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| author | Allen Martin <amartin@nvidia.com> | 2012-12-19 13:02:36 -0800 |
|---|---|---|
| committer | Allen Martin <amartin@nvidia.com> | 2012-12-19 13:02:36 -0800 |
| commit | a098cf41fdb2a6607c675f7fe4f3164617c9367e (patch) | |
| tree | b37acb36f65909e6f74cc537d73efd883a1485a6 /arch/x86/lib/timer.c | |
| parent | b8a7c467960ffb4d5a5e1eef5f7783fb6f594542 (diff) | |
| parent | 095728803eedfce850a2f85828f79500cb09979e (diff) | |
| download | u-boot-imx-a098cf41fdb2a6607c675f7fe4f3164617c9367e.zip u-boot-imx-a098cf41fdb2a6607c675f7fe4f3164617c9367e.tar.gz u-boot-imx-a098cf41fdb2a6607c675f7fe4f3164617c9367e.tar.bz2 | |
Merge remote-tracking branch 'u-boot/master' into u-boot-arm-merged
Conflicts:
README
arch/arm/cpu/armv7/exynos/clock.c
board/samsung/universal_c210/universal.c
drivers/misc/Makefile
drivers/power/power_fsl.c
include/configs/mx35pdk.h
include/configs/mx53loco.h
include/configs/seaboard.h
Diffstat (limited to 'arch/x86/lib/timer.c')
| -rw-r--r-- | arch/x86/lib/timer.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/x86/lib/timer.c b/arch/x86/lib/timer.c index fd7032e..a13424b 100644 --- a/arch/x86/lib/timer.c +++ b/arch/x86/lib/timer.c @@ -37,6 +37,7 @@ struct timer_isr_function { static struct timer_isr_function *first_timer_isr; static unsigned long system_ticks; +static uint64_t base_value; /* * register_timer_isr() allows multiple architecture and board specific @@ -98,3 +99,19 @@ ulong get_timer(ulong base) { return system_ticks - base; } + +void timer_set_tsc_base(uint64_t new_base) +{ + base_value = new_base; +} + +uint64_t timer_get_tsc(void) +{ + uint64_t time_now; + + time_now = rdtsc(); + if (!base_value) + base_value = time_now; + + return time_now - base_value; +} |