samples: code relocation in external memory of stm32 disco kit

Define the configuration to run the code_relocation application on the external memory octo flash of the stm32u585 or stm32h7b3i disco kit in XIP Signed-off-by: Francois Ramu <[email protected]>
zephyrproject-rtos · May 30, 2024 · b6eb548 · b6eb548
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diff --git a/samples/application_development/code_relocation_nocopy/README.rst b/samples/application_development/code_relocation_nocopy/README.rst
@@ -39,6 +39,18 @@ to 0x90000000.
    :goals: build flash
    :compact:
 
+STM32 b_u585i_iot02a Discovery kit instructions
+***********************************************
+
+The b_u585i_iot02a has 64MB of external flash attached via OSPI. It is mapped
+to 0x70000000.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/application_development/code_relocation_nocopy
+   :board: b_u585i_iot02a
+   :goals: build flash
+   :compact:
+
 Execution output
 ****************
 

diff --git a/samples/application_development/code_relocation_nocopy/boards/b_u585i_iot02a.conf b/samples/application_development/code_relocation_nocopy/boards/b_u585i_iot02a.conf
@@ -0,0 +1,2 @@
+CONFIG_FLASH=y
+CONFIG_STM32_MEMMAP=y
diff --git a/samples/application_development/code_relocation_nocopy/boards/stm32h7b3i_dk.conf b/samples/application_development/code_relocation_nocopy/boards/stm32h7b3i_dk.conf
@@ -0,0 +1,2 @@
+CONFIG_FLASH=y
+CONFIG_STM32_MEMMAP=y
diff --git a/samples/application_development/code_relocation_nocopy/linker_arm_nocopy.ld b/samples/application_development/code_relocation_nocopy/linker_arm_nocopy.ld
@@ -26,6 +26,13 @@
 #define EXTFLASH_SIZE	DT_PROP_OR(EXTFLASH_NODE, size_in_bytes, \
 				   DT_PROP(EXTFLASH_NODE, size) / 8)
 
+#elif defined(CONFIG_STM32_MEMMAP) && DT_NODE_EXISTS(DT_INST(0, st_stm32_ospi_nor))
+/* On stm32 OSPI, external flash is mapped in XIP region at address given by the reg property. */
+
+#define EXTFLASH_NODE	DT_INST(0, st_stm32_ospi_nor)
+#define EXTFLASH_ADDR	DT_REG_ADDR(DT_INST(0, st_stm32_ospi_nor))
+#define EXTFLASH_SIZE	DT_REG_ADDR_BY_IDX(DT_INST(0, st_stm32_ospi_nor), 1)
+
 #elif defined(CONFIG_STM32_MEMMAP) && DT_NODE_EXISTS(DT_INST(0, st_stm32_qspi_nor))
 /* On stm32 QSPI, external flash is mapped in XIP region at address given by the reg property. */
 

diff --git a/samples/application_development/code_relocation_nocopy/sample.yaml b/samples/application_development/code_relocation_nocopy/sample.yaml
@@ -7,6 +7,8 @@ tests:
       - qemu_cortex_m3
       - nrf5340dk/nrf5340/cpuapp
       - stm32f769i_disco
+      - stm32h7b3i_dk
+      - b_u585i_iot02a
     integration_platforms:
       - qemu_cortex_m3
     tags: linker