Broadcom's NVRAM support

modulename: nvmem_brcm_nvram.ko

configname: CONFIG_NVMEM_BRCM_NVRAM

Linux Kernel Configuration
└─>Device Drivers
└─>NVMEM Support
└─>Broadcom's NVRAM support
In linux kernel since version 5.2 (release Date: 2019-07-07)  
This driver provides support for Broadcom's NVRAM that can be accessed
using I/O mapping.

source code: