The idea here is to prepare for better per-board specialization
of the hooks function code.

Sponsored-By:   Precidata
---
 .../stm/nucleo-h743zi/stm32h7-bspstarthooks.c | 78 +++++++++++++++++++
 .../stm32h743i-eval/stm32h7-bspstarthooks.c   | 78 +++++++++++++++++++
 .../stm32h747i-disco/stm32h7-bspstarthooks.c  | 78 +++++++++++++++++++
 .../stm32h757i-eval/stm32h7-bspstarthooks.c   | 78 +++++++++++++++++++
 .../stm/stm32h7b3i-dk/stm32h7-bspstarthooks.c | 78 +++++++++++++++++++
 bsps/arm/stm32h7/include/bsp.h                |  6 ++
 bsps/arm/stm32h7/start/bspstarthooks.c        | 48 +-----------
 .../bsps/arm/stm32h7/bspnucleoh743zi.yml      |  1 +
 spec/build/bsps/arm/stm32h7/bspstm32h7.yml    |  1 +
 .../arm/stm32h7/bspstm32h747i-disco-m4.yml    |  1 +
 .../bsps/arm/stm32h7/bspstm32h747i-disco.yml  |  1 +
 .../arm/stm32h7/bspstm32h757i-eval-m4.yml     |  1 +
 .../bsps/arm/stm32h7/bspstm32h757i-eval.yml   |  1 +
 .../bsps/arm/stm32h7/bspstm32h7b3i-dk.yml     |  1 +
 14 files changed, 407 insertions(+), 44 deletions(-)
 create mode 100644 
bsps/arm/stm32h7/boards/stm/nucleo-h743zi/stm32h7-bspstarthooks.c
 create mode 100644 
bsps/arm/stm32h7/boards/stm/stm32h743i-eval/stm32h7-bspstarthooks.c
 create mode 100644 
bsps/arm/stm32h7/boards/stm/stm32h747i-disco/stm32h7-bspstarthooks.c
 create mode 100644 
bsps/arm/stm32h7/boards/stm/stm32h757i-eval/stm32h7-bspstarthooks.c
 create mode 100644 
bsps/arm/stm32h7/boards/stm/stm32h7b3i-dk/stm32h7-bspstarthooks.c

diff --git a/bsps/arm/stm32h7/boards/stm/nucleo-h743zi/stm32h7-bspstarthooks.c 
b/bsps/arm/stm32h7/boards/stm/nucleo-h743zi/stm32h7-bspstarthooks.c
new file mode 100644
index 0000000000..8d34e357ee
--- /dev/null
+++ b/bsps/arm/stm32h7/boards/stm/nucleo-h743zi/stm32h7-bspstarthooks.c
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/*
+ * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+#include <bsp.h>
+#include <bsp/bootcard.h>
+#include <bsp/linker-symbols.h>
+#include <bsp/start.h>
+#include <stm32h7/hal.h>
+#include <stm32h7/memory.h>
+#include <stm32h7/mpu-config.h>
+#include <rtems/score/armv7m.h>
+
+#include <string.h>
+
+void bsp_start_hook_0(void)
+{
+  if ((RCC->AHB3ENR & RCC_AHB3ENR_FMCEN) == 0) {
+    /*
+     * Only perform the low-level initialization if necessary.  An initialized
+     * FMC indicates that a boot loader already performed the low-level
+     * initialization.
+     */
+    SystemInit();
+    stm32h7_init_power();
+    stm32h7_init_oscillator();
+    stm32h7_init_clocks();
+    stm32h7_init_peripheral_clocks();
+    HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSI, RCC_MCODIV_1);
+    HAL_Init();
+    SystemInit_ExtMemCtl();
+  }
+
+#if __CORTEX_M == 0x07U
+  if ((SCB->CCR & SCB_CCR_IC_Msk) == 0) {
+    SCB_EnableICache();
+  }
+
+  if ((SCB->CCR & SCB_CCR_DC_Msk) == 0) {
+    SCB_EnableDCache();
+  }
+
+  _ARMV7M_MPU_Setup(stm32h7_config_mpu_region, 
stm32h7_config_mpu_region_count);
+#endif
+}
+
+void bsp_start_hook_1(void)
+{
+  bsp_start_copy_sections_compact();
+#if __CORTEX_M == 0x07U
+  SCB_CleanDCache();
+  SCB_InvalidateICache();
+#endif
+  bsp_start_clear_bss();
+}
diff --git 
a/bsps/arm/stm32h7/boards/stm/stm32h743i-eval/stm32h7-bspstarthooks.c 
b/bsps/arm/stm32h7/boards/stm/stm32h743i-eval/stm32h7-bspstarthooks.c
new file mode 100644
index 0000000000..8d34e357ee
--- /dev/null
+++ b/bsps/arm/stm32h7/boards/stm/stm32h743i-eval/stm32h7-bspstarthooks.c
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/*
+ * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+#include <bsp.h>
+#include <bsp/bootcard.h>
+#include <bsp/linker-symbols.h>
+#include <bsp/start.h>
+#include <stm32h7/hal.h>
+#include <stm32h7/memory.h>
+#include <stm32h7/mpu-config.h>
+#include <rtems/score/armv7m.h>
+
+#include <string.h>
+
+void bsp_start_hook_0(void)
+{
+  if ((RCC->AHB3ENR & RCC_AHB3ENR_FMCEN) == 0) {
+    /*
+     * Only perform the low-level initialization if necessary.  An initialized
+     * FMC indicates that a boot loader already performed the low-level
+     * initialization.
+     */
+    SystemInit();
+    stm32h7_init_power();
+    stm32h7_init_oscillator();
+    stm32h7_init_clocks();
+    stm32h7_init_peripheral_clocks();
+    HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSI, RCC_MCODIV_1);
+    HAL_Init();
+    SystemInit_ExtMemCtl();
+  }
+
+#if __CORTEX_M == 0x07U
+  if ((SCB->CCR & SCB_CCR_IC_Msk) == 0) {
+    SCB_EnableICache();
+  }
+
+  if ((SCB->CCR & SCB_CCR_DC_Msk) == 0) {
+    SCB_EnableDCache();
+  }
+
+  _ARMV7M_MPU_Setup(stm32h7_config_mpu_region, 
stm32h7_config_mpu_region_count);
+#endif
+}
+
+void bsp_start_hook_1(void)
+{
+  bsp_start_copy_sections_compact();
+#if __CORTEX_M == 0x07U
+  SCB_CleanDCache();
+  SCB_InvalidateICache();
+#endif
+  bsp_start_clear_bss();
+}
diff --git 
a/bsps/arm/stm32h7/boards/stm/stm32h747i-disco/stm32h7-bspstarthooks.c 
b/bsps/arm/stm32h7/boards/stm/stm32h747i-disco/stm32h7-bspstarthooks.c
new file mode 100644
index 0000000000..8d34e357ee
--- /dev/null
+++ b/bsps/arm/stm32h7/boards/stm/stm32h747i-disco/stm32h7-bspstarthooks.c
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/*
+ * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+#include <bsp.h>
+#include <bsp/bootcard.h>
+#include <bsp/linker-symbols.h>
+#include <bsp/start.h>
+#include <stm32h7/hal.h>
+#include <stm32h7/memory.h>
+#include <stm32h7/mpu-config.h>
+#include <rtems/score/armv7m.h>
+
+#include <string.h>
+
+void bsp_start_hook_0(void)
+{
+  if ((RCC->AHB3ENR & RCC_AHB3ENR_FMCEN) == 0) {
+    /*
+     * Only perform the low-level initialization if necessary.  An initialized
+     * FMC indicates that a boot loader already performed the low-level
+     * initialization.
+     */
+    SystemInit();
+    stm32h7_init_power();
+    stm32h7_init_oscillator();
+    stm32h7_init_clocks();
+    stm32h7_init_peripheral_clocks();
+    HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSI, RCC_MCODIV_1);
+    HAL_Init();
+    SystemInit_ExtMemCtl();
+  }
+
+#if __CORTEX_M == 0x07U
+  if ((SCB->CCR & SCB_CCR_IC_Msk) == 0) {
+    SCB_EnableICache();
+  }
+
+  if ((SCB->CCR & SCB_CCR_DC_Msk) == 0) {
+    SCB_EnableDCache();
+  }
+
+  _ARMV7M_MPU_Setup(stm32h7_config_mpu_region, 
stm32h7_config_mpu_region_count);
+#endif
+}
+
+void bsp_start_hook_1(void)
+{
+  bsp_start_copy_sections_compact();
+#if __CORTEX_M == 0x07U
+  SCB_CleanDCache();
+  SCB_InvalidateICache();
+#endif
+  bsp_start_clear_bss();
+}
diff --git 
a/bsps/arm/stm32h7/boards/stm/stm32h757i-eval/stm32h7-bspstarthooks.c 
b/bsps/arm/stm32h7/boards/stm/stm32h757i-eval/stm32h7-bspstarthooks.c
new file mode 100644
index 0000000000..8d34e357ee
--- /dev/null
+++ b/bsps/arm/stm32h7/boards/stm/stm32h757i-eval/stm32h7-bspstarthooks.c
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/*
+ * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+#include <bsp.h>
+#include <bsp/bootcard.h>
+#include <bsp/linker-symbols.h>
+#include <bsp/start.h>
+#include <stm32h7/hal.h>
+#include <stm32h7/memory.h>
+#include <stm32h7/mpu-config.h>
+#include <rtems/score/armv7m.h>
+
+#include <string.h>
+
+void bsp_start_hook_0(void)
+{
+  if ((RCC->AHB3ENR & RCC_AHB3ENR_FMCEN) == 0) {
+    /*
+     * Only perform the low-level initialization if necessary.  An initialized
+     * FMC indicates that a boot loader already performed the low-level
+     * initialization.
+     */
+    SystemInit();
+    stm32h7_init_power();
+    stm32h7_init_oscillator();
+    stm32h7_init_clocks();
+    stm32h7_init_peripheral_clocks();
+    HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSI, RCC_MCODIV_1);
+    HAL_Init();
+    SystemInit_ExtMemCtl();
+  }
+
+#if __CORTEX_M == 0x07U
+  if ((SCB->CCR & SCB_CCR_IC_Msk) == 0) {
+    SCB_EnableICache();
+  }
+
+  if ((SCB->CCR & SCB_CCR_DC_Msk) == 0) {
+    SCB_EnableDCache();
+  }
+
+  _ARMV7M_MPU_Setup(stm32h7_config_mpu_region, 
stm32h7_config_mpu_region_count);
+#endif
+}
+
+void bsp_start_hook_1(void)
+{
+  bsp_start_copy_sections_compact();
+#if __CORTEX_M == 0x07U
+  SCB_CleanDCache();
+  SCB_InvalidateICache();
+#endif
+  bsp_start_clear_bss();
+}
diff --git a/bsps/arm/stm32h7/boards/stm/stm32h7b3i-dk/stm32h7-bspstarthooks.c 
b/bsps/arm/stm32h7/boards/stm/stm32h7b3i-dk/stm32h7-bspstarthooks.c
new file mode 100644
index 0000000000..8d34e357ee
--- /dev/null
+++ b/bsps/arm/stm32h7/boards/stm/stm32h7b3i-dk/stm32h7-bspstarthooks.c
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/*
+ * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+#include <bsp.h>
+#include <bsp/bootcard.h>
+#include <bsp/linker-symbols.h>
+#include <bsp/start.h>
+#include <stm32h7/hal.h>
+#include <stm32h7/memory.h>
+#include <stm32h7/mpu-config.h>
+#include <rtems/score/armv7m.h>
+
+#include <string.h>
+
+void bsp_start_hook_0(void)
+{
+  if ((RCC->AHB3ENR & RCC_AHB3ENR_FMCEN) == 0) {
+    /*
+     * Only perform the low-level initialization if necessary.  An initialized
+     * FMC indicates that a boot loader already performed the low-level
+     * initialization.
+     */
+    SystemInit();
+    stm32h7_init_power();
+    stm32h7_init_oscillator();
+    stm32h7_init_clocks();
+    stm32h7_init_peripheral_clocks();
+    HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSI, RCC_MCODIV_1);
+    HAL_Init();
+    SystemInit_ExtMemCtl();
+  }
+
+#if __CORTEX_M == 0x07U
+  if ((SCB->CCR & SCB_CCR_IC_Msk) == 0) {
+    SCB_EnableICache();
+  }
+
+  if ((SCB->CCR & SCB_CCR_DC_Msk) == 0) {
+    SCB_EnableDCache();
+  }
+
+  _ARMV7M_MPU_Setup(stm32h7_config_mpu_region, 
stm32h7_config_mpu_region_count);
+#endif
+}
+
+void bsp_start_hook_1(void)
+{
+  bsp_start_copy_sections_compact();
+#if __CORTEX_M == 0x07U
+  SCB_CleanDCache();
+  SCB_InvalidateICache();
+#endif
+  bsp_start_clear_bss();
+}
diff --git a/bsps/arm/stm32h7/include/bsp.h b/bsps/arm/stm32h7/include/bsp.h
index 0ed9c361a5..08311bf51e 100644
--- a/bsps/arm/stm32h7/include/bsp.h
+++ b/bsps/arm/stm32h7/include/bsp.h
@@ -57,6 +57,12 @@ extern "C" {
 
 uint32_t stm32h7_systick_frequency(void);
 
+/* default functions */
+void stm32h7_init_power(void);
+void stm32h7_init_oscillator(void);
+void stm32h7_init_clocks(void);
+void stm32h7_init_peripheral_clocks(void);
+
 /** @} */
 
 #ifdef __cplusplus
diff --git a/bsps/arm/stm32h7/start/bspstarthooks.c 
b/bsps/arm/stm32h7/start/bspstarthooks.c
index 54df5a2da8..1be1182404 100644
--- a/bsps/arm/stm32h7/start/bspstarthooks.c
+++ b/bsps/arm/stm32h7/start/bspstarthooks.c
@@ -41,7 +41,7 @@ void HAL_MspInit(void)
   __HAL_RCC_SYSCFG_CLK_ENABLE();
 }
 
-static void init_power(void)
+void stm32h7_init_power(void)
 {
   HAL_PWREx_ConfigSupply(STM32H7_PWR_SUPPLY);
   __HAL_PWR_VOLTAGESCALING_CONFIG(stm32h7_config_pwr_regulator_voltagescaling);
@@ -51,7 +51,7 @@ static void init_power(void)
   }
 }
 
-static void init_oscillator(void)
+void stm32h7_init_oscillator(void)
 {
   HAL_StatusTypeDef status;
 
@@ -61,7 +61,7 @@ static void init_oscillator(void)
   }
 }
 
-static void init_clocks(void)
+void stm32h7_init_clocks(void)
 {
   HAL_StatusTypeDef status;
 
@@ -74,7 +74,7 @@ static void init_clocks(void)
   }
 }
 
-static void init_peripheral_clocks(void)
+void stm32h7_init_peripheral_clocks(void)
 {
   HAL_StatusTypeDef status;
 
@@ -84,43 +84,3 @@ static void init_peripheral_clocks(void)
   }
 }
 
-void bsp_start_hook_0(void)
-{
-  if ((RCC->AHB3ENR & RCC_AHB3ENR_FMCEN) == 0) {
-    /*
-     * Only perform the low-level initialization if necessary.  An initialized
-     * FMC indicates that a boot loader already performed the low-level
-     * initialization.
-     */
-    SystemInit();
-    init_power();
-    init_oscillator();
-    init_clocks();
-    init_peripheral_clocks();
-    HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSI, RCC_MCODIV_1);
-    HAL_Init();
-    SystemInit_ExtMemCtl();
-  }
-
-#if __CORTEX_M == 0x07U
-  if ((SCB->CCR & SCB_CCR_IC_Msk) == 0) {
-    SCB_EnableICache();
-  }
-
-  if ((SCB->CCR & SCB_CCR_DC_Msk) == 0) {
-    SCB_EnableDCache();
-  }
-
-  _ARMV7M_MPU_Setup(stm32h7_config_mpu_region, 
stm32h7_config_mpu_region_count);
-#endif
-}
-
-void bsp_start_hook_1(void)
-{
-  bsp_start_copy_sections_compact();
-#if __CORTEX_M == 0x07U
-  SCB_CleanDCache();
-  SCB_InvalidateICache();
-#endif
-  bsp_start_clear_bss();
-}
diff --git a/spec/build/bsps/arm/stm32h7/bspnucleoh743zi.yml 
b/spec/build/bsps/arm/stm32h7/bspnucleoh743zi.yml
index 9a3e556eda..f36c93a8ae 100644
--- a/spec/build/bsps/arm/stm32h7/bspnucleoh743zi.yml
+++ b/spec/build/bsps/arm/stm32h7/bspnucleoh743zi.yml
@@ -14,6 +14,7 @@ links:
 - role: build-dependency
   uid: grp
 source:
+- bsps/arm/stm32h7/boards/stm/nucleo-h743zi/stm32h7-bspstarthooks.c
 - bsps/arm/stm32h7/boards/stm/nucleo-h743zi/stm32h7-config-clk.c
 - bsps/arm/stm32h7/boards/stm/nucleo-h743zi/stm32h7-config-osc.c
 - bsps/arm/stm32h7/boards/stm/nucleo-h743zi/stm32h7-config-per.c
diff --git a/spec/build/bsps/arm/stm32h7/bspstm32h7.yml 
b/spec/build/bsps/arm/stm32h7/bspstm32h7.yml
index 52d47295d9..fe0451850d 100644
--- a/spec/build/bsps/arm/stm32h7/bspstm32h7.yml
+++ b/spec/build/bsps/arm/stm32h7/bspstm32h7.yml
@@ -14,6 +14,7 @@ links:
 - role: build-dependency
   uid: grp
 source:
+- bsps/arm/stm32h7/boards/stm/stm32h743i-eval/stm32h7-bspstarthooks.c
 - bsps/arm/stm32h7/boards/stm/stm32h743i-eval/stm32h7-config-clk.c
 - bsps/arm/stm32h7/boards/stm/stm32h743i-eval/stm32h7-config-osc.c
 - bsps/arm/stm32h7/boards/stm/stm32h743i-eval/stm32h7-config-per.c
diff --git a/spec/build/bsps/arm/stm32h7/bspstm32h747i-disco-m4.yml 
b/spec/build/bsps/arm/stm32h7/bspstm32h747i-disco-m4.yml
index 6356ccf942..27b8c34db2 100644
--- a/spec/build/bsps/arm/stm32h7/bspstm32h747i-disco-m4.yml
+++ b/spec/build/bsps/arm/stm32h7/bspstm32h747i-disco-m4.yml
@@ -16,6 +16,7 @@ links:
 - role: build-dependency
   uid: tststm32h757i-eval
 source:
+- bsps/arm/stm32h7/boards/stm/stm32h747i-disco/stm32h7-bspstarthooks.c
 - bsps/arm/stm32h7/boards/stm/stm32h747i-disco/stm32h7-config-clk.c
 - bsps/arm/stm32h7/boards/stm/stm32h747i-disco/stm32h7-config-osc.c
 - bsps/arm/stm32h7/boards/stm/stm32h747i-disco/stm32h7-config-per.c
diff --git a/spec/build/bsps/arm/stm32h7/bspstm32h747i-disco.yml 
b/spec/build/bsps/arm/stm32h7/bspstm32h747i-disco.yml
index dcd5216391..8b13d16844 100644
--- a/spec/build/bsps/arm/stm32h7/bspstm32h747i-disco.yml
+++ b/spec/build/bsps/arm/stm32h7/bspstm32h747i-disco.yml
@@ -16,6 +16,7 @@ links:
 - role: build-dependency
   uid: tststm32h757i-eval
 source:
+- bsps/arm/stm32h7/boards/stm/stm32h747i-disco/stm32h7-bspstarthooks.c
 - bsps/arm/stm32h7/boards/stm/stm32h747i-disco/stm32h7-config-clk.c
 - bsps/arm/stm32h7/boards/stm/stm32h747i-disco/stm32h7-config-osc.c
 - bsps/arm/stm32h7/boards/stm/stm32h747i-disco/stm32h7-config-per.c
diff --git a/spec/build/bsps/arm/stm32h7/bspstm32h757i-eval-m4.yml 
b/spec/build/bsps/arm/stm32h7/bspstm32h757i-eval-m4.yml
index 4850396281..5e9819a308 100644
--- a/spec/build/bsps/arm/stm32h7/bspstm32h757i-eval-m4.yml
+++ b/spec/build/bsps/arm/stm32h7/bspstm32h757i-eval-m4.yml
@@ -16,6 +16,7 @@ links:
 - role: build-dependency
   uid: tststm32h757i-eval
 source:
+- bsps/arm/stm32h7/boards/stm/stm32h757i-eval/stm32h7-bspstarthooks.c
 - bsps/arm/stm32h7/boards/stm/stm32h757i-eval/stm32h7-config-clk.c
 - bsps/arm/stm32h7/boards/stm/stm32h757i-eval/stm32h7-config-osc.c
 - bsps/arm/stm32h7/boards/stm/stm32h757i-eval/stm32h7-config-per.c
diff --git a/spec/build/bsps/arm/stm32h7/bspstm32h757i-eval.yml 
b/spec/build/bsps/arm/stm32h7/bspstm32h757i-eval.yml
index c8a4df954a..5d7ee1348d 100644
--- a/spec/build/bsps/arm/stm32h7/bspstm32h757i-eval.yml
+++ b/spec/build/bsps/arm/stm32h7/bspstm32h757i-eval.yml
@@ -16,6 +16,7 @@ links:
 - role: build-dependency
   uid: tststm32h757i-eval
 source:
+- bsps/arm/stm32h7/boards/stm/stm32h757i-eval/stm32h7-bspstarthooks.c
 - bsps/arm/stm32h7/boards/stm/stm32h757i-eval/stm32h7-config-clk.c
 - bsps/arm/stm32h7/boards/stm/stm32h757i-eval/stm32h7-config-osc.c
 - bsps/arm/stm32h7/boards/stm/stm32h757i-eval/stm32h7-config-per.c
diff --git a/spec/build/bsps/arm/stm32h7/bspstm32h7b3i-dk.yml 
b/spec/build/bsps/arm/stm32h7/bspstm32h7b3i-dk.yml
index 907c107a33..20f5cb9a72 100644
--- a/spec/build/bsps/arm/stm32h7/bspstm32h7b3i-dk.yml
+++ b/spec/build/bsps/arm/stm32h7/bspstm32h7b3i-dk.yml
@@ -16,6 +16,7 @@ links:
 - role: build-dependency
   uid: ../../tstsmallmem
 source:
+- bsps/arm/stm32h7/boards/stm/stm32h7b3i-dk/stm32h7-bspstarthooks.c
 - bsps/arm/stm32h7/boards/stm/stm32h7b3i-dk/stm32h7-config-clk.c
 - bsps/arm/stm32h7/boards/stm/stm32h7b3i-dk/stm32h7-config-osc.c
 - bsps/arm/stm32h7/boards/stm/stm32h7b3i-dk/stm32h7-config-per.c
-- 
2.25.1

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