Intel PCH EG20T as PTP clock

modulename: ptp_pch.ko

configname: CONFIG_PTP_1588_CLOCK_PCH

Linux Kernel Configuration
└─>Device Drivers
└─>PTP clock support
└─>Intel PCH EG20T as PTP clock
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This driver adds support for using the PCH EG20T as a PTP
clock. This clock is only useful if your PTP programs are
getting hardware time stamps on the PTP Ethernet packets
using the SO_TIMESTAMPING API.

To compile this driver as a module, choose M here: the module
will be called ptp_pch.

source code: