diff --git a/[refs] b/[refs]
index 505ec905a608..46a89db837d7 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e82cbdb9a3791f781462c9d00e3486e8fb7e58a8
+refs/heads/master: 852ee16a914fb3ada2f81e222677c04defc2f15f
diff --git a/trunk/drivers/scsi/libata-core.c b/trunk/drivers/scsi/libata-core.c
index 061b0b6544cc..3acf56200d87 100644
--- a/trunk/drivers/scsi/libata-core.c
+++ b/trunk/drivers/scsi/libata-core.c
@@ -2132,9 +2132,11 @@ void ata_bus_reset(struct ata_port *ap)
 static int sata_phy_resume(struct ata_port *ap)
 {
 	unsigned long timeout = jiffies + (HZ * 5);
-	u32 sstatus;
+	u32 scontrol, sstatus;
 
-	scr_write_flush(ap, SCR_CONTROL, 0x300);
+	scontrol = scr_read(ap, SCR_CONTROL);
+	scontrol = (scontrol & 0x0f0) | 0x300;
+	scr_write_flush(ap, SCR_CONTROL, scontrol);
 
 	/* Wait for phy to become ready, if necessary. */
 	do {
@@ -2247,10 +2249,14 @@ int ata_std_softreset(struct ata_port *ap, int verbose, unsigned int *classes)
  */
 int sata_std_hardreset(struct ata_port *ap, int verbose, unsigned int *class)
 {
+	u32 scontrol;
+
 	DPRINTK("ENTER\n");
 
 	/* Issue phy wake/reset */
-	scr_write_flush(ap, SCR_CONTROL, 0x301);
+	scontrol = scr_read(ap, SCR_CONTROL);
+	scontrol = (scontrol & 0x0f0) | 0x301;
+	scr_write_flush(ap, SCR_CONTROL, scontrol);
 
 	/*
 	 * Couldn't find anything in SATA I/II specs, but AHCI-1.1