mcuboot supports the stm32 external flash in XiP mode #2154
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With CONFIG_STM32_MEMMAP flag get NOR flash 32 bytes header Read the NOR flash to get header of the image. The FLASH_DEVICE is now the external NOR defined by the board device tree to be the first qspi/ospi/xspi instance (not necessarily zephyr, flash-controller) Signed-off-by: Francois Ramu <francois.ramu@st.com>
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requires the zephyrproject-rtos/zephyr#82275 which introduces the nucleo_h7s3l8 target |
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@FRASTM Any plans to move forward with this PR? some CI issues to be fixed (Primarily caused by missing "Signed-off-by: Francois RAMU francois.ramu@st.com" in some commits) |
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| zephyr,flash = &flash0; |
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this should be in the board dts in zephyr
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it is in each board dts for zephyr, so I think I can remove it from each overlay
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correct sign-off |
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| / { | ||
| chosen { | ||
| zephyr,flash = &flash0; |
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this whole file shouldn't be needed since flash is already set here: https://github.com/zephyrproject-rtos/zephyr/blob/main/boards/st/nucleo_h7s3l8/nucleo_h7s3l8.dts#L22 and code partition will be applied automatically via app.overlay
| status = "okay"; | ||
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| partitions { | ||
| compatible = "fixed-partitions"; |
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this should be in the upstream zephyr board so it's visible to everything
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The xspi1 node is not enabled in the zephyr boards/st/stm32h7s78_dk/
then moving the overlay from mcuboot to zephyr board DTS will create a dependency with another next PR in zephyr (a PR to add the xspi1 node)
Define the stm32 disco board configuration to set the STM32 XIP mode that will enable the MemoryMapped mode. See Kconfig of the stm32 soc. There is a app.overlay to Choose the mcu_boot partition where to build ../bootloader/mcuboot/boot/zephyr Signed-off-by: Francois Ramu <francois.ramu@st.com>
Define the stm32 disco board configuration to set the STM32 XIP mode that will enable the MemoryMapped mode. See Kconfig of the stm32 soc. There is a app.overlay to Choose the mcu_boot partition where to build ../bootloader/mcuboot/boot/zephyr Signed-off-by: Francois Ramu <francois.ramu@st.com>
Define the overlay for the stm32h7s78 disco kit xpsi peripheral Signed-off-by: Francois Ramu <francois.ramu@st.com>
Define the stm32 nucleo board configuration to set the STM32 XIP mode that will enable the MemoryMapped mode. See Kconfig of the stm32 soc. There is app.overlay to Choose the mcu_boot partition where to build ../bootloader/mcuboot/boot/zephyr Signed-off-by: Francois Ramu <francois.ramu@st.com>
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@FRASTM I had to add CONFIG_BOOT_MAX_IMG_SECTORS_AUTO=n CONFIG_BOOT_MAX_IMG_SECTORS=256 as well to get it working.
With the following memory layout in board dts:
/* 128KB sector size */
&flash0 {
partitions {
boot_partition: partition@0 {
label = "mcuboot";
reg = <0x00000000 DT_SIZE_K(128)>;
};
};
};
/* Sector erase 64KB uniform granularity */
/* Subsector erase 4KB, 32KB granularity */
&mt25ql512ab1 {
status = "okay";
partitions {
slot0_partition: partition@0 {
label = "image-0";
reg = <0x00000000 DT_SIZE_K(2048)>;
};
slot1_partition: partition@200000 {
label = "image-1";
reg = <0x00200000 DT_SIZE_K(2048)>;
};
storage_partition: partition@400000 {
label = "storage";
reg = <0x00400000 DT_SIZE_K(128)>;
};
};
};
New version of the old PR #1891
Adding the stm32h7s3l8 nucleo board
Following zephyrproject-rtos/zephyr#76305
Build the application with sysbuild for the nucleo_h7S3L8 :