zephyr/drivers/timer/sys_clock_init.c
Benjamin Walsh d340d4cb3f device: use DEVICE_INIT everwhere
This is the last step before obsoleting DEVICE_DEFINE() and
DEVICE_INIT_CONFIG_DEFINE().

Change-Id: Ica4257662969048083ab9839872b4b437b8b351b
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:25:25 -05:00

38 lines
1.4 KiB
C

/*
* Copyright (c) 2015 Wind River Systems, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file
* @brief Initialize system clock driver
*
* Initializing the timer driver is done in this module to reduce code
* duplication. Although both nanokernel and microkernel systems initialize
* the timer driver at the same point, the two systems differ in when the system
* can begin to process system clock ticks. A nanokernel system can process
* system clock ticks once the driver has initialized. However, in a
* microkernel system all system clock ticks are deferred (and stored on the
* kernel server command stack) until the kernel server fiber starts and begins
* processing any queued ticks.
*/
#include <nanokernel.h>
#include <init.h>
#include <drivers/system_timer.h>
DEVICE_INIT(sys_clock, "sys_clock", _sys_clock_driver_init,
NULL, NULL,
NANOKERNEL, CONFIG_SYSTEM_CLOCK_INIT_PRIORITY);