MIPS Common Device Memory Map (CDMM) Driver

modulename: mips_cdmm.ko

configname: CONFIG_MIPS_CDMM

Linux Kernel Configuration
└─>Device Drivers
└─>Bus devices
└─>MIPS Common Device Memory Map (CDMM) Driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Driver needed for the MIPS Common Device Memory Map bus in MIPS
cores. This bus is for per-CPU tightly coupled devices such as the
Fast Debug Channel (FDC).

For this to work, either your bootloader needs to enable the CDMM
region at an unused physical address on the boot CPU, or else your
platform code needs to implement mips_cdmm_phys_base() (see
asm/cdmm.h).

source code: