diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 2f48fe9..93f2b7a2 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -234,6 +234,7 @@
 #define NVREG_XMITCTL_HOST_SEMA_MASK	0x0000f000
 #define NVREG_XMITCTL_HOST_SEMA_ACQ	0x0000f000
 #define NVREG_XMITCTL_HOST_LOADED	0x00004000
+#define NVREG_XMITCTL_TX_PATH_EN	0x01000000
 	NvRegTransmitterStatus = 0x088,
 #define NVREG_XMITSTAT_BUSY	0x01
 
@@ -249,6 +250,7 @@
 #define NVREG_OFFLOAD_NORMAL	RX_NIC_BUFSIZE
 	NvRegReceiverControl = 0x094,
 #define NVREG_RCVCTL_START	0x01
+#define NVREG_RCVCTL_RX_PATH_EN	0x01000000
 	NvRegReceiverStatus = 0x98,
 #define NVREG_RCVSTAT_BUSY	0x01
 
@@ -1169,16 +1171,21 @@
 {
 	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
+	u32 rx_ctrl = readl(base + NvRegReceiverControl);
 
 	dprintk(KERN_DEBUG "%s: nv_start_rx\n", dev->name);
 	/* Already running? Stop it. */
-	if (readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) {
-		writel(0, base + NvRegReceiverControl);
+	if ((readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) && !np->mac_in_use) {
+		rx_ctrl &= ~NVREG_RCVCTL_START;
+		writel(rx_ctrl, base + NvRegReceiverControl);
 		pci_push(base);
 	}
 	writel(np->linkspeed, base + NvRegLinkSpeed);
 	pci_push(base);
-	writel(NVREG_RCVCTL_START, base + NvRegReceiverControl);
+        rx_ctrl |= NVREG_RCVCTL_START;
+        if (np->mac_in_use)
+		rx_ctrl &= ~NVREG_RCVCTL_RX_PATH_EN;
+	writel(rx_ctrl, base + NvRegReceiverControl);
 	dprintk(KERN_DEBUG "%s: nv_start_rx to duplex %d, speed 0x%08x.\n",
 				dev->name, np->duplex, np->linkspeed);
 	pci_push(base);
@@ -1186,39 +1193,59 @@
 
 static void nv_stop_rx(struct net_device *dev)
 {
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
+	u32 rx_ctrl = readl(base + NvRegReceiverControl);
 
 	dprintk(KERN_DEBUG "%s: nv_stop_rx\n", dev->name);
-	writel(0, base + NvRegReceiverControl);
+	if (!np->mac_in_use)
+		rx_ctrl &= ~NVREG_RCVCTL_START;
+	else
+		rx_ctrl |= NVREG_RCVCTL_RX_PATH_EN;
+	writel(rx_ctrl, base + NvRegReceiverControl);
 	reg_delay(dev, NvRegReceiverStatus, NVREG_RCVSTAT_BUSY, 0,
 			NV_RXSTOP_DELAY1, NV_RXSTOP_DELAY1MAX,
 			KERN_INFO "nv_stop_rx: ReceiverStatus remained busy");
 
 	udelay(NV_RXSTOP_DELAY2);
-	writel(0, base + NvRegLinkSpeed);
+	if (!np->mac_in_use)
+		writel(0, base + NvRegLinkSpeed);
 }
 
 static void nv_start_tx(struct net_device *dev)
 {
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
+	u32 tx_ctrl = readl(base + NvRegTransmitterControl);
 
 	dprintk(KERN_DEBUG "%s: nv_start_tx\n", dev->name);
-	writel(NVREG_XMITCTL_START, base + NvRegTransmitterControl);
+	tx_ctrl |= NVREG_XMITCTL_START;
+	if (np->mac_in_use)
+		tx_ctrl &= ~NVREG_XMITCTL_TX_PATH_EN;
+	writel(tx_ctrl, base + NvRegTransmitterControl);
 	pci_push(base);
 }
 
 static void nv_stop_tx(struct net_device *dev)
 {
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
+	u32 tx_ctrl = readl(base + NvRegTransmitterControl);
 
 	dprintk(KERN_DEBUG "%s: nv_stop_tx\n", dev->name);
-	writel(0, base + NvRegTransmitterControl);
+	if (!np->mac_in_use)
+		tx_ctrl &= ~NVREG_XMITCTL_START;
+	else
+		tx_ctrl |= NVREG_XMITCTL_TX_PATH_EN;
+	writel(tx_ctrl, base + NvRegTransmitterControl);
 	reg_delay(dev, NvRegTransmitterStatus, NVREG_XMITSTAT_BUSY, 0,
 			NV_TXSTOP_DELAY1, NV_TXSTOP_DELAY1MAX,
 			KERN_INFO "nv_stop_tx: TransmitterStatus remained busy");
 
 	udelay(NV_TXSTOP_DELAY2);
-	writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
+	if (!np->mac_in_use)
+		writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV,
+		       base + NvRegTransmitPoll);
 }
 
 static void nv_txrx_reset(struct net_device *dev)
@@ -4148,20 +4175,6 @@
 	return 0;
 }
 
-/* Indicate to mgmt unit whether driver is loaded or not */
-static void nv_mgmt_driver_loaded(struct net_device *dev, int loaded)
-{
-	u8 __iomem *base = get_hwbase(dev);
-	u32 tx_ctrl;
-
-	tx_ctrl = readl(base + NvRegTransmitterControl);
-	if (loaded)
-		tx_ctrl |= NVREG_XMITCTL_HOST_LOADED;
-	else
-		tx_ctrl &= ~NVREG_XMITCTL_HOST_LOADED;
-	writel(tx_ctrl, base + NvRegTransmitterControl);
-}
-
 static int nv_open(struct net_device *dev)
 {
 	struct fe_priv *np = netdev_priv(dev);
@@ -4659,33 +4672,24 @@
 	writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus);
 
 	if (id->driver_data & DEV_HAS_MGMT_UNIT) {
-		writel(0x1, base + 0x204); pci_push(base);
-		msleep(500);
 		/* management unit running on the mac? */
-		np->mac_in_use = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST;
-		if (np->mac_in_use) {
-			u32 mgmt_sync;
-			/* management unit setup the phy already? */
-			mgmt_sync = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK;
-			if (mgmt_sync == NVREG_XMITCTL_SYNC_NOT_READY) {
-				if (!nv_mgmt_acquire_sema(dev)) {
-					for (i = 0; i < 5000; i++) {
-						msleep(1);
-						mgmt_sync = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK;
-						if (mgmt_sync == NVREG_XMITCTL_SYNC_NOT_READY)
-							continue;
-						if (mgmt_sync == NVREG_XMITCTL_SYNC_PHY_INIT)
-							phyinitialized = 1;
-						break;
+		if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_PHY_INIT) {
+			np->mac_in_use = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST;
+			dprintk(KERN_INFO "%s: mgmt unit is running. mac in use %x.\n", pci_name(pci_dev), np->mac_in_use);
+			for (i = 0; i < 5000; i++) {
+				msleep(1);
+				if (nv_mgmt_acquire_sema(dev)) {
+					/* management unit setup the phy already? */
+					if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) ==
+					    NVREG_XMITCTL_SYNC_PHY_INIT) {
+						/* phy is inited by mgmt unit */
+						phyinitialized = 1;
+						dprintk(KERN_INFO "%s: Phy already initialized by mgmt unit.\n", pci_name(pci_dev));
+					} else {
+						/* we need to init the phy */
 					}
-				} else {
-					/* we need to init the phy */
+					break;
 				}
-			} else if (mgmt_sync == NVREG_XMITCTL_SYNC_PHY_INIT) {
-				/* phy is inited by SMU */
-				phyinitialized = 1;
-			} else {
-				/* we need to init the phy */
 			}
 		}
 	}
@@ -4724,10 +4728,12 @@
 	if (!phyinitialized) {
 		/* reset it */
 		phy_init(dev);
-	}
-
-	if (id->driver_data & DEV_HAS_MGMT_UNIT) {
-		nv_mgmt_driver_loaded(dev, 1);
+	} else {
+		/* see if it is a gigabit phy */
+		u32 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
+		if (mii_status & PHY_GIGABIT) {
+			np->gigabit = PHY_GIGABIT;
+		}
 	}
 
 	/* set default link speed settings */
@@ -4749,8 +4755,6 @@
 out_error:
 	if (phystate_orig)
 		writel(phystate|NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl);
-	if (np->mac_in_use)
-		nv_mgmt_driver_loaded(dev, 0);
 	pci_set_drvdata(pci_dev, NULL);
 out_freering:
 	free_rings(dev);
@@ -4780,9 +4784,6 @@
 	writel(np->orig_mac[0], base + NvRegMacAddrA);
 	writel(np->orig_mac[1], base + NvRegMacAddrB);
 
-	if (np->mac_in_use)
-		nv_mgmt_driver_loaded(dev, 0);
-
 	/* free all structures */
 	free_rings(dev);
 	iounmap(get_hwbase(dev));