From: Philippe Elie <phil.el@wanadoo.fr>

From: Zwane Mwaikambo <zwane@arm.linux.org.uk>

This patch adds infrastructure code and enables ARM to utilise the timer
int oprofile driver.  There is PMU code under development for the XScale
but that is still forthcoming.  In the meantime you can use the timer int
driver with an updated Oprofile-CVS userspace (SF is a bit slow, please
allow 24hrs).