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]>

Author: FRASTM

samples/application_development/code_relocation_nocopy/boards/b_u585i_iot02a.conf

@@ -0,0 +1,2 @@
+CONFIG_FLASH=y
+CONFIG_STM32_MEMMAP=y

samples/application_development/code_relocation_nocopy/boards/stm32h7b3i_dk.conf

@@ -0,0 +1,2 @@
+CONFIG_FLASH=y
+CONFIG_STM32_MEMMAP=y

samples/application_development/code_relocation_nocopy/linker_arm_nocopy.ld

@@ -26,6 +26,20 @@
 #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. */
+
+#define EXTFLASH_NODE	DT_INST(0, st_stm32_qspi_nor)
+#define EXTFLASH_ADDR	DT_REG_ADDR(DT_INST(0, st_stm32_qspi_nor))
+#define EXTFLASH_SIZE	DT_REG_ADDR_BY_IDX(DT_INST(0, st_stm32_qspi_nor), 1)
+
 #else
 
 /*