| Message ID | 20220721103005.229257-1-jun.nie@linaro.org |
|---|---|
| State | Accepted |
| Commit | 651478777ba3905bc36764fc6c996e2b38ecb8aa |
| Headers | show |
| Series | imx: syscounter: support timer_get_boot_us | expand |
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 >
Hi Jun, On Thu, Jul 21, 2022 at 7:30 AM 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> Reviewed-by: Fabio Estevam <festevam@denx.de>
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;
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(+)