CONFIG_MACH_JZ4740 is not available for thedefaultarchitecture x86.
Result is shown for architecture mips

Ingenic JZ4740 based machines

configname: CONFIG_MACH_JZ4740

System type
└─>Ingenic JZ4740 based machines
In linux kernel since version 2.6.36 (release Date: 2010-10-20)