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stm32h7rs run application in external flash memory XIP #88052

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stm32h7rs run application in external flash memory XIP #88052

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92a6f33
boards: st: stm32h7s3l8 nucleo board for XiP on external flash
FRASTM Nov 18, 2024
399f60d
boards: arm: stm32h7s78 disco kit for XiP on external flash
FRASTM May 27, 2024
3f56156
samples: appli dev: code reloc running on stm32h7rs target boards
FRASTM May 5, 2025
2506a1f
samples: sysbuild: with mcu_boot on the stm32h7rs targets
FRASTM May 7, 2025
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5 changes: 5 additions & 0 deletions boards/st/nucleo_h7s3l8/board.cmake
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Original file line number Diff line number Diff line change
@@ -1,7 +1,12 @@
# SPDX-License-Identifier: Apache-2.0

# keep first
if(CONFIG_STM32_MEMMAP OR (CONFIG_XIP AND CONFIG_BOOTLOADER_MCUBOOT))
board_runner_args(stm32cubeprogrammer "--port=swd" "--reset-mode=hw")
board_runner_args(stm32cubeprogrammer "--extload=MX25UW25645G_NUCLEO-H7S3L8.stldr")
else()
board_runner_args(stm32cubeprogrammer "--port=swd" "--reset-mode=hw" )
endif()

board_runner_args(openocd --target-handle=_CHIPNAME.cpu0)

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10 changes: 10 additions & 0 deletions boards/st/nucleo_h7s3l8/nucleo_h7s3l8.dts
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Expand Up @@ -57,6 +57,15 @@
led2 = &red_led;
sw0 = &user_button;
watchdog0 = &iwdg;
spi-flash0 = &mx25uw25645;
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I cannot seem to find where this alias is used in-tree.

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in the https://github.com/mcu-tools/mcuboot/blob/main/boot/zephyr/flash_map_extended.c, the FLASH_DEVICE_ID is defined as SPI_FLASH_0_ID

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Ah, then it should probably be documented @nordicjm

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it is not, it is like that for specific platforms that the owners have added

};

ext_memory: memory@70000000 {
compatible = "zephyr,memory-region";
reg = <0x70000000 DT_SIZE_M(64)>;
zephyr,memory-region = "EXTMEM";
/* The ATTR_MPU_EXTMEM attribut causing a MPU FAULT */
zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_IO) )>;
};
};

Expand Down Expand Up @@ -189,6 +198,7 @@
ospi-max-frequency = <DT_FREQ_M(50)>;
spi-bus-width = <XSPI_OCTO_MODE>;
data-rate = <XSPI_DTR_TRANSFER>;
four-byte-opcodes;
status = "okay";

partitions {
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6 changes: 6 additions & 0 deletions boards/st/stm32h7s78_dk/board.cmake
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Original file line number Diff line number Diff line change
@@ -1,7 +1,13 @@
# SPDX-License-Identifier: Apache-2.0

# keep first
if(CONFIG_STM32_MEMMAP OR (CONFIG_XIP AND CONFIG_BOOTLOADER_MCUBOOT))
board_runner_args(stm32cubeprogrammer "--port=swd" "--reset-mode=hw")
board_runner_args(stm32cubeprogrammer "--extload=MX66UW1G45G_STM32H7S78-DK.stldr")
else()
board_runner_args(stm32cubeprogrammer "--port=swd" "--reset-mode=hw" )
endif()

board_runner_args(openocd --target-handle=_CHIPNAME.cpu0)

# keep first
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10 changes: 10 additions & 0 deletions boards/st/stm32h7s78_dk/stm32h7s78_dk.dts
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Expand Up @@ -69,6 +69,15 @@
die-temp0 = &die_temp;
volt-sensor0 = &vref;
volt-sensor1 = &vbat;
spi-flash0 = &mx66uw1g45;
};

ext_memory: memory@70000000 {
compatible = "zephyr,memory-region";
reg = <0x70000000 DT_SIZE_M(64)>;
zephyr,memory-region = "EXTMEM";
/* The ATTR_MPU_EXTMEM attribut causing a MPU FAULT */
zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_IO) )>;
};
};

Expand Down Expand Up @@ -244,6 +253,7 @@
ospi-max-frequency = <DT_FREQ_M(50)>;
spi-bus-width = <XSPI_OCTO_MODE>;
data-rate = <XSPI_DTR_TRANSFER>;
four-byte-opcodes;
status = "okay";

partitions {
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2 changes: 2 additions & 0 deletions samples/application_development/code_relocation_nocopy/boards/nucleo_h7s3l8.conf
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@@ -0,0 +1,2 @@
CONFIG_FLASH=y
CONFIG_STM32_MEMMAP=y
2 changes: 2 additions & 0 deletions samples/application_development/code_relocation_nocopy/boards/stm32h7s78_dk.conf
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@@ -0,0 +1,2 @@
CONFIG_FLASH=y
CONFIG_STM32_MEMMAP=y
17 changes: 17 additions & 0 deletions samples/sysbuild/with_mcuboot/boards/nucleo_h7s3l8.overlay
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@@ -0,0 +1,17 @@
/*
* Copyright (c) 2025 STMicroelectronics
*
* SPDX-License-Identifier: Apache-2.0
*/

/*
* Define the device, controller and partition to be the external memory
* for running the application in external NOR from MCUboot
*/
/ {
chosen {
zephyr,flash = &mx25uw25645;
zephyr,flash-controller = &mx25uw25645;
zephyr,code-partition = &slot0_partition;
};
};
17 changes: 17 additions & 0 deletions samples/sysbuild/with_mcuboot/boards/stm32h7s78_dk.overlay
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@@ -0,0 +1,17 @@
/*
* Copyright (c) 2025 STMicroelectronics
*
* SPDX-License-Identifier: Apache-2.0
*/

/*
* Define the device, controller and partition to be the external memory
* for running the application in external NOR from MCUboot
*/
/ {
chosen {
zephyr,flash = &mx66uw1g45;
zephyr,flash-controller = &mx66uw1g45;
zephyr,code-partition = &slot0_partition;
};
};
2 changes: 2 additions & 0 deletions samples/sysbuild/with_mcuboot/sample.yaml
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Expand Up @@ -14,6 +14,8 @@ tests:
- esp32s3_devkitm/esp32s3/procpu
- esp32c3_devkitm
- esp32c6_devkitc/esp32c6/hpcore
- nucleo_h7s3l8
- stm32h7s78_dk
integration_platforms:
- nrf52840dk/nrf52840
- esp32_devkitc/esp32/procpu
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