If CONFIG_SYS_TIMER_COUNTER is used we can provide a default microsecond timer implementation.
Signed-off-by: Simon Glass sjg@chromium.org ---
lib/time.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/lib/time.c b/lib/time.c index 3c49243e6a..aed1a091f2 100644 --- a/lib/time.c +++ b/lib/time.c @@ -36,6 +36,23 @@ unsigned long notrace timer_read_counter(void) return readl(CONFIG_SYS_TIMER_COUNTER); #endif } + +ulong timer_get_boot_us(void) +{ + ulong count = timer_read_counter(); + +#if CONFIG_SYS_TIMER_RATE == 1000000 + return count; +#elif CONFIG_SYS_TIMER_RATE > 1000000 + return lldiv(count, CONFIG_SYS_TIMER_RATE / 1000000); +#elif defined(CONFIG_SYS_TIMER_RATE) + return (unsigned long long)count * 1000000 / CONFIG_SYS_TIMER_RATE; +#else + /* Assume the counter is in microseconds */ + return count; +#endif +} + #else extern unsigned long __weak timer_read_counter(void); #endif