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 <[email protected]>
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requires the zephyrproject-rtos/zephyr#82275 which introduces the nucleo_h7s3l8 target |
de-nordic
added
area: zephyr
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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 [email protected]" in some commits) |
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I had to add CONFIG_BOOT_MAX_IMG_SECTORS_AUTO=n CONFIG_BOOT_MAX_IMG_SECTORS=256 to get it working.
With the following memory layout:
/* 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)>;
};
scratch_partition: partition@400000 {
label = "image-scratch";
reg = <0x00400000 DT_SIZE_K(2048)>;
};
storage_partition: partition@600000 {
label = "storage";
reg = <0x00600000 DT_SIZE_K(128)>;
};
};
};
| */ | ||
| / { | ||
| chosen { | ||
| 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 |
Define the stm32 disco board configuration to set the STM32 XIP mode that will enable the MemoryMapped mode. See Kconfig of the stm32 soc. Choose the mcu_boot partition where to build ../bootloader/mcuboot/boot/zephyr Signed-off-by: Francois Ramu <[email protected]>
Define the stm32 disco board configuration to set the STM32 XIP mode that will enable the MemoryMapped mode. See Kconfig of the stm32 soc. Choose the mcu_boot partition where to build ../bootloader/mcuboot/boot/zephyr Signed-off-by: Francois Ramu <[email protected]>
Define the overlay for the stm32h7s78 disco kit xpsi peripheral Signed-off-by: Francois Ramu <[email protected]>
Define the stm32 nucleo board configuration to set the STM32 XIP mode that will enable the MemoryMapped mode. See Kconfig of the stm32 soc. Choose the mcu_boot partition where to build ../bootloader/mcuboot/boot/zephyr Signed-off-by: Francois Ramu <[email protected]>
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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
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| / { | ||
| chosen { | ||
| zephyr,code-partition = &boot_partition; |
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this file can go, app.overlay already does this
| 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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| / { | ||
| chosen { | ||
| zephyr,code-partition = &boot_partition; |
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as other, can be deleted
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| / { | ||
| chosen { | ||
| zephyr,code-partition = &boot_partition; |
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as other comment for all .overlay files
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 :