From: Dario Binacchi <dariobin@libero.it>
Date: Tue, 29 Dec 2020 23:16:22 +0000 (+0100)
Subject: omap: timer: fix the rate setting
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=11326f379329d979bc39d26896190b799103a407;p=u-boot.git

omap: timer: fix the rate setting

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@libero.it>
---

diff --git a/drivers/timer/omap-timer.c b/drivers/timer/omap-timer.c
index 7ac20d78dd..721e385fd1 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];
@@ -61,7 +59,9 @@ 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);