1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c
index af27f9dbedf2..74012196bce9 100644
--- a/drivers/net/ethernet/allwinner/sun4i-emac.c
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -37,6 +37,11 @@
 
 #define EMAC_MAX_FRAME_LEN      0x0600
 
+#define EMAC_DEFAULT_MSG_ENABLE 0x0000
+static int debug = -1;     /* defaults above */;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "debug message flags");
+
 /* Transmit timeout, default 5 seconds. */
 static int watchdog = 5000;
 module_param(watchdog, int, 0400);
@@ -225,11 +230,27 @@ static void emac_get_drvinfo(struct net_device *dev,
         strlcpy(info->bus_info, dev_name(&dev->dev), sizeof(info->bus_info));
 }
 
+static u32 emac_get_msglevel(struct net_device *dev)
+{
+        struct emac_board_info *db = netdev_priv(dev);
+
+        return db->msg_enable;
+}
+
+static void emac_set_msglevel(struct net_device *dev, u32 value)
+{
+        struct emac_board_info *db = netdev_priv(dev);
+
+        db->msg_enable = value;
+}
+
 static const struct ethtool_ops emac_ethtool_ops = {
         .get_drvinfo    = emac_get_drvinfo,
         .get_link       = ethtool_op_get_link,
         .get_link_ksettings = phy_ethtool_get_link_ksettings,
         .set_link_ksettings = phy_ethtool_set_link_ksettings,
+        .get_msglevel   = emac_get_msglevel,
+        .set_msglevel   = emac_set_msglevel,
 };
 
 static unsigned int emac_setup(struct net_device *ndev)
@@ -804,6 +825,7 @@ static int emac_probe(struct platform_device *pdev)
         db->dev = &pdev->dev;
         db->ndev = ndev;
         db->pdev = pdev;
+        db->msg_enable = netif_msg_init(debug, EMAC_DEFAULT_MSG_ENABLE);
 
         spin_lock_init(&db->lock);