[U-Boot] [PATCH 3/4] dm: omap-timer: Use 64bit for counter values

Lokesh Vutla lokeshvutla at ti.com
Thu Aug 16 12:56:54 UTC 2018


In order to handle counter overflows use 64 bit values for counter.
Also load the initial value during probe.

Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
---
 drivers/timer/omap-timer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/timer/omap-timer.c b/drivers/timer/omap-timer.c
index 313eda54b5..b8f52ef2e4 100644
--- a/drivers/timer/omap-timer.c
+++ b/drivers/timer/omap-timer.c
@@ -50,7 +50,7 @@ static int omap_timer_get_count(struct udevice *dev, u64 *count)
 {
 	struct omap_timer_priv *priv = dev_get_priv(dev);
 
-	*count = readl(&priv->regs->tcrr);
+	*count = timer_conv_64(readl(&priv->regs->tcrr));
 
 	return 0;
 }
@@ -64,6 +64,7 @@ static int omap_timer_probe(struct udevice *dev)
 
 	/* start the counter ticking up, reload value on overflow */
 	writel(0, &priv->regs->tldr);
+	writel(0, &priv->regs->tcrr);
 	/* enable timer */
 	writel((CONFIG_SYS_PTV << 2) | TCLR_PRE_EN | TCLR_AUTO_RELOAD |
 	       TCLR_START, &priv->regs->tclr);
-- 
2.18.0



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