coreboot/src/cpu
Ronald G. Minnich 5a734168ee Exynos5250: add a microsecond timer
Add a microsecond timer, its declaration, the function to start it,
and its usage.  To start it, one calls timer_start().  From that point
on, one can call timer_us() to find microseconds since the timer was
started.

We show its use in the bootblock. You want it started very early.

Finally, the delay.h change having been (ironically) delayed, we
create time.h and have it hold one declaration, for the timer_us() and
timer_start() prototype.

We feel that these two functions should become the hardware specific
functions, allowing us to finally move udelay() into src/lib where it
belongs.

Change-Id: I19cbc2bb0089a3de88cfb94276266af38b9363c5
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/3073
Tested-by: build bot (Jenkins)
2013-04-30 18:24:41 -07:00
..
amd AMD: Drop six copies of wrmsr_amd and rdmsr_amd 2013-04-04 04:52:18 +02:00
armltd ARMV7: minor tweaks to inter-stage calling and payload handling. 2013-02-20 20:49:16 +01:00
intel haswell: Update ULT microcode to rev 'a' 2013-04-30 14:51:30 -07:00
samsung Exynos5250: add a microsecond timer 2013-04-30 18:24:41 -07:00
via GPLv2 notice: Unify all files to just use one space in »MA 02110-1301« 2013-03-01 10:16:08 +01:00
x86 smi: Update mainboard_smi_gpi() to have 32bit argument 2013-04-30 13:47:43 -07:00
Kconfig Minor Kconfig help text fix 2013-04-01 23:27:07 +02:00
Makefile.inc Fix microcode selection code 2013-02-27 21:01:53 +01:00