/************************************************************************************ * configs/vsn/include/board.h * include/arch/board/board.h * * Copyright (C) 2009 Gregory Nutt. All rights reserved. * Copyright (C) 2011 Uros Platise. All rights reserved * * Authors: Gregory Nutt * Uros Platise * * 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. * ************************************************************************************/ #ifndef __ARCH_BOARD_BOARD_H #define __ARCH_BOARD_BOARD_H /************************************************************************************ * Included Files ************************************************************************************/ #include #ifndef __ASSEMBLY__ # include #endif #include "stm32_rcc.h" #include "stm32_sdio.h" #include "stm32_internal.h" /************************************************************************************ * Definitions ************************************************************************************/ /* Clocking *************************************************************************/ /* On-board external frequency source is 9MHz (HSE) provided by the CC1101, so it is * not available on power-up. Instead we are about to run on HSI*9 = 36 MHz, see * up_sysclock.c for details. */ #define STM32_BOARD_XTAL 9000000UL #define STM32_BOARD_HCLK 36000000UL /* PLL source is either HSI or HSE * When HSI: PLL multiplier is 9, out frequency 36 MHz * When HSE: PLL multiplier is 8: out frequency is 9 MHz x 8 = 72MHz */ #define STM32_CFGR_PLLSRC_HSI 0 #define STM32_CFGR_PLLMUL_HSI RCC_CFGR_PLLMUL_CLKx9 #define STM32_CFGR_PLLXTPRE_HSE 0 #define STM32_CFGR_PLLSRC_HSE RCC_CFGR_PLLSRC #define STM32_CFGR_PLLMUL_HSE RCC_CFGR_PLLMUL_CLKx8 /* Use the PLL and set the SYSCLK source to be the PLL */ #define STM32_SYSCLK_SW RCC_CFGR_SW_PLL #define STM32_SYSCLK_SWS RCC_CFGR_SWS_PLL /* AHB clock (HCLK, 36 MHz) is SYSCLK on HSI or SYSCLK/2 on HSE */ #define STM32_RCC_CFGR_HPRE_HSI RCC_CFGR_HPRE_SYSCLK #define STM32_RCC_CFGR_HPRE_HSE RCC_CFGR_HPRE_SYSCLKd2 #define STM32_HCLK_FREQUENCY STM32_BOARD_HCLK /* APB2 clock (PCLK2) is HCLK (36MHz) */ #define STM32_RCC_CFGR_PPRE2 RCC_CFGR_PPRE2_HCLK #define STM32_PCLK2_FREQUENCY STM32_BOARD_HCLK /* APB1 clock (PCLK1) is HCLK (36MHz) */ #define STM32_RCC_CFGR_PPRE1 RCC_CFGR_PPRE1_HCLK #define STM32_PCLK1_FREQUENCY STM32_BOARD_HCLK /* Timer 1..8 Frequencies */ #define STM32_TIM27_FREQUENCY (STM32_BOARD_HCLK) #define STM32_TIM18_FREQUENCY (STM32_BOARD_HCLK) /* USB divider -- Divide PLL clock by 1.5 */ #define STM32_CFGR_USBPRE 0 /* SDIO dividers. Note that slower clocking is required when DMA is disabled * in order to avoid RX overrun/TX underrun errors due to delayed responses * to service FIFOs in interrupt driven mode. * * SDcard default speed has max SDIO_CK freq of 25 MHz (12.5 Mbps) * After selection of high speed freq may be 50 MHz (25 Mbps) * Recommended default voltage: 3.3 V * * HCLK=36MHz, SDIOCLK=36 MHz, SDIO_CK=HCLK/(88+2)=400 KHz */ #define SDIO_INIT_CLKDIV (88 << SDIO_CLKCR_CLKDIV_SHIFT) /* DMA ON: HCLK=36 MHz, SDIOCLK=36MHz, SDIO_CK=HCLK/(0+2)=18 MHz * DMA OFF: HCLK=36 MHz, SDIOCLK=36MHz, SDIO_CK=HCLK/(1+2)=12 MHz */ #ifdef CONFIG_SDIO_DMA # define SDIO_MMCXFR_CLKDIV (0 << SDIO_CLKCR_CLKDIV_SHIFT) #else # ifndef CONFIG_DEBUG # define SDIO_MMCXFR_CLKDIV (1 << SDIO_CLKCR_CLKDIV_SHIFT) # else # define SDIO_MMCXFR_CLKDIV (10 << SDIO_CLKCR_CLKDIV_SHIFT) # endif #endif /* DMA ON: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(0+2)=18 MHz * DMA OFF: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(1+2)=12 MHz * Extra slow down in debug mode to get rid of underruns. */ #ifdef CONFIG_SDIO_DMA # define SDIO_SDXFR_CLKDIV (0 << SDIO_CLKCR_CLKDIV_SHIFT) #else # ifndef CONFIG_DEBUG # define SDIO_SDXFR_CLKDIV (1 << SDIO_CLKCR_CLKDIV_SHIFT) # else # define SDIO_SDXFR_CLKDIV (10 << SDIO_CLKCR_CLKDIV_SHIFT) # endif #endif /* LED definitions ******************************************************************/ /* The VSN has one LED that we will encode as: */ #define LED_STARTED 0 /* ... */ #define LED_HEAPALLOCATE 1 /* ... */ #define LED_IRQSENABLED 2 /* ... */ #define LED_STACKCREATED 3 /* ... */ #define LED_INIRQ 4 /* ... */ #define LED_SIGNAL 5 /* ... */ #define LED_ASSERTION 6 /* ... */ #define LED_PANIC 7 /* ... */ #define LED_IDLE 8 /* shows idle state */ /************************************************************************************ * Public Data ************************************************************************************/ #ifndef __ASSEMBLY__ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /************************************************************************************ * Board Clock Configuration, called immediatelly after boot ************************************************************************************/ EXTERN void stm32_board_clockconfig(void); /************************************************************************************ * 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. * ************************************************************************************/ EXTERN void stm32_boardinitialize(void); /************************************************************************************ * Button support. (TODO: button is not yet supported) ************************************************************************************/ #ifdef CONFIG_ARCH_BUTTONS EXTERN void up_buttoninit(void); EXTERN uint8_t up_buttons(void); #endif #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __ASSEMBLY__ */ #endif /* __ARCH_BOARD_BOARD_H */