CONFIG_ARCH_PXA is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
PXA2xx/PXA3xx-based
configname: CONFIG_ARCH_PXA
ARM system type
└─>PXA2xx/PXA3xx-based
In linux kernel since version 2.6.12
Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
is selected by
CONFIG_MACH_ZYLONITECONFIG_MACH_ZYLONITE300
CONFIG_MACH_ZYLONITE320
CONFIG_MACH_ARCOM_ZEUS
CONFIG_MACH_CAPC7117
CONFIG_MACH_COLIBRI_PXA270_INCOME
CONFIG_MACH_VPAC270
CONFIG_MACH_CENTRO
CONFIG_MACH_RAUMFELD_RC
CONFIG_MACH_RAUMFELD_CONNECTOR
CONFIG_MACH_RAUMFELD_SPEAKER
CONFIG_TOSA_BT
CONFIG_MACH_ICONTROL
CONFIG_MACH_ZIPIT2
CONFIG_CPU_PXA300
CONFIG_CPU_PXA310
CONFIG_CPU_PXA320
CONFIG_CPU_PXA930
CONFIG_CPU_PXA935
CONFIG_PXA95x
CONFIG_CPU_PXA955
CONFIG_SHARPSL_PM
CONFIG_SHARPSL_PM_MAX1111
CONFIG_MACH_TAVOREVB
CONFIG_SND_PXA2XX_AC97
CONFIG_USB_EHCI_MV
CONFIG_USB_PXA25X
CONFIG_USB_PXA27X