With supporting timer_get_boot_us, we can profile boot up time with below configs and function bootstage_mark_name().
CONFIG_BOOTSTAGE=y CONFIG_BOOTSTAGE_REPORT=y CONFIG_CMD_BOOTSTAGE=y
Signed-off-by: Jun Nie jun.nie@linaro.org --- arch/arm/mach-imx/syscounter.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/arch/arm/mach-imx/syscounter.c b/arch/arm/mach-imx/syscounter.c index 7c02e199a3..df478a2326 100644 --- a/arch/arm/mach-imx/syscounter.c +++ b/arch/arm/mach-imx/syscounter.c @@ -79,6 +79,7 @@ int timer_init(void) gd->arch.tbl = 0; gd->arch.tbu = 0;
+ gd->arch.timer_rate_hz = freq; return 0; } #endif @@ -100,6 +101,14 @@ ulong get_timer(ulong base) return tick_to_time(get_ticks()) - base; }
+ulong timer_get_boot_us(void) +{ + if (!gd->arch.timer_rate_hz) + timer_init(); + + return tick_to_time(get_ticks()); +} + void __udelay(unsigned long usec) { unsigned long long tmp;