On Thu, Jul 21, 2022 at 6:30 PM Jun Nie jun.nie@linaro.org wrote:
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
FWIW, it also fixes boot failure when bootstage is enabled.
Acked-by: Shawn Guo shawn.guo@linaro.org
Shawn
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; -- 2.25.1