Intel PCH EG20T as PTP clock

modulename: ptp_pch.ko

configname: CONFIG_PTP_1588_CLOCK_PCH

Linux Kernel Configuration
└─>Device Drivers
└─>PTP clock support
└─>PCI 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. The hardware supports time stamping of PTP packets
when using the end-to-end delay (E2E) mechanism. The peer
delay mechanism (P2P) is not supported.

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:
depends
CONFIG_HAS_IOMEM
CONFIG_NET
CONFIG_PCI
CONFIG_COMPILE_TEST or CONFIG_X86_32

is depended by
CONFIG_PCH_GBE