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

Marvell OpenRD Base Board

modulename: openrd_base-setup.ko

configname: CONFIG_MACH_OPENRD_BASE

Linux Kernel Configuration
└─>Marvell Kirkwood Implementations
└─>Marvell OpenRD Base Board
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
Say 'Y' here if you want your kernel to support the
Marvell OpenRD Base Board.

source code:
arch/arm/mach-kirkwood/openrd_base-setup.c