CONFIG_PXA3xx is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
CONFIG_PXA3xx (not configurable)
modulename: mfp-pxa3xx.ko
configname: CONFIG_PXA3xx
Linux Kernel Configuration
└─>PXA3xx
In linux kernel since version 2.6.24 (release Date: 2008-01-24)
Select code specific to PXA3xx variants