CONFIG_ARCH_PXA is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
PXA2xx/PXA3xx-based
configname: CONFIG_ARCH_PXA
Linux Kernel Configuration
└─>PXA2xx/PXA3xx-based
In linux kernel since version 2.6.12
Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
selects
CONFIG_ARM_CPU_SUSPENDCONFIG_CLKSRC_PXA
CONFIG_CLKSRC_MMIO
CONFIG_TIMER_OF
CONFIG_CPU_XSCALE
CONFIG_GPIO_PXA
CONFIG_GPIOLIB
CONFIG_PLAT_PXA
CONFIG_ARCH_MTD_XIP
CONFIG_AUTO_ZRELADDR
CONFIG_COMMON_CLK
CONFIG_GENERIC_IRQ_MULTI_HANDLER
CONFIG_IRQ_DOMAIN
CONFIG_SPARSE_IRQ