drivers/flash: add support for stm32h7 devices

Fixes #29831: Implements flash driver for stm32h7 devices.
The driver is independant from the other stm32 families (flash_stm32.c),
only the header interface is (mainly) common.

Signed-off-by: Nicolas VINCENT <[email protected]>

Author: nvincent-vossloh

drivers/flash/CMakeLists.txt

@@ -18,15 +18,19 @@ zephyr_library_sources_ifdef(CONFIG_SOC_FLASH_GECKO flash_gecko.c)
 zephyr_library_sources_ifdef(CONFIG_SOC_FLASH_RV32M1 soc_flash_rv32m1.c)
 
 if(CONFIG_SOC_FLASH_STM32)
-  zephyr_sources(flash_stm32.c)
+  if(CONFIG_SOC_SERIES_STM32H7X)
+    zephyr_sources_ifdef(CONFIG_SOC_SERIES_STM32H7X flash_stm32h7x.c)
+  else()
+    zephyr_sources(flash_stm32.c)
 
-  zephyr_sources_ifdef(CONFIG_SOC_FLASH_STM32_V1 flash_stm32_v1.c)
-  zephyr_sources_ifdef(CONFIG_SOC_SERIES_STM32F4X flash_stm32f4x.c)
-  zephyr_sources_ifdef(CONFIG_SOC_SERIES_STM32F7X flash_stm32f7x.c)
-  zephyr_sources_ifdef(CONFIG_SOC_SERIES_STM32L4X flash_stm32l4x.c)
-  zephyr_sources_ifdef(CONFIG_SOC_SERIES_STM32WBX flash_stm32wbx.c)
-  zephyr_sources_ifdef(CONFIG_SOC_SERIES_STM32G0X flash_stm32g0x.c)
-  zephyr_sources_ifdef(CONFIG_SOC_SERIES_STM32G4X flash_stm32g4x.c)
+    zephyr_sources_ifdef(CONFIG_SOC_FLASH_STM32_V1 flash_stm32_v1.c)
+    zephyr_sources_ifdef(CONFIG_SOC_SERIES_STM32F4X flash_stm32f4x.c)
+    zephyr_sources_ifdef(CONFIG_SOC_SERIES_STM32F7X flash_stm32f7x.c)
+    zephyr_sources_ifdef(CONFIG_SOC_SERIES_STM32L4X flash_stm32l4x.c)
+    zephyr_sources_ifdef(CONFIG_SOC_SERIES_STM32WBX flash_stm32wbx.c)
+    zephyr_sources_ifdef(CONFIG_SOC_SERIES_STM32G0X flash_stm32g0x.c)
+    zephyr_sources_ifdef(CONFIG_SOC_SERIES_STM32G4X flash_stm32g4x.c)
+  endif()
 endif()
 
 zephyr_include_directories_ifdef(

drivers/flash/Kconfig.stm32

@@ -7,7 +7,7 @@
 config SOC_FLASH_STM32
 	bool "STM32 flash driver"
 	depends on SOC_FAMILY_STM32
-	depends on (SOC_SERIES_STM32F0X || SOC_SERIES_STM32F1X || SOC_SERIES_STM32F3X || SOC_SERIES_STM32F4X || SOC_SERIES_STM32F7X || SOC_SERIES_STM32L0X  || SOC_SERIES_STM32L1X || SOC_SERIES_STM32L4X || SOC_SERIES_STM32WBX || SOC_SERIES_STM32G0X || SOC_SERIES_STM32G4X)
+	depends on (SOC_SERIES_STM32F0X || SOC_SERIES_STM32F1X || SOC_SERIES_STM32F3X || SOC_SERIES_STM32F4X || SOC_SERIES_STM32F7X || SOC_SERIES_STM32L0X  || SOC_SERIES_STM32L1X || SOC_SERIES_STM32L4X || SOC_SERIES_STM32WBX || SOC_SERIES_STM32G0X || SOC_SERIES_STM32G4X || SOC_SERIES_STM32H7X)
 	select FLASH_HAS_DRIVER_ENABLED
 	default y
 	select SOC_FLASH_STM32_V1 if SOC_SERIES_STM32F0X
@@ -21,15 +21,18 @@ config SOC_FLASH_STM32
 	select FLASH_PAGE_LAYOUT if SOC_SERIES_STM32L4X
 	select FLASH_PAGE_LAYOUT if SOC_SERIES_STM32WBX
 	select FLASH_PAGE_LAYOUT if SOC_SERIES_STM32G4X
+	select FLASH_PAGE_LAYOUT if SOC_SERIES_STM32H7X
 	select FLASH_HAS_PAGE_LAYOUT if SOC_SERIES_STM32G0X
 	select FLASH_HAS_PAGE_LAYOUT if SOC_SERIES_STM32F4X
 	select FLASH_HAS_PAGE_LAYOUT if SOC_SERIES_STM32F7X
 	select FLASH_HAS_PAGE_LAYOUT if SOC_SERIES_STM32L4X
 	select FLASH_HAS_PAGE_LAYOUT if SOC_SERIES_STM32WBX
 	select FLASH_HAS_PAGE_LAYOUT if SOC_SERIES_STM32G4X
+	select FLASH_HAS_PAGE_LAYOUT if SOC_SERIES_STM32H7X
 	help
 	  Enable STM32F0x, STM32F1x, STM32F3x, STM32F4x, STM32F7x, STM32L0x,
-	  STM32L1x, STM32L4x, STM32WBx, STM32G0x or STM32G4x series flash driver.
+	  STM32L1x, STM32L4x, STM32WBx, STM32G0x, STM32G4x or STM3H7x series
+	  flash driver.
 
 config SOC_FLASH_STM32_V1
 	bool

drivers/flash/flash_stm32.h

@@ -13,7 +13,8 @@
 	defined(CONFIG_SOC_SERIES_STM32F1X) || \
 	defined(CONFIG_SOC_SERIES_STM32F3X) || \
 	defined(CONFIG_SOC_SERIES_STM32G0X) || \
-	defined(CONFIG_SOC_SERIES_STM32G4X)
+	defined(CONFIG_SOC_SERIES_STM32G4X) || \
+	defined(CONFIG_SOC_SERIES_STM32H7X)
 #include <drivers/clock_control.h>
 #include <drivers/clock_control/stm32_clock_control.h>
 #endif
@@ -25,7 +26,8 @@ struct flash_stm32_priv {
 	defined(CONFIG_SOC_SERIES_STM32F1X) || \
 	defined(CONFIG_SOC_SERIES_STM32F3X) || \
 	defined(CONFIG_SOC_SERIES_STM32G0X) || \
-	defined(CONFIG_SOC_SERIES_STM32G4X)
+	defined(CONFIG_SOC_SERIES_STM32G4X) || \
+	defined(CONFIG_SOC_SERIES_STM32H7X)
 	/* clock subsystem driving this peripheral */
 	struct stm32_pclken pclken;
 #endif