From: Yann Cézard <yann.cezard@free.fr>
Date: Sun, 20 Mar 2011 12:29:05 +0000 (+0000)
Subject: [forcedeth] Clear the MII link status register on link status changes
X-Git-Tag: v1.20.1~2216
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9215b7f;p=thirdparty%2Fipxe.git

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

Signed-off-by: Michael Brown <mcb30@ipxe.org>
---

diff --git a/src/drivers/net/forcedeth.c b/src/drivers/net/forcedeth.c
index 6876b005a..918f502f4 100644
--- 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 );