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