CONFIG_ARCH_AT91SAM9263 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_ARCH_AT91SAM9263.
Result is shown for kernelversion 6.5.1

AT91SAM9263

modulename: at91sam9263_devices.ko

configname: CONFIG_ARCH_AT91SAM9263

Atmel AT91 Processor Devices for non DT boards
└─>AT91SAM9263
In linux kernel since version 2.6.21 (release Date: 2007-04-25)  
source code: