Merge pull request #2336 from hathach/fix-h7-otg_fs-wfi

Fix h7 running on fullspeed phy has issue with WFI

Author: hathach

hw/bsp/stm32h7/boards/daisyseed/board.h

@@ -55,7 +55,7 @@
 //--------------------------------------------------------------------+
 // RCC Clock
 //--------------------------------------------------------------------+
-static inline void board_stm32h7_clock_init(void)
+static inline void SystemClock_Config(void)
 {
   RCC_ClkInitTypeDef RCC_ClkInitStruct = { 0 };
   RCC_OscInitTypeDef RCC_OscInitStruct = { 0 };

hw/bsp/stm32h7/boards/stm32h723nucleo/board.h

@@ -62,7 +62,7 @@
 //--------------------------------------------------------------------+
 // RCC Clock
 //--------------------------------------------------------------------+
-static inline void board_stm32h7_clock_init(void)
+static inline void SystemClock_Config(void)
 {
   RCC_ClkInitTypeDef RCC_ClkInitStruct = { 0 };
   RCC_OscInitTypeDef RCC_OscInitStruct = { 0 };

hw/bsp/stm32h7/boards/stm32h743eval/board.h

@@ -61,7 +61,7 @@
 //--------------------------------------------------------------------+
 // RCC Clock
 //--------------------------------------------------------------------+
-static inline void board_stm32h7_clock_init(void) {
+static inline void SystemClock_Config(void) {
   RCC_ClkInitTypeDef RCC_ClkInitStruct = { 0 };
   RCC_OscInitTypeDef RCC_OscInitStruct = { 0 };
   RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = { 0 };

hw/bsp/stm32h7/boards/stm32h743nucleo/board.h

@@ -53,60 +53,73 @@
 //--------------------------------------------------------------------+
 // RCC Clock
 //--------------------------------------------------------------------+
-static inline void board_stm32h7_clock_init(void)
-{
-  RCC_ClkInitTypeDef RCC_ClkInitStruct = { 0 };
-  RCC_OscInitTypeDef RCC_OscInitStruct = { 0 };
+static inline void SystemClock_Config(void) {
+  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
+  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
+
+  /** Supply configuration update enable
+  */
+  HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
 
-  /* The PWR block is always enabled on the H7 series- there is no clock
-     enable. For now, use the default VOS3 scale mode (lowest) and limit clock
-     frequencies to avoid potential current draw problems from bus
-     power when using the max clock speeds throughout the chip. */
+  /** Configure the main internal regulator output voltage
+  */
+  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
 
-  /* Enable HSE Oscillator and activate PLL1 with HSE as source */
+  while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}
+
+  /** Initializes the RCC Oscillators according to the specified parameters
+  * in the RCC_OscInitTypeDef structure.
+  */
   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
-  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
-  RCC_OscInitStruct.HSIState = RCC_HSI_OFF;
-  RCC_OscInitStruct.CSIState = RCC_CSI_OFF;
+  RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
-  RCC_OscInitStruct.PLL.PLLM = HSE_VALUE/1000000;
-  RCC_OscInitStruct.PLL.PLLN = 336;
+  RCC_OscInitStruct.PLL.PLLM = 1;
+  RCC_OscInitStruct.PLL.PLLN = 100;
   RCC_OscInitStruct.PLL.PLLP = 2;
-  RCC_OscInitStruct.PLL.PLLQ = 7;
-  RCC_OscInitStruct.PLL.PLLR = 2; /* Unused */
-  RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_0;
-  RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOMEDIUM;
+  RCC_OscInitStruct.PLL.PLLQ = 4;
+  RCC_OscInitStruct.PLL.PLLR = 2;
+  RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_3;
+  RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
   RCC_OscInitStruct.PLL.PLLFRACN = 0;
-  HAL_RCC_OscConfig(&RCC_OscInitStruct);
-
-  RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | \
-    RCC_CLOCKTYPE_D1PCLK1 | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2 | \
-    RCC_CLOCKTYPE_D3PCLK1);
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+  /** Initializes the CPU, AHB and APB buses clocks
+  */
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
+                                |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2
+                                |RCC_CLOCKTYPE_D3PCLK1|RCC_CLOCKTYPE_D1PCLK1;
   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
   RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
-  RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV1;
-
-  /* Unlike on the STM32F4 family, it appears the maximum APB frequencies are
-     device-dependent- 120 MHz for this board according to Figure 2 of
-     the datasheet. Dividing by half will be safe for now. */
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
   RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;
   RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
   RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
   RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;
 
-  /* 4 wait states required for 168MHz and VOS3. */
-  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4);
-
-  /* Like on F4, on H7, USB's actual peripheral clock and bus clock are
-     separate. However, the main system PLL (PLL1) doesn't have a direct
-     connection to the USB peripheral clock to generate 48 MHz, so we do this
-     dance. This will connect PLL1's Q output to the USB peripheral clock. */
-  RCC_PeriphCLKInitTypeDef RCC_PeriphCLKInitStruct = { 0 };
-
-  RCC_PeriphCLKInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USB;
-  RCC_PeriphCLKInitStruct.UsbClockSelection = RCC_USBCLKSOURCE_PLL;
-  HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphCLKInitStruct);
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+  // Initialize USB clock
+  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = { 0 };
+  PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USB;
+  PeriphClkInitStruct.PLL3.PLL3M = 1;
+  PeriphClkInitStruct.PLL3.PLL3N = 24;
+  PeriphClkInitStruct.PLL3.PLL3P = 2;
+  PeriphClkInitStruct.PLL3.PLL3Q = 4;
+  PeriphClkInitStruct.PLL3.PLL3R = 2;
+  PeriphClkInitStruct.PLL3.PLL3RGE = RCC_PLL3VCIRANGE_3;
+  PeriphClkInitStruct.PLL3.PLL3FRACN = 0;
+  PeriphClkInitStruct.UsbClockSelection = RCC_USBCLKSOURCE_PLL3;
+  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
+  {
+    Error_Handler();
+  }
 }
 
 static inline void board_stm32h7_post_init(void)