default or selected kernelversion does not have config value CONFIG_OLPC_OPENFIRMWARE.
Result is shown for kernelversion 5.4.69

Support for OLPC's Open Firmware

modulename: olpc_ofw.ko


Linux Kernel Configuration
└─>Bus options (PCI etc.)
└─>Support for OLPC's Open Firmware
In linux kernel since version 2.6.36 (release Date: 2010-10-20)  
This option adds support for the implementation of Open Firmware
that is used on the OLPC XO-1 Children's Machine.
If unsure, say N here.

source code:

is depended by