KGDB FDC channel

configname: CONFIG_MIPS_EJTAG_FDC_KGDB_CHAN

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>KGDB FDC channel
In linux kernel since version 4.1 (release Date: 2015-06-21)  
FDC channel number to use for KGDB.