diff --git a/drivers/timer/sandbox_timer.c b/drivers/timer/sandbox_timer.c
index 00a9944..a8da936 100644
--- a/drivers/timer/sandbox_timer.c
+++ b/drivers/timer/sandbox_timer.c
@@ -27,6 +27,11 @@
 
 static int sandbox_timer_probe(struct udevice *dev)
 {
+	struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev);
+
+	if (!uc_priv->clock_rate)
+		uc_priv->clock_rate = 1000000;
+
 	return 0;
 }
 
@@ -47,3 +52,8 @@
 	.ops	= &sandbox_timer_ops,
 	.flags = DM_FLAG_PRE_RELOC,
 };
+
+/* This is here in case we don't have a device tree */
+U_BOOT_DEVICE(sandbox_timer_non_fdt) = {
+	.name = "sandbox_timer",
+};