CONFIG_ARCH_AT91SAM9260 is not available for the default architecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_ARCH_AT91SAM9260.
Result is shown for kernelversion 5.9.9

AT91SAM9260 or AT91SAM9XE

modulename: at91sam9260_devices.ko
configname: CONFIG_ARCH_AT91SAM9260

Atmel AT91 Processor Devices for non DT boards
└─> AT91SAM9260 or AT91SAM9XE

source code: