Group system IP clock enable in separate function called at init

This new function could be called by STM32duino_Low_Power library

Signed-off-by: Alexandre Bourdiol <alexandre.bourdiol@st.com>

Author: ABOSTM

cores/arduino/stm32/clock.h

@@ -37,6 +37,7 @@ typedef enum {
 uint32_t getCurrentMillis(void);
 uint32_t getCurrentMicros(void);
 
+void configIPClock(void);
 void enableClock(sourceClock_t source);
 void configHSECapacitorTuning(void);
 

cores/arduino/stm32/usb/usbd_if.c

@@ -151,7 +151,6 @@ WEAK void USBD_reenumerate(void)
    * do not manage the internal pull-up, so manage
    * internal pull-up manually.
    */
-  __HAL_RCC_SYSCFG_CLK_ENABLE();
   LL_SYSCFG_DisableUSBPullUp();
   delay(USBD_ENUM_DELAY);
   LL_SYSCFG_EnableUSBPullUp();

libraries/SrcWrapper/src/stm32/clock.c

@@ -152,6 +152,28 @@ void configHSECapacitorTuning(void)
 #endif
 }
 
+/**
+  * @brief  This function enables clocks for some system IP
+  * @param  None
+  * @retval None
+  */
+void configIPClock(void)
+{
+#ifdef HSEM_BASE
+  __HAL_RCC_HSEM_CLK_ENABLE();
+#endif
+
+#if defined(__HAL_RCC_PWR_CLK_ENABLE)
+  /* Enable PWR clock, needed for example: voltage scaling, low power ... */
+  __HAL_RCC_PWR_CLK_ENABLE();
+#endif
+
+#if defined(__HAL_RCC_SYSCFG_CLK_ENABLE)
+  /* Enable SYSCFG clock, needed for example: Pin remap or Analog switch ... */
+  __HAL_RCC_SYSCFG_CLK_ENABLE();
+#endif
+}
+
 #ifdef __cplusplus
 }
 #endif

libraries/SrcWrapper/src/stm32/hw_config.c

@@ -26,6 +26,8 @@ extern "C" {
   */
 void hw_config_init(void)
 {
+  configIPClock();
+
   /* Init DWT if present */
 #ifdef DWT_BASE
   dwt_init();
@@ -34,17 +36,8 @@ void hw_config_init(void)
   /* Initialize the HAL */
   HAL_Init();
 
-#ifdef HSEM_BASE
-  __HAL_RCC_HSEM_CLK_ENABLE();
-#endif
-
   configHSECapacitorTuning();
 
-#if defined(__HAL_RCC_PWR_CLK_ENABLE)
-  /* Enable PWR clock, needed for example: voltage scaling, low power ... */
-  __HAL_RCC_PWR_CLK_ENABLE();
-#endif
-
   /* Configure the system clock */
   SystemClock_Config();
 

libraries/SrcWrapper/src/stm32/pinmap.c

@@ -74,7 +74,6 @@ void pin_function(PinName pin, int function)
 
   /* Handle pin remap if any */
 #if defined(LL_SYSCFG_PIN_RMP_PA11) && defined(LL_SYSCFG_PIN_RMP_PA12) || defined(SYSCFG_CFGR1_PA11_PA12_RMP)
-  __HAL_RCC_SYSCFG_CLK_ENABLE();
   switch (pin & PNAME_MASK) {
 #if defined(SYSCFG_CFGR1_PA11_PA12_RMP)
     /* Disable PIN pair PA11/12 mapped instead of PA9/10 */

libraries/SrcWrapper/src/stm32/uart.c

@@ -272,12 +272,6 @@ void uart_init(serial_t *obj, uint32_t baudrate, uint32_t databits, uint32_t par
   }
 #endif
 
-#if defined(STM32F091xC) || defined (STM32F098xx)
-  /* Enable SYSCFG Clock */
-  /* Required to get SYSCFG interrupt status register */
-  __HAL_RCC_SYSCFG_CLK_ENABLE();
-#endif
-
   /* Configure UART GPIO pins */
   pinmap_pinout(obj->pin_tx, PinMap_UART_TX);
   if (uart_rx != NP) {