Use IEEE 1588 hwstamp
configname: CONFIG_MACB_USE_HWSTAMP
Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Ethernet driver support
└─>Use IEEE 1588 hwstamp
In linux kernel since version 4.2 (release Date: 2015-08-30)
Enable IEEE 1588 Precision Time Protocol (PTP) support for MACB.