net: phy: Initialize mdio clock at probe function

USB PHYs need the MDIO clock divisor enabled earlier to work.
Initialize mdio clock divisor in probe function. The ext bus
bit available in the same register will be used by mdio mux
to enable external mdio.

Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Fixes: ddc24ae1 ("net: phy: Broadcom iProc MDIO bus driver")
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/mdio-bcm-iproc.c b/drivers/net/phy/mdio-bcm-iproc.c
index c0b4e65267af8b541974bd3a246897e1c38a9ac9..46fe1ae919a30a9a9b7644b5862f4a5bfa0b56ef 100644 (file)
--- a/drivers/net/phy/mdio-bcm-iproc.c
+++ b/drivers/net/phy/mdio-bcm-iproc.c
@@ -81,8 +81,6 @@ static int iproc_mdio_read(struct mii_bus *bus, int phy_id, int reg)
        if (rc)
                return rc;
 
-       iproc_mdio_config_clk(priv->base);
-
        /* Prepare the read operation */
        cmd = (MII_DATA_TA_VAL << MII_DATA_TA_SHIFT) |
                (reg << MII_DATA_RA_SHIFT) |
@@ -112,8 +110,6 @@ static int iproc_mdio_write(struct mii_bus *bus, int phy_id,
        if (rc)
                return rc;
 
-       iproc_mdio_config_clk(priv->base);
-
        /* Prepare the write operation */
        cmd = (MII_DATA_TA_VAL << MII_DATA_TA_SHIFT) |
                (reg << MII_DATA_RA_SHIFT) |
@@ -163,6 +159,8 @@ static int iproc_mdio_probe(struct platform_device *pdev)
        bus->read = iproc_mdio_read;
        bus->write = iproc_mdio_write;
 
+       iproc_mdio_config_clk(priv->base);
+
        rc = of_mdiobus_register(bus, pdev->dev.of_node);
        if (rc) {
                dev_err(&pdev->dev, "MDIO bus registration failed\n");