B53 SPI connected switch driver

modulename: b53_spi.ko

configname: CONFIG_B53_SPI_DRIVER

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Distributed Switch Architecture drivers
└─>Broadcom BCM53xx managed switch support
└─>B53 SPI connected switch driver
In linux kernel since version 4.1 (release Date: 2015-06-21)  
Select to enable support for registering switches configured through SPI.

source code: