core: USB: add STM32U5xx support

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>

Author: fpistm

cores/arduino/stm32/usb/usbd_conf.c

@@ -51,7 +51,7 @@ PCD_HandleTypeDef g_hpcd;
 void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd)
 {
   const PinMap *map = NULL;
-#if defined(PWR_CR2_USV)
+#if defined(PWR_CR2_USV) || defined(PWR_SVMCR_USV)
   /* Enable VDDUSB on Pwrctrl CR2 register*/
   HAL_PWREx_EnableVddUSB();
 #endif
@@ -136,8 +136,10 @@ void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd)
 #ifdef __HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_RISING_EDGE
       __HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_RISING_EDGE();
 #endif
+#ifdef __HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_IT
       __HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_IT();
-#if !defined(STM32L4xx)
+#endif
+#if !defined(STM32L4xx) && !defined(STM32U5xx)
       /* Set EXTI Wakeup Interrupt priority */
       HAL_NVIC_SetPriority(OTG_FS_WKUP_IRQn, USBD_IRQ_PRIO, USBD_IRQ_SUBPRIO);
 

variants/STM32U5xx/U575Z(G-I)TxQ_U585ZETxQ/variant_NUCLEO_U575ZI_Q.cpp

@@ -175,6 +175,7 @@ WEAK void SystemClock_Config(void)
   RCC_OscInitTypeDef RCC_OscInitStruct = {};
   RCC_ClkInitTypeDef RCC_ClkInitStruct = {};
   RCC_PeriphCLKInitTypeDef PeriphClkInit = {};
+  RCC_CRSInitTypeDef RCC_CRSInitStruct = {};
 
   /** Configure the main internal regulator output voltage
   */
@@ -232,6 +233,19 @@ WEAK void SystemClock_Config(void)
   if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) {
     Error_Handler();
   }
+  /** Enable the SYSCFG APB clock
+  */
+  __HAL_RCC_CRS_CLK_ENABLE();
+  /** Configures CRS
+  */
+  RCC_CRSInitStruct.Prescaler = RCC_CRS_SYNC_DIV1;
+  RCC_CRSInitStruct.Source = RCC_CRS_SYNC_SOURCE_USB;
+  RCC_CRSInitStruct.Polarity = RCC_CRS_SYNC_POLARITY_RISING;
+  RCC_CRSInitStruct.ReloadValue = __HAL_RCC_CRS_RELOADVALUE_CALCULATE(48000000, 1000);
+  RCC_CRSInitStruct.ErrorLimitValue = 34;
+  RCC_CRSInitStruct.HSI48CalibrationValue = 32;
+
+  HAL_RCCEx_CRSConfig(&RCC_CRSInitStruct);
 }
 
 #ifdef __cplusplus