diff options
| -rw-r--r-- | drivers/net/phy/dp83867.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/net/phy/dp83867.c b/drivers/net/phy/dp83867.c index 6bbc81ad295f..914619f3f0e3 100644 --- a/drivers/net/phy/dp83867.c +++ b/drivers/net/phy/dp83867.c @@ -619,6 +619,25 @@ static int dp83867_of_init(struct phy_device *phydev) #else static int dp83867_of_init(struct phy_device *phydev) { + struct dp83867_private *dp83867 = phydev->priv; + u16 delay; + + /* For non-OF device, the RX and TX ID values are either strapped + * or take from default value. So, we init RX & TX ID values here + * so that the RGMIIDCTL is configured correctly later in + * dp83867_config_init(); + */ + delay = phy_read_mmd(phydev, DP83867_DEVADDR, DP83867_RGMIIDCTL); + dp83867->rx_id_delay = delay & DP83867_RGMII_RX_CLK_DELAY_MAX; + dp83867->tx_id_delay = (delay >> DP83867_RGMII_TX_CLK_DELAY_SHIFT) & + DP83867_RGMII_TX_CLK_DELAY_MAX; + + /* Per datasheet, IO impedance is default to 50-ohm, so we set the + * same here or else the default '0' means highest IO impedance + * which is wrong. + */ + dp83867->io_impedance = DP83867_IO_MUX_CFG_IO_IMPEDANCE_MIN / 2; + return 0; } #endif /* CONFIG_OF_MDIO */ |