tree 3f20eb14472fa36612e32e5cdd71e73230255afc
parent 789c22013574846413ffb86618297ee7de168af0
author Ryan Harkin <ryan.harkin@linaro.org> 1426603805 +0000
committer Dan Handley <dan.handley@arm.com> 1434543234 +0100

Add a simple delay timer driver API

The API is simple. The BSP or specific timer driver creates an
instance of timer_ops_t, fills in the timer specific data, then calls
timer_init(). The timer specific data includes a function pointer
to return the timer value and a clock multiplier/divider. The ratio
of the multiplier and the divider is the clock frequency in MHz.

After that, mdelay() or udelay() can be called to delay execution for
the specified time (milliseconds or microseconds, respectively).

Change-Id: Icf8a295e1d25874f789bf28b7412156329dc975c
Co-authored-by: Dan Handley <dan.handley@arm.com>