On 09/28/2015 09:19 PM, Thomas Chou wrote:
diff --git a/drivers/timer/timer.c b/drivers/timer/timer.c
new file mode 100644
index 0000000..648fd06
--- /dev/null
+++ b/drivers/timer/timer.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2015 Thomas Chou <[email protected]>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <timer.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+unsigned long notrace get_tbclk(void)
+{
+ struct udevice *dev;
+ unsigned long rate;
+
+ uclass_first_device(UCLASS_TIMER, &dev);
+ if (!dev)
+ return 100000000; /* 100MHz, fail-safe */
return -ENODEV;
+
+ timer_get_rate(dev, &rate);
+
+ return rate;
+}
+
+unsigned long notrace timer_read_counter(void)
+{
+ struct udevice *dev;
+ unsigned long count;
+
+ uclass_first_device(UCLASS_TIMER, &dev);
+ if (!dev)
+ return 0; /* 0, fail-safe */
return -ENODEV;
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