diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 34e78be..9d7f503 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -97,6 +97,7 @@
 config WDT_ORION
 	bool "Orion watchdog timer support"
 	depends on WDT
+	select CLK
 	help
 	   Select this to enable Orion watchdog timer, which can be found on some
 	   Marvell Armada chips.
diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c
index c1add3e..885821d 100644
--- a/drivers/watchdog/orion_wdt.c
+++ b/drivers/watchdog/orion_wdt.c
@@ -14,7 +14,9 @@
 
 #include <common.h>
 #include <dm.h>
+#include <clk.h>
 #include <wdt.h>
+#include <linux/kernel.h>
 #include <asm/io.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/soc.h>
@@ -27,6 +29,8 @@
 	void __iomem *rstout;
 	void __iomem *rstout_mask;
 	u32 timeout;
+	unsigned long clk_rate;
+	struct clk clk;
 };
 
 #define RSTOUT_ENABLE_BIT		BIT(8)
@@ -44,17 +48,18 @@
 	struct orion_wdt_priv *priv = dev_get_priv(dev);
 
 	/* Reload watchdog duration */
-	writel(priv->timeout, priv->reg + priv->wdt_counter_offset);
+	writel(priv->clk_rate * priv->timeout,
+	       priv->reg + priv->wdt_counter_offset);
 
 	return 0;
 }
 
-static int orion_wdt_start(struct udevice *dev, u64 timeout, ulong flags)
+static int orion_wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags)
 {
 	struct orion_wdt_priv *priv = dev_get_priv(dev);
 	u32 reg;
 
-	priv->timeout = (u32) timeout;
+	priv->timeout = DIV_ROUND_UP(timeout_ms, 1000);
 
 	/* Enable the fixed watchdog clock input */
 	reg = readl(priv->reg + TIMER_CTRL);
@@ -62,7 +67,8 @@
 	writel(reg, priv->reg + TIMER_CTRL);
 
 	/* Set watchdog duration */
-	writel(priv->timeout, priv->reg + priv->wdt_counter_offset);
+	writel(priv->clk_rate * priv->timeout,
+	       priv->reg + priv->wdt_counter_offset);
 
 	/* Clear the watchdog expiration bit */
 	reg = readl(priv->reg + TIMER_A370_STATUS);
@@ -147,9 +153,18 @@
 
 static int orion_wdt_probe(struct udevice *dev)
 {
+	struct orion_wdt_priv *priv = dev_get_priv(dev);
+	int ret;
+
 	debug("%s: Probing wdt%u\n", __func__, dev->seq);
 	orion_wdt_stop(dev);
 
+	ret = clk_get_by_name(dev, "fixed", &priv->clk);
+	if (!ret)
+		priv->clk_rate = clk_get_rate(&priv->clk);
+	else
+		priv->clk_rate = 25000000;
+
 	return 0;
 }