CONFIG_METAG_META21 is not available for thedefaultarchitecture x86.
Result is shown for architecture metag
CONFIG_METAG_META21 (not configurable)
configname: CONFIG_METAG_META21
Linux Kernel Configuration
└─>Processor type and features
└─>METAG_META21
In linux kernel since version 3.1 (release Date: 2011-10-24)
Select this from the SoC config symbol to indicate that it contains a
Meta 2.1 core.
Meta 2.1 core.