Renesas R-Car S4-8 Ethernet SERDES driver

modulename: r8a779f0-ether-serdes.ko

configname: CONFIG_PHY_R8A779F0_ETHERNET_SERDES

Linux Kernel Configuration
└─>Device Drivers
└─>PHY Subsystem
└─>Renesas R-Car S4-8 Ethernet SERDES driver
In linux kernel since version 6.2 (release Date: 2023-02-19)  
Support for Ethernet SERDES found on Renesas R-Car S4-8 SoCs.

source code:

depends
CONFIG_ARCH_RENESAS or CONFIG_COMPILE_TEST