CONFIG_MACH_TRIZEPS4 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Keith und Koep Trizeps4 DIMM-Module

modulename: trizeps4.ko

configname: CONFIG_MACH_TRIZEPS4

Linux Kernel Configuration
└─>Intel PXA2xx/PXA3xx Implementations
└─>Keith und Koep Trizeps4 DIMM-Module
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
source code:
arch/arm/mach-pxa/trizeps4.c