[PATCH 17/31] omap: timer: fix the rate setting
Dario Binacchi
dariobin at libero.it
Tue Aug 25 11:21:10 CEST 2020
The prescaler (PTV) setting must be taken into account even when the
timer input clock frequency has been set.
Signed-off-by: Dario Binacchi <dariobin at libero.it>
---
drivers/timer/omap-timer.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/timer/omap-timer.c b/drivers/timer/omap-timer.c
index cf3d27b96b..60af68e677 100644
--- a/drivers/timer/omap-timer.c
+++ b/drivers/timer/omap-timer.c
@@ -19,8 +19,6 @@
#define TCLR_PRE_EN BIT(5) /* Pre-scaler enable */
#define TCLR_PTV_SHIFT (2) /* Pre-scaler shift value */
-#define TIMER_CLOCK (V_SCLK / (2 << CONFIG_SYS_PTV))
-
struct omap_gptimer_regs {
unsigned int tidr; /* offset 0x00 */
unsigned char res1[12];
@@ -63,7 +61,9 @@ static int omap_timer_probe(struct udevice *dev)
struct omap_timer_priv *priv = dev_get_priv(dev);
if (!uc_priv->clock_rate)
- uc_priv->clock_rate = TIMER_CLOCK;
+ uc_priv->clock_rate = V_SCLK;
+
+ uc_priv->clock_rate /= (2 << CONFIG_SYS_PTV);
/* start the counter ticking up, reload value on overflow */
writel(0, &priv->regs->tldr);
--
2.17.1
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