kernelconfig_penguin
CONFIG_NEC_OSPREY is not available for the default architecture x86.
Result is shown for architecture mips
default or selected kernelversion does not have config value CONFIG_NEC_OSPREY.
Result is shown for kernelversion 5.4.123

Support for NEC Osprey board

configname: CONFIG_NEC_OSPREY

Linux/MIPS Kernel Configuration
└─> Machine selection
└─> Support for NEC Osprey board

In linux kernel since version 2.6.12