4 * SPDX-License-Identifier: GPL-2.0+
13 * Implement a timer uclass to work with lib/time.c. The timer is usually
14 * a 32 bits free-running up counter. The get_rate() method is used to get
15 * the input clock frequency of the timer. The get_count() method is used
16 * to get the current 32 bits count value. If the hardware is counting down,
17 * the value should be inversed inside the method. There may be no real
18 * tick, and no timer interrupt.
21 int timer_get_count(struct udevice *dev, unsigned long *count)
23 const struct timer_ops *ops = device_get_ops(dev);
28 return ops->get_count(dev, count);
31 unsigned long timer_get_rate(struct udevice *dev)
33 struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev);
35 return uc_priv->clock_rate;
38 UCLASS_DRIVER(timer) = {
41 .per_device_auto_alloc_size = sizeof(struct timer_dev_priv),