Broadcom BCM84881 PHY

modulename: bcm84881.ko

configname: CONFIG_BCM84881_PHY

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>PHY Device support and infrastructure
└─>Broadcom BCM84881 PHY
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Support the Broadcom BCM84881 PHY.

source code: