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Diffstat (limited to 'os/hal/platforms/STM32F4xx/hal_lld.c')
-rw-r--r--os/hal/platforms/STM32F4xx/hal_lld.c238
1 files changed, 0 insertions, 238 deletions
diff --git a/os/hal/platforms/STM32F4xx/hal_lld.c b/os/hal/platforms/STM32F4xx/hal_lld.c
deleted file mode 100644
index cfffbb3da..000000000
--- a/os/hal/platforms/STM32F4xx/hal_lld.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/*
- ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
-
- 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 STM32F4xx/hal_lld.c
- * @brief STM32F4xx/STM32F2xx HAL subsystem low level driver source.
- *
- * @addtogroup HAL
- * @{
- */
-
-/* TODO: LSEBYP like in F3.*/
-
-#include "ch.h"
-#include "hal.h"
-
-/*===========================================================================*/
-/* Driver local definitions. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver exported variables. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local variables and types. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local functions. */
-/*===========================================================================*/
-
-/**
- * @brief Initializes the backup domain.
- */
-static void hal_lld_backup_domain_init(void) {
-
- /* Backup domain access enabled and left open.*/
- PWR->CR |= PWR_CR_DBP;
-
- /* Reset BKP domain if different clock source selected.*/
- if ((RCC->BDCR & STM32_RTCSEL_MASK) != STM32_RTCSEL) {
- /* Backup domain reset.*/
- RCC->BDCR = RCC_BDCR_BDRST;
- RCC->BDCR = 0;
- }
-
- /* If enabled then the LSE is started.*/
-#if STM32_LSE_ENABLED
- RCC->BDCR |= RCC_BDCR_LSEON;
- while ((RCC->BDCR & RCC_BDCR_LSERDY) == 0)
- ; /* Waits until LSE is stable. */
-#endif
-
-#if STM32_RTCSEL != STM32_RTCSEL_NOCLOCK
- /* If the backup domain hasn't been initialized yet then proceed with
- initialization.*/
- if ((RCC->BDCR & RCC_BDCR_RTCEN) == 0) {
- /* Selects clock source.*/
- RCC->BDCR |= STM32_RTCSEL;
-
- /* RTC clock enabled.*/
- RCC->BDCR |= RCC_BDCR_RTCEN;
- }
-#endif /* STM32_RTCSEL != STM32_RTCSEL_NOCLOCK */
-}
-
-/*===========================================================================*/
-/* Driver interrupt handlers. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * @brief Low level HAL driver initialization.
- *
- * @notapi
- */
-void hal_lld_init(void) {
-
- /* Reset of all peripherals. AHB3 is not reseted because it could have
- been initialized in the board initialization file (board.c).*/
- rccResetAHB1(~0);
- rccResetAHB2(~0);
- rccResetAHB3(~0);
- rccResetAPB1(~RCC_APB1RSTR_PWRRST);
- rccResetAPB2(~0);
-
- /* SysTick initialization using the system clock.*/
- SysTick->LOAD = STM32_HCLK / CH_CFG_FREQUENCY - 1;
- SysTick->VAL = 0;
- SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
- SysTick_CTRL_ENABLE_Msk |
- SysTick_CTRL_TICKINT_Msk;
-
- /* DWT cycle counter enable.*/
- SCS_DEMCR |= SCS_DEMCR_TRCENA;
- DWT_CTRL |= DWT_CTRL_CYCCNTENA;
-
- /* PWR clock enabled.*/
- rccEnablePWRInterface(FALSE);
-
- /* Initializes the backup domain.*/
- hal_lld_backup_domain_init();
-
-#if defined(STM32_DMA_REQUIRED)
- dmaInit();
-#endif
-
- /* Programmable voltage detector enable.*/
-#if STM32_PVD_ENABLE
- PWR->CR |= PWR_CR_PVDE | (STM32_PLS & STM32_PLS_MASK);
-#endif /* STM32_PVD_ENABLE */
-}
-
-/**
- * @brief STM32F2xx clocks and PLL initialization.
- * @note All the involved constants come from the file @p board.h.
- * @note This function should be invoked just after the system reset.
