X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fnet%2Fmii.c;h=e42aa797f08b88ca9f9b71a065e1dab90d4047cd;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=c33cb3dc942b713f993f7ae75f5bede82c5cacc9;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/drivers/net/mii.c b/drivers/net/mii.c
index c33cb3dc9..e42aa797f 100644
--- a/drivers/net/mii.c
+++ b/drivers/net/mii.c
@@ -207,6 +207,20 @@ int mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
 	return 0;
 }
 
+int mii_check_gmii_support(struct mii_if_info *mii)
+{
+	int reg;
+
+	reg = mii->mdio_read(mii->dev, mii->phy_id, MII_BMSR);
+	if (reg & BMSR_ESTATEN) {
+		reg = mii->mdio_read(mii->dev, mii->phy_id, MII_ESTATUS);
+		if (reg & (ESTATUS_1000_TFULL | ESTATUS_1000_THALF))
+			return 1;
+	}
+
+	return 0;
+}
+
 int mii_link_ok (struct mii_if_info *mii)
 {
 	/* first, a dummy read, needed to latch some MII phys */
@@ -394,5 +408,6 @@ EXPORT_SYMBOL(mii_ethtool_gset);
 EXPORT_SYMBOL(mii_ethtool_sset);
 EXPORT_SYMBOL(mii_check_link);
 EXPORT_SYMBOL(mii_check_media);
+EXPORT_SYMBOL(mii_check_gmii_support);
 EXPORT_SYMBOL(generic_mii_ioctl);