ar71xx: do not override the mdio clock for ar9330. the override value (obtained from an atheros driver) seems to break ethernet functionality

SVN-Revision: 31956

target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c

@@ -103,8 +103,6 @@ static int ag71xx_mdio_reset(struct mii_bus *bus)
 
 	if (am->pdata->is_ar7240)
 		t = MII_CFG_CLK_DIV_6;
-	else if (am->pdata->is_ar9330)
-		t = MII_CFG_CLK_DIV_98;
 	else if (am->pdata->builtin_switch && !am->pdata->is_ar934x)
 		t = MII_CFG_CLK_DIV_10;
 	else if (!am->pdata->builtin_switch && am->pdata->is_ar934x)