Commit a2ff3872 authored by Francois Ramu's avatar Francois Ramu Committed by Alberto Escolar
Browse files

soc: stm32: symbol for application XiP from xspi external memory 



Add a STM32_APP_IN_EXT_FLASH to determine that an application
is eXecuting in Place on an external xspi flash.
That will control the clock init of this external xspi controller.

Signed-off-by: default avatarFrancois Ramu <francois.ramu@st.com>
parent c49ec809

soc/st/stm32/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -104,4 +104,12 @@ config STM32_BACKUP_PROTECTION 
	  Enabled for SoCs for which access protection to backup domain

	  resources needs to be explicitly handled.



config STM32_APP_IN_EXT_FLASH

	bool

	help

	  Allows the SoC clock driver to correctly initialize the

	  Q/O/XSPI controller clocks when the application is residing

	  in external Flash and is chainloaded with MCUboot.

	  Whether the app is eXecuted in Place (XiP) depends on the MCUboot mode used.



endif # SOC_FAMILY_STM32

soc/st/stm32/Kconfig.defconfig

+3 −0
Original line number Diff line number Diff line
@@ -89,6 +89,9 @@ config FLASH_BASE_ADDRESS 
		if $(DT_FLASH_PARENT_IS_XSPI) || $(DT_FLASH_PARENT_IS_OSPI) || $(DT_FLASH_PARENT_IS_QSPI)

	default $(dt_chosen_reg_addr_hex,$(DT_CHOSEN_Z_FLASH))



config STM32_APP_IN_EXT_FLASH

	default $(DT_FLASH_PARENT_IS_XSPI)



# The XSPI PSRAM driver creates a SMH region with attribute SMH_REG_ATTR_EXTERNAL (2)

# If applicable set the LTDC / VIDEO_BUFFER SMH attribute to SMH_REG_ATTR_EXTERNAL (2)

# in order to be able to allocate from the XSPI PSRAM

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