upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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43 lines
1.0 KiB
43 lines
1.0 KiB
9 years ago
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/*
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* Copyright (C) 2015 Thomas Chou <thomas@wytron.com.tw>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <timer.h>
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/*
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* Implement a Timer uclass to work with lib/time.c. The timer is usually
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* a 32 bits free-running up counter. The get_rate() method is used to get
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* the input clock frequency of the timer. The get_count() method is used
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* get the current 32 bits count value. If the hardware is counting down,
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* the value should be inversed inside the method. There may be no real
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* tick, and no timer interrupt.
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*/
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int timer_get_count(struct udevice *dev, unsigned long *count)
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{
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const struct timer_ops *ops = device_get_ops(dev);
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if (!ops->get_count)
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return -ENOSYS;
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return ops->get_count(dev, count);
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}
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unsigned long timer_get_rate(struct udevice *dev)
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{
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struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev);
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return uc_priv->clock_rate;
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}
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UCLASS_DRIVER(timer) = {
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.id = UCLASS_TIMER,
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.name = "timer",
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.per_device_auto_alloc_size = sizeof(struct timer_dev_priv),
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};
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