diff options
Diffstat (limited to 'drivers/timer/riscv_timer.c')
| -rw-r--r-- | drivers/timer/riscv_timer.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/timer/riscv_timer.c b/drivers/timer/riscv_timer.c index 28a6a6870b..169c03dcb5 100644 --- a/drivers/timer/riscv_timer.c +++ b/drivers/timer/riscv_timer.c @@ -11,6 +11,7 @@ */ #include <common.h> +#include <div64.h> #include <dm.h> #include <errno.h> #include <fdt_support.h> @@ -51,6 +52,27 @@ u64 notrace timer_early_get_count(void) } #endif +#if CONFIG_IS_ENABLED(RISCV_SMODE) && CONFIG_IS_ENABLED(BOOTSTAGE) +ulong timer_get_boot_us(void) +{ + int ret; + u64 ticks = 0; + u32 rate; + + ret = dm_timer_init(); + if (!ret) { + rate = timer_get_rate(gd->timer); + timer_get_count(gd->timer, &ticks); + } else { + rate = RISCV_SMODE_TIMER_FREQ; + ticks = riscv_timer_get_count(NULL); + } + + /* Below is converted from time(us) = (tick / rate) * 10000000 */ + return lldiv(ticks * 1000, (rate / 1000)); +} +#endif + static int riscv_timer_probe(struct udevice *dev) { struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev); |