CONFIG_CPU_SUBTYPE_SH7710 is not available for thedefaultarchitecture x86.
Result is shown for architecture sh
Support SH7710 processor
modulename: setup-sh7710.ko
configname: CONFIG_CPU_SUBTYPE_SH7710
Processor sub-type selection
└─>Support SH7710 processor
In linux kernel since version 2.6.19 (release Date: 2006-11-29)
Select SH7710 if you have a SH3-DSP SH7710 CPU.