Use DFU with KMU with zephyr partitioning

Author: lubiel-nordic

l9/l9_e2/sysbuild/mcuboot.conf

@@ -2,8 +2,9 @@
 CONFIG_LOG=y
 CONFIG_LOG_MODE_IMMEDIATE=y
 
-# Turn on a LED so we can see when Serial Recovery mode is active
-CONFIG_MCUBOOT_INDICATION_LED=y
-
-# Increase boot sectors for nRF54LM20
+CONFIG_BOOT_MAX_IMG_SECTORS_AUTO=n
 CONFIG_BOOT_MAX_IMG_SECTORS=512
+
+CONFIG_MCUBOOