net: mv643xx_eth: Fetch the phy connection type from DT

The MAC is capable of RGMII mode and that is probably a more typical
connection type than GMII today (eg it is used by Marvell Reference
designs for several SOCs). Let DT users specify the standard

   phy-connection-type = "rgmii-id";

On a phy node.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/marvell-orion-net.txt b/Documentation/devicetree/bindings/net/marvell-orion-net.txt
index bce52b2..6fd988c 100644 (file)
--- a/Documentation/devicetree/bindings/net/marvell-orion-net.txt
+++ b/Documentation/devicetree/bindings/net/marvell-orion-net.txt
@@ -49,6 +49,7 @@ Optional port properties:
 and
 
  - phy-handle: See ethernet.txt file in the same directory.
+ - phy-mode: See ethernet.txt file in the same directory.
 
 or
 

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 5583118..bf5cc55 100644 (file)
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2968,6 +2968,22 @@ static void set_params(struct mv643xx_eth_private *mp,
        mp->txq_count = pd->tx_queue_count ? : 1;
 }
 
+static int get_phy_mode(struct mv643xx_eth_private *mp)
+{
+       struct device *dev = mp->dev->dev.parent;
+       int iface = -1;
+
+       if (dev->of_node)
+               iface = of_get_phy_mode(dev->of_node);
+
+       /* Historical default if unspecified. We could also read/write
+        * the interface state in the PSC1
+        */
+       if (iface < 0)
+               iface = PHY_INTERFACE_MODE_GMII;
+       return iface;
+}
+
 static struct phy_device *phy_scan(struct mv643xx_eth_private *mp,
                                   int phy_addr)
 {
@@ -2994,7 +3010,7 @@ static struct phy_device *phy_scan(struct mv643xx_eth_private *mp,
                                "orion-mdio-mii", addr);
 
                phydev = phy_connect(mp->dev, phy_id, mv643xx_eth_adjust_link,
-                               PHY_INTERFACE_MODE_GMII);
+                                    get_phy_mode(mp));
                if (!IS_ERR(phydev)) {
                        phy_addr_set(mp, addr);
                        break;
@@ -3090,6 +3106,7 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
        if (!dev)
                return -ENOMEM;
 
+       SET_NETDEV_DEV(dev, &pdev->dev);
        mp = netdev_priv(dev);
        platform_set_drvdata(pdev, mp);
 
@@ -3129,7 +3146,7 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
        if (pd->phy_node) {
                mp->phy = of_phy_connect(mp->dev, pd->phy_node,
                                         mv643xx_eth_adjust_link, 0,
-                                        PHY_INTERFACE_MODE_GMII);
+                                        get_phy_mode(mp));
                if (!mp->phy)
                        err = -ENODEV;
                else
@@ -3187,8 +3204,6 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
        dev->priv_flags |= IFF_UNICAST_FLT;
        dev->gso_max_segs = MV643XX_MAX_TSO_SEGS;
 
-       SET_NETDEV_DEV(dev, &pdev->dev);
-
        if (mp->shared->win_protect)
                wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect);