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authorYendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>2017-02-09 01:14:26 +0300
committerDavid S. Miller <davem@davemloft.net>2017-02-10 01:10:23 +0300
commitbb1a619735b4660f21bce3e728b937640024b4ad (patch)
treecf73ea48581dd23195bb427bd3e9c2c144928096 /drivers/net/phy/mdio-bcm-iproc.c
parent9c8bb163ae784be4f79ae504e78c862806087c54 (diff)
downloadlinux-bb1a619735b4660f21bce3e728b937640024b4ad.tar.xz
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>
Diffstat (limited to 'drivers/net/phy/mdio-bcm-iproc.c')
-rw-r--r--drivers/net/phy/mdio-bcm-iproc.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/net/phy/mdio-bcm-iproc.c b/drivers/net/phy/mdio-bcm-iproc.c
index c0b4e65267af..46fe1ae919a3 100644
--- 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");