CONFIG_405GP is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc
default or selected kernelversion does not have config value CONFIG_405GP.
Result is shown for kernelversion 6.9.9

CONFIG_405GP (not configurable)

configname: CONFIG_405GP

Linux Kernel Configuration
└─>405GP
In linux kernel since version 2.6.20 (release Date: 2007-02-04)