From e660cfad5339719721a96257090ae47bbc2abee6 Mon Sep 17 00:00:00 2001
From: Christian Gmeiner <christian.gmeiner@gmail.com>
Date: Thu, 16 Dec 2021 10:57:29 +0100
Subject: [PATCH] omap: timer: implement timer_get_boot_us
To make the OMAP DM timer driver useful for the timing of
bootstages, we need to implement timer_get_boot_us(..).
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
---
drivers/timer/omap-timer.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/timer/omap-timer.c b/drivers/timer/omap-timer.c
index 721e385fd1..25a6108fef 100644
--- a/drivers/timer/omap-timer.c
+++ b/drivers/timer/omap-timer.c
@@ -83,6 +83,27 @@ static int omap_timer_of_to_plat(struct udevice *dev)
return 0;
}
+#if CONFIG_IS_ENABLED(BOOTSTAGE)
+ulong timer_get_boot_us(void)
+{
+ u64 ticks = 0;
+ u32 rate = 1;
+ u64 us;
+ int ret;
+
+ ret = dm_timer_init();
+ if (!ret) {
+ /* The timer is available */
+ rate = timer_get_rate(gd->timer);
+ timer_get_count(gd->timer, &ticks);
+ } else {
+ return 0;
+ }
+
+ us = (ticks * 1000) / rate;
+ return us;
+}
+#endif
static const struct timer_ops omap_timer_ops = {
.get_count = omap_timer_get_count,
--
2.39.5