CONFIG_MACH_MX31MOBOARD is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
Support mx31moboard platforms (EPFL Mobots group)
modulename: mx31moboard.ko
configname: CONFIG_MACH_MX31MOBOARD
Linux Kernel Configuration
└─>Support mx31moboard platforms (EPFL Mobots group)
In linux kernel since version 2.6.29 (release Date: 2009-03-23)
Include support for mx31moboard platform. This includes specific
configurations for the board and its peripherals.
configurations for the board and its peripherals.