ed08dd8997
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5018 42af7a65-404d-4744-a932-0658087f49c3
142 lines
5.4 KiB
C
142 lines
5.4 KiB
C
/************************************************************************************
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* configs/olimex-stm32-p107/include/board.h
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*
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* Copyright (C) 2009, 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <nuttx/config.h>
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#ifndef __ASSEMBLY__
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# include <stdint.h>
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#endif
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#include "stm32_rcc.h"
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#include "stm32_sdio.h"
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#include "stm32_internal.h"
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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#define BOARD_CFGR_MCO_SOURCE RCC_CFGR_PLL3CLK
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/* Clocking *************************************************************************/
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/* On-board crystal frequency is 25MHz (HSE) */
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#define STM32_BOARD_XTAL 25000000ul
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#define STM32_PLL_FREQUENCY (72000000)
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#define STM32_SYSCLK_FREQUENCY STM32_PLL_FREQUENCY
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#define STM32_HCLK_FREQUENCY STM32_PLL_FREQUENCY
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#define STM32_BOARD_HCLK STM32_HCLK_FREQUENCY /* same as above, to satisfy compiler */
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/* APB2 clock (PCLK2) is HCLK (72MHz) */
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#define STM32_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLK
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#define STM32_PCLK2_FREQUENCY STM32_HCLK_FREQUENCY
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#define STM32_APB2_CLKIN (STM32_PCLK2_FREQUENCY) /* Timers 2-7, 12-14 */
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/* APB2 timers 1 and 8 will receive PCLK2. */
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#define STM32_APB2_TIM1_CLKIN (STM32_PCLK2_FREQUENCY)
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#define STM32_APB2_TIM8_CLKIN (STM32_PCLK2_FREQUENCY)
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/* APB1 clock (PCLK1) is HCLK/2 (36MHz) */
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#define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLKd2
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#define STM32_PCLK1_FREQUENCY (STM32_HCLK_FREQUENCY/2)
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/* APB1 timers 2-4 will be twice PCLK1 (I presume the remaining will receive PCLK1) */
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#define STM32_APB1_TIM2_CLKIN (2*STM32_PCLK1_FREQUENCY)
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#define STM32_APB1_TIM3_CLKIN (2*STM32_PCLK1_FREQUENCY)
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#define STM32_APB1_TIM4_CLKIN (2*STM32_PCLK1_FREQUENCY)
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#define STM32_APB1_TIM5_CLKIN (STM32_PCLK1_FREQUENCY)
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#define STM32_APB1_TIM6_CLKIN (STM32_PCLK1_FREQUENCY)
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#define STM32_APB1_TIM7_CLKIN (STM32_PCLK1_FREQUENCY)
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/************************************************************************************
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* Public Function Prototypes
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************************************************************************************/
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/************************************************************************************
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* Name: stm32_boardinitialize
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*
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* Description:
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* All STM32 architectures must provide the following entry point. This entry point
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* is called early in the intitialization -- after all memory has been configured
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* and mapped but before any devices have been initialized.
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*
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************************************************************************************/
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void stm32_boardinitialize(void);
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/************************************************************************************
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* Name: stm32_board_clockconfig
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*
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* Description:
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* Any STM32 board may replace the "standard" board clock configuration logic with
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* its own, custom clock cofiguration logic.
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*
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************************************************************************************/
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#ifdef CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG
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void stm32_board_clockconfig(void);
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#endif
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/************************************************************************************
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* Name: stm32_selectrmii
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*
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* Description:
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* Selects the RMII inteface.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* None
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*
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************************************************************************************/
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static inline void stm32_selectrmii(void)
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{
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uint32_t regval;
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regval = getreg32(STM32_AFIO_MAPR);
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regval |= AFIO_MAPR_MII_RMII_SEL;
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putreg32(regval, STM32_AFIO_MAPR);
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}
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