CONFIG_ASSABET_NEPONSET is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Include support for Neponset

modulename: neponset.ko

configname: CONFIG_ASSABET_NEPONSET

Linux Kernel Configuration
└─>SA11x0 Implementations
└─>Include support for Neponset
In linux kernel since version 2.6.12  
Say Y here if you are using the Intel(R) StrongARM(R) SA-1110
Microprocessor Development Board (Assabet) with the SA-1111
Development Board (Nepon).

source code: