CONFIG_TOSHIBA_BOARDS is not available for thedefaultarchitecture x86.
Result is shown for architecture mips
default or selected kernelversion does not have config value CONFIG_TOSHIBA_BOARDS.
Result is shown for kernelversion 5.4.123
CONFIG_TOSHIBA_BOARDS (not configurable)
configname: CONFIG_TOSHIBA_BOARDS
Linux/MIPS Kernel Configuration
└─>Machine selection
└─>TOSHIBA_BOARDS