Special Function Registers support

modulename: sfr.ko

configname: CONFIG_AT91_SOC_SFR

Linux Kernel Configuration
└─>Device Drivers
└─>SOC (System On Chip) specific Drivers
└─>Special Function Registers support
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This is a driver for the Special Function Registers available on
Atmel SAMA5Dx SoCs, providing access to specific aspects of the
integrated memory, bridge implementations, processor etc.

This driver can also be built as a module. If so, the module
will be called sfr.

source code: