boards/nrf5340-dk: add MCUboot configurations for the app core

Added configurations:
- mcuboot_loader_cpuapp - MCUboot loader
- mcuboot_app_cpuapp - MCUboot compatible application.
  Needs to be signed manually:
    imgtool.py sign nuttx.hex nuttx_img.hex --align 8 -v 1.0.0 -H 0x200 -S 0x70000 --pad-header --pad

boards/arm/nrf53/nrf5340-dk/configs/mcuboot_app_cpuapp/defconfig

@@ -0,0 +1,53 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_NSH_DISABLE_IFCONFIG is not set
+# CONFIG_NSH_DISABLE_PS is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="nrf5340-dk"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_NRF5340_DK=y
+CONFIG_ARCH_CHIP="nrf53"
+CONFIG_ARCH_CHIP_NRF5340=y
+CONFIG_ARCH_CHIP_NRF5340_CPUAPP=y
+CONFIG_ARCH_CHIP_NRF53=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_STDARG_H=y
+CONFIG_BOARD_LOOPSPERMSEC=5500
+CONFIG_BUILTIN=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_MCUBOOT_SLOT_CONFIRM=y
+CONFIG_EXAMPLES_MCUBOOT_SWAP_TEST=y
+CONFIG_EXPERIMENTAL=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_INTELHEX_BINARY=y
+CONFIG_MM_REGIONS=2
+CONFIG_NRF53_APP_FORMAT_MCUBOOT=y
+CONFIG_NRF53_MCUBOOT_HAVE_SCRACH=y
+CONFIG_NRF53_PROGMEM_OTA_PARTITION=y
+CONFIG_NRF53_UART0=y
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_RAM_SIZE=524288
+CONFIG_RAM_START=0x20000000
+CONFIG_RAW_BINARY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=26
+CONFIG_START_MONTH=3
+CONFIG_SYMTAB_ORDEREDBYNAME=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_UART0_SERIAL_CONSOLE=y

boards/arm/nrf53/nrf5340-dk/configs/mcuboot_loader_cpuapp/defconfig

@@ -0,0 +1,43 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="nrf5340-dk"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_NRF5340_DK=y
+CONFIG_ARCH_CHIP="nrf53"
+CONFIG_ARCH_CHIP_NRF5340=y
+CONFIG_ARCH_CHIP_NRF5340_CPUAPP=y
+CONFIG_ARCH_CHIP_NRF53=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_STDARG_H=y
+CONFIG_BOARD_LOOPSPERMSEC=5500
+CONFIG_BOOT_MCUBOOT=y
+CONFIG_EXPERIMENTAL=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_INIT_ENTRYPOINT="mcuboot_loader_main"
+CONFIG_INTELHEX_BINARY=y
+CONFIG_MCUBOOT_BOOTLOADER=y
+CONFIG_MM_REGIONS=2
+CONFIG_NRF53_APP_FORMAT_MCUBOOT=y
+CONFIG_NRF53_MCUBOOT_HAVE_SCRACH=y
+CONFIG_NRF53_PROGMEM_OTA_PARTITION=y
+CONFIG_NRF53_UART0=y
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_RAM_SIZE=524288
+CONFIG_RAM_START=0x20000000
+CONFIG_RAW_BINARY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=26
+CONFIG_START_MONTH=3
+CONFIG_SYMTAB_ORDEREDBYNAME=y
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_UART0_SERIAL_CONSOLE=y

boards/arm/nrf53/nrf5340-dk/scripts/Make.defs

@@ -22,16 +22,22 @@ include $(TOPDIR)/.config
 include $(TOPDIR)/tools/Config.mk
 include $(TOPDIR)/arch/arm/src/armv8-m/Toolchain.defs
 
-ifeq ($(CONFIG_ARCH_CHIP_NRF5340_CPUAPP),y)
-LDSCRIPT = flash_app.ld
+ifeq ($(CONFIG_ARCH_BOARD_COMMON),y)
+  ifeq ($(CONFIG_ARCH_CHIP_NRF5340_CPUAPP),y)
+    ARCHSCRIPT += $(BOARD_COMMON_DIR)$(DELIM)scripts$(DELIM)flash_app.ld
+  endif
+  ifeq ($(CONFIG_ARCH_CHIP_NRF5340_CPUNET),y)
+    ARCHSCRIPT += $(BOARD_COMMON_DIR)$(DELIM)scripts$(DELIM)flash_net.ld
+  endif
+else
+  ifeq ($(CONFIG_ARCH_CHIP_NRF5340_CPUAPP),y)
+    ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)flash_app.ld
+  endif
+  ifeq ($(CONFIG_ARCH_CHIP_NRF5340_CPUNET),y)
+    ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)flash_net.ld
+  endif
 endif
 
-ifeq ($(CONFIG_ARCH_CHIP_NRF5340_CPUNET),y)
-LDSCRIPT = flash_net.ld
-endif
-
-ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
-
 ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
 
 CFLAGS := $(ARCHCFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe

boards/arm/nrf53/nrf5340-dk/src/nrf53_bringup.c

@@ -64,6 +64,10 @@
 #  include "nrf53_rptun.h"
 #endif
 
+#ifdef CONFIG_NRF53_PROGMEM
+#  include "nrf53_progmem.h"
+#endif
+
 #ifdef CONFIG_TIMER
 #  include "nrf53_timer.h"
 #endif
@@ -311,6 +315,14 @@ int nrf53_bringup(void)
     }
 #endif
 
+#ifdef CONFIG_NRF53_PROGMEM
+  ret = nrf53_progmem_init();
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: Failed to initialize MTD progmem: %d\n", ret);
+    }
+#endif /* CONFIG_MTD */
+
   UNUSED(ret);
   return OK;
 }