#define LAN8814_EEE_STATE 0x38
#define LAN8814_EEE_STATE_MASK2P5P BIT(10)
+#define LAN8814_PD_CONTROLS 0x9d
+#define LAN8814_PD_CONTROLS_PD_MEAS_TIME_MASK GENMASK(3, 0)
+#define LAN8814_PD_CONTROLS_PD_MEAS_TIME_VAL 0xb
+
/* Represents 1ppm adjustment in 2^32 format with
* each nsec contains 4 clock cycles.
* The value is calculated as following: (1/1000000)/((2^-32)/4)
lanphy_write_page_reg(phydev, 2, LAN8814_EEE_STATE, val);
}
+static void lan8814_update_meas_time(struct phy_device *phydev)
+{
+ u16 val;
+
+ /* By setting the measure time to a value of 0xb this will allow cables
+ * longer than 100m to be used. This configuration can be used
+ * regardless of the mode of operation of the PHY
+ */
+ val = lanphy_read_page_reg(phydev, 1, LAN8814_PD_CONTROLS);
+ val &= ~LAN8814_PD_CONTROLS_PD_MEAS_TIME_MASK;
+ val |= LAN8814_PD_CONTROLS_PD_MEAS_TIME_VAL;
+ lanphy_write_page_reg(phydev, 1, LAN8814_PD_CONTROLS, val);
+}
+
static int lan8814_probe(struct phy_device *phydev)
{
const struct kszphy_type *type = phydev->drv->driver_data;
/* Errata workarounds */
lan8814_clear_2psp_bit(phydev);
+ lan8814_update_meas_time(phydev);
return 0;
}