CONFIG_ARCH_PXA_IDP is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_ARCH_PXA_IDP.
Result is shown for kernelversion 6.9.9

Accelent Xscale IDP

modulename: idp.ko

configname: CONFIG_ARCH_PXA_IDP

Linux Kernel Configuration
└─>PXA2xx/PXA3xx-based
└─>Intel PXA2xx/PXA3xx Implementations
└─>Accelent Xscale IDP
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
source code: