RDC R-321x SoC

modulename: gpio.ko

configname: CONFIG_X86_RDC321X

Linux Kernel Configuration for x86
└─>Processor type and features
└─>RDC R-321x SoC
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
This option is needed for RDC R-321x system-on-chip, also known
as R-8610-(G).
If you don't have one of these chips, you should say N here.

source code:

depends
CONFIG_X86_32 |
| CONFIG_X86_EXTENDED_PLATFORM