CONFIG_MACH_EDB9302A is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Support Cirrus Logic EDB9302A

modulename: edb9302a.ko

configname: CONFIG_MACH_EDB9302A

Linux Kernel Configuration
└─>Cirrus EP93xx Implementation Options
└─>Support Cirrus Logic EDB9302A
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Say 'Y' here if you want your kernel to support the Cirrus
Logic EDB9302A Evaluation Board.

source code:
arch/arm/mach-ep93xx/edb9302a.c