CONFIG_CPU_PXA955 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_CPU_PXA955.
Result is shown for kernelversion 6.2.5

CONFIG_CPU_PXA955 (not configurable)

configname: CONFIG_CPU_PXA955

Linux Kernel Configuration
└─>CPU_PXA955
In linux kernel since version 2.6.38 (release Date: 2011-03-14)  
PXA950 (codename MG1)

selects
CONFIG_PXA95x

depends
CONFIG_ARCH_PXA

is depended by
CONFIG_MACH_SAARB