SA11x0/PXA2xx/PXA910

modulename: rtc-sa1100.ko

configname: CONFIG_RTC_DRV_SA1100

Linux Kernel Configuration
└─>Device Drivers
└─>Real Time Clock
└─>SA11x0/PXA2xx/PXA910
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
If you say Y here you will get access to the real time clock
built into your SA11x0 or PXA2xx CPU.

To compile this driver as a module, choose M here: the
module will be called rtc-sa1100.

source code: