We are trying to use DP83640 PHY transceiver for implementing PTP in our application. We want to use "Hardware Time Stamping" capability of DP83640. When we tried configuring PTP feature enabled from an application it reports a warning " Hardware time stamping feature is not supported by the configured interface".
After debugging we noticed that one the IOCTL call made by the driver does not return the hardware time stamping capability of the device (DP83640). Based on this value driver is reporting that HW time stamping feature is not supported even though the PHY has the capability.
Please let us know what all hardware configuration needs to be done to "enable and use hardware time stamping feature of DP83640 PHY transceiver". we don't have a DP83640 PHY driver support in VxWorks OS.