diff --git a/drivers/net/ethernet/altera/altera_tse.h b/drivers/net/ethernet/altera/altera_tse.h
index 9b640c8fbc28b..e2feee87180a8 100644
--- a/drivers/net/ethernet/altera/altera_tse.h
+++ b/drivers/net/ethernet/altera/altera_tse.h
@@ -120,6 +120,17 @@
 #define MAC_CMDCFG_DISABLE_READ_TIMEOUT_GET(v)	GET_BIT_VALUE(v, 27)
 #define MAC_CMDCFG_CNT_RESET_GET(v)		GET_BIT_VALUE(v, 31)
 
+/* SGMII PCS register addresses
+ */
+#define SGMII_PCS_SCRATCH	0x10
+#define SGMII_PCS_REV		0x11
+#define SGMII_PCS_LINK_TIMER_0	0x12
+#define SGMII_PCS_LINK_TIMER_1	0x13
+#define SGMII_PCS_IF_MODE	0x14
+#define SGMII_PCS_DIS_READ_TO	0x15
+#define SGMII_PCS_READ_TO	0x16
+#define SGMII_PCS_SW_RESET_TIMEOUT 100 /* usecs */
+
 /* MDIO registers within MAC register Space
  */
 struct altera_tse_mdio {
diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
index 8e92084342622..d8bca949d810d 100644
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -37,6 +37,7 @@
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/mii.h>
 #include <linux/netdevice.h>
 #include <linux/of_device.h>
 #include <linux/of_mdio.h>
@@ -96,6 +97,27 @@ static inline u32 tse_tx_avail(struct altera_tse_private *priv)
 	return priv->tx_cons + priv->tx_ring_size - priv->tx_prod - 1;
 }
 
+/* PCS Register read/write functions
+ */
+static u16 sgmii_pcs_read(struct altera_tse_private *priv, int regnum)
+{
+	return csrrd32(priv->mac_dev,
+		       tse_csroffs(mdio_phy0) + regnum * 4) & 0xffff;
+}
+
+static void sgmii_pcs_write(struct altera_tse_private *priv, int regnum,
+				u16 value)
+{
+	csrwr32(value, priv->mac_dev, tse_csroffs(mdio_phy0) + regnum * 4);
+}
+
+/* Check PCS scratch memory */
+static int sgmii_pcs_scratch_test(struct altera_tse_private *priv, u16 value)
+{
+	sgmii_pcs_write(priv, SGMII_PCS_SCRATCH, value);
+	return (sgmii_pcs_read(priv, SGMII_PCS_SCRATCH) == value);
+}
+
 /* MDIO specific functions
  */
 static int altera_tse_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
@@ -1083,6 +1105,66 @@ static void tse_set_rx_mode(struct net_device *dev)
 	spin_unlock(&priv->mac_cfg_lock);
 }
 
+/* Initialise (if necessary) the SGMII PCS component
+ */
+static int init_sgmii_pcs(struct net_device *dev)
+{
+	struct altera_tse_private *priv = netdev_priv(dev);
+	int n;
+	unsigned int tmp_reg = 0;
+
+	if (priv->phy_iface != PHY_INTERFACE_MODE_SGMII)
+		return 0; /* Nothing to do, not in SGMII mode */
+
+	/* The TSE SGMII PCS block looks a little like a PHY, it is
+	 * mapped into the zeroth MDIO space of the MAC and it has
+	 * ID registers like a PHY would.  Sadly this is often
+	 * configured to zeroes, so don't be surprised if it does
+	 * show 0x00000000.
+	 */
+
+	if (sgmii_pcs_scratch_test(priv, 0x0000) &&
+		sgmii_pcs_scratch_test(priv, 0xffff) &&
+		sgmii_pcs_scratch_test(priv, 0xa5a5) &&
+		sgmii_pcs_scratch_test(priv, 0x5a5a)) {
+		netdev_info(dev, "PCS PHY ID: 0x%04x%04x\n",
+				sgmii_pcs_read(priv, MII_PHYSID1),
+				sgmii_pcs_read(priv, MII_PHYSID2));
+	} else {
+		netdev_err(dev, "SGMII PCS Scratch memory test failed.\n");
+		return -ENOMEM;
+	}
+
+	/* Starting on page 5-29 of the MegaCore Function User Guide
+	 * Set SGMII Link timer to 1.6ms
+	 */
+	sgmii_pcs_write(priv, SGMII_PCS_LINK_TIMER_0, 0x0D40);
+	sgmii_pcs_write(priv, SGMII_PCS_LINK_TIMER_1, 0x03);
+
+	/* Enable SGMII Interface and Enable SGMII Auto Negotiation */
+	sgmii_pcs_write(priv, SGMII_PCS_IF_MODE, 0x3);
+
+	/* Enable Autonegotiation */
+	tmp_reg = sgmii_pcs_read(priv, MII_BMCR);
+	tmp_reg |= (BMCR_SPEED1000 | BMCR_FULLDPLX | BMCR_ANENABLE);
+	sgmii_pcs_write(priv, MII_BMCR, tmp_reg);
+
+	/* Reset PCS block */
+	tmp_reg |= BMCR_RESET;
+	sgmii_pcs_write(priv, MII_BMCR, tmp_reg);
+	for (n = 0; n < SGMII_PCS_SW_RESET_TIMEOUT; n++) {
+		if (!(sgmii_pcs_read(priv, MII_BMCR) & BMCR_RESET)) {
+			netdev_info(dev, "SGMII PCS block initialised OK\n");
+			return 0;
+		}
+		udelay(1);
+	}
+
+	/* We failed to reset the block, return a timeout */
+	netdev_err(dev, "SGMII PCS block reset failed.\n");
+	return -ETIMEDOUT;
+}
+
 /* Open and initialize the interface
  */
 static int tse_open(struct net_device *dev)
@@ -1107,6 +1189,15 @@ static int tse_open(struct net_device *dev)
 		netdev_warn(dev, "TSE revision %x\n", priv->revision);
 
 	spin_lock(&priv->mac_cfg_lock);
+	/* no-op if MAC not operating in SGMII mode*/
+	ret = init_sgmii_pcs(dev);
+	if (ret) {
+		netdev_err(dev,
+			   "Cannot init the SGMII PCS (error: %d)\n", ret);
+		spin_unlock(&priv->mac_cfg_lock);
+		goto phy_error;
+	}
+
 	ret = reset_mac(priv);
 	/* Note that reset_mac will fail if the clocks are gated by the PHY
 	 * due to the PHY being put into isolation or power down mode.