- *
- * @special
- */
-void stm32_clock_init(void) {
-
-#if !STM32_NO_INIT
- /* PWR clock enable.*/
- RCC->APB1ENR = RCC_APB1ENR_PWREN;
-
- /* PWR initialization.*/
-#if defined(STM32F4XX) || defined(__DOXYGEN__)
- PWR->CR = STM32_VOS;
- while ((PWR->CSR & PWR_CSR_VOSRDY) == 0)
- ; /* Waits until power regulator is stable. */
-#else
- PWR->CR = 0;
-#endif
-
- /* Initial clocks setup and wait for HSI stabilization, the MSI clock is
- always enabled because it is the fallback clock when PLL the fails.*/
- RCC->CR |= RCC_CR_HSION;
- while ((RCC->CR & RCC_CR_HSIRDY) == 0)
- ; /* Waits until HSI is stable. */
-
-#if STM32_HSE_ENABLED
- /* HSE activation.*/
-#if defined(STM32_HSE_BYPASS)
- /* HSE Bypass.*/
- RCC->CR |= RCC_CR_HSEON | RCC_CR_HSEBYP;
-#else
- /* No HSE Bypass.*/
- RCC->CR |= RCC_CR_HSEON;
-#endif
- while ((RCC->CR & RCC_CR_HSERDY) == 0)
- ; /* Waits until HSE is stable. */
-#endif
-
-#if STM32_LSI_ENABLED
- /* LSI activation.*/
- RCC->CSR |= RCC_CSR_LSION;
- while ((RCC->CSR & RCC_CSR_LSIRDY) == 0)
- ; /* Waits until LSI is stable. */
-#endif
-
-#if STM32_LSE_ENABLED
- /* LSE activation, have to unlock the register.*/
- if ((RCC->BDCR & RCC_BDCR_LSEON) == 0) {
- PWR->CR |= PWR_CR_DBP;
- RCC->BDCR |= RCC_BDCR_LSEON;
- PWR->CR &= ~PWR_CR_DBP;
- }
- while ((RCC->BDCR & RCC_BDCR_LSERDY) == 0)
- ; /* Waits until LSE is stable. */
-#endif
-
-#if STM32_ACTIVATE_PLL
- /* PLL activation.*/
- RCC->PLLCFGR = STM32_PLLQ | STM32_PLLSRC | STM32_PLLP | STM32_PLLN |
- STM32_PLLM;
- RCC->CR |= RCC_CR_PLLON;
- while (!(RCC->CR & RCC_CR_PLLRDY))
- ; /* Waits until PLL is stable. */
-#endif
-
-#if STM32_ACTIVATE_PLLI2S
- /* PLLI2S activation.*/
- RCC->PLLI2SCFGR = STM32_PLLI2SR | STM32_PLLI2SN;
- RCC->CR |= RCC_CR_PLLI2SON;
- while (!(RCC->CR & RCC_CR_PLLI2SRDY))
- ; /* Waits until PLLI2S is stable. */
-#endif
-
- /* Other clock-related settings (dividers, MCO etc).*/
- RCC->CFGR |= STM32_MCO2PRE | STM32_MCO2SEL | STM32_MCO1PRE | STM32_MCO1SEL |
- STM32_RTCPRE | STM32_PPRE2 | STM32_PPRE1 | STM32_HPRE;
-
- /* Flash setup.*/
-#if defined(STM32_USE_REVISION_A_FIX)
- /* Some old revisions of F4x MCUs randomly crashes with compiler
- optimizations enabled AND flash caches enabled. */
- if ((DBGMCU->IDCODE == 0x20006411) && (SCB->CPUID == 0x410FC241))
- FLASH->ACR = FLASH_ACR_PRFTEN | STM32_FLASHBITS;
- else
- FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN |
- FLASH_ACR_DCEN | STM32_FLASHBITS;
-#else
- FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN |
- FLASH_ACR_DCEN | STM32_FLASHBITS;
-#endif
-
- /* Switching to the configured clock source if it is different from MSI.*/
-#if (STM32_SW != STM32_SW_HSI)
- RCC->CFGR |= STM32_SW; /* Switches on the selected clock source. */
- while ((RCC->CFGR & RCC_CFGR_SWS) != (STM32_SW << 2))
- ;
-#endif
-#endif /* STM32_NO_INIT */
-
- /* SYSCFG clock enabled here because it is a multi-functional unit shared
- among multiple drivers.*/
- rccEnableAPB2(RCC_APB2ENR_SYSCFGEN, TRUE);
-}
-
-/** @} */
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