Clocksource PRCMU Timer

modulename: clksrc-dbx500-prcmu.ko

configname: CONFIG_CLKSRC_DBX500_PRCMU

Linux Kernel Configuration
└─>Device Drivers
└─>Clock Source drivers
└─>Clocksource PRCMU Timer
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Use the always on PRCMU Timer as clocksource

source code: