boot: zephyr: socs: stm32h7s3xx: Add support for ext_flash_app variant #2554
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On the same example as stm32h7s7xx, introduce ext_flash_app variant for stm32h7s3xx in mcuboot. This allows chainloading applications in ext flash from a mcuboot application running in internal flash. Similarly, BOOT_MAX_IMG_SECTORS_AUTO is no longer needed to be disabled after including the 'soc-nv-flash' binding in the 'st,stm32-xspi-nor' binding, which provides 'erase-block-size' and 'write-block-size' to external Flash DT node. Remove the no longer required Kconfig fragment for nucleo_h7s3l8. Signed-off-by: Thomas Decker <[email protected]>
nordicjm
approved these changes
Nov 19, 2025
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@erwango please review and ping when you want this merged |
TD-JBL
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erwango
approved these changes
Nov 19, 2025
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Based on PR #2510
On the same example as stm32h7s7xx, introduce ext_flash_app variant for stm32h7s3xx in mcuboot.
This allows chainloading applications in ext flash from a mcuboot application running in internal flash.
Similarly, BOOT_MAX_IMG_SECTORS_AUTO is no longer needed to be disabled after including the 'soc-nv-flash' binding in the 'st,stm32-xspi-nor' binding, which provides 'erase-block-size' and 'write-block-size' to external Flash DT node.
Remove the no longer required Kconfig fragment for nucleo_h7s3l8.