CONFIG_MACH_PCM027 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_MACH_PCM027.
Result is shown for kernelversion 6.9.9

Phytec phyCORE-PXA270 CPU module (PCM-027)

modulename: pcm027.ko

configname: CONFIG_MACH_PCM027

Linux Kernel Configuration
└─>PXA2xx/PXA3xx-based
└─>Intel PXA2xx/PXA3xx Implementations
└─>Phytec phyCORE-PXA270 CPU module (PCM-027)
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
source code: