"reset failed, giving up\n");
@@ -1586,6 +1626,7 @@
 /**
  *	ata_do_eh - do standard error handling
  *	@ap: host port to handle error for
+ *	@prereset: prereset method (can be NULL)
  *	@softreset: softreset method (can be NULL)
  *	@hardreset: hardreset method (can be NULL)
  *	@postreset: postreset method (can be NULL)
@@ -1595,11 +1636,12 @@
  *	LOCKING:
  *	Kernel thread context (may sleep).
  */
-void ata_do_eh(struct ata_port *ap, ata_reset_fn_t softreset,
-	       ata_reset_fn_t hardreset, ata_postreset_fn_t postreset)
+void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
+	       ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
+	       ata_postreset_fn_t postreset)
 {
 	ata_eh_autopsy(ap);
 	ata_eh_report(ap);
-	ata_eh_recover(ap, softreset, hardreset, postreset);
+	ata_eh_recover(ap, prereset, softreset, hardreset, postreset);
 	ata_eh_finish(ap);
 }
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index 4c76f05..26d7c54 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -912,7 +912,8 @@
 	}
 
 	/* perform recovery */
-	ata_do_eh(ap, sil24_softreset, sil24_hardreset, ata_std_postreset);
+	ata_do_eh(ap, ata_std_prereset, sil24_softreset, sil24_hardreset,
+		  ata_std_postreset);
 }
 
 static void sil24_post_internal_cmd(struct ata_queued_cmd *qc)