Device-tree support for persistent memory regions

modulename: of_pmem.ko

configname: CONFIG_OF_PMEM

Linux Kernel Configuration
└─>Device Drivers
└─>NVDIMM (Non-Volatile Memory Device) Support
└─>Device Tree and Open Firmware support
└─>Device-tree support for persistent memory regions
In linux kernel since version 4.2 (release Date: 2015-08-30)  
Allows regions of persistent memory to be described in the
device-tree.

Select Y if unsure.

source code: