michaelh/zephyr
1
0
Fork 0
Code Releases Activity

clock_control/stm32f10x: introduce driver for STM32F10x RCC

Browse source 
The patch adds a driver for STM32F10x series RCC (Reset and Clock
Control) subsystem.

The module is primarily responsible for setting up of MCU's clock
tree. In particular the driver sets up SYSCLK, PLL (with source
configuration), AHB prescaler, and APB1/APB2 prescalers. As part of this
functionality, the subsystem can enable/disable clock signal for
particular peripherals, thus reducing the power consumption of the MCU.

The driver implements clock control driver API. However, subsystem IDs
being HW specific are exposed in driver public header that must be
included by callers. The driver registers a single device using a common
name STM32_CLOCK_CONTROL_NAME. The device is initialized at
the PRIMARY level with priority 1. This allows the initialization to
take place right after SoC initialization routine.

The driver depends on selection of SOC_STM32F1X config option and is MCU
specific.

Change-Id: I8bea5db20726a24bce7b7ffe0b95de543240429a
Origin: Original
Signed-off-by: Maciej Borzecki <maciek.borzecki@gmail.com>
This commit is contained in:
Maciek Borzecki 2016-03-03 15:33:04 +01:00 • committed by Daniel Kalowsky
commit 3f5af00529
8 changed files with 600 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

28
include/drivers/clock_control/stm32_clock_control.h Normal file
View file

@ -0,0 +1,28 @@
/*
* Copyright (c) 2016 Open-RnD Sp. z o.o.
*
* 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.
*/
#ifndef _STM32_CLOCK_CONTROL_H_
#define _STM32_CLOCK_CONTROL_H_
#include <clock_control.h>
/* common clock control device name for all STM32 chips */
#define STM32_CLOCK_CONTROL_NAME "stm32-cc"
#ifdef CONFIG_SOC_STM32F1X
#include "stm32f1_clock_control.h"
#endif
#endif /* _STM32_CLOCK_CONTROL_H_ */