[forcedeth] Clear the MII link status register on link status changes

eesprit · mcb30 · commit 9215b7f4c0e2 · 2011-03-20T12:36:09.000Z
Signed-off-by: Michael Brown &lt;mcb30@ipxe.org&gt;
diff --git a/src/drivers/net/forcedeth.c b/src/drivers/net/forcedeth.c
@@ -967,6 +967,12 @@ static void
 forcedeth_link_status ( struct net_device *netdev )
 {
 	struct forcedeth_private *priv = netdev_priv ( netdev );
+	void *ioaddr = priv->mmio_addr;
+	u32 mii_status;
+
+	/* Clear the MII link change status */
+	mii_status = readl ( ioaddr + NvRegMIIStatus );
+	writel ( NVREG_MIISTAT_LINKCHANGE, ioaddr + NvRegMIIStatus );
 
 	if ( nv_update_linkspeed ( priv ) == 1 )
 		netdev_link_up ( netdev );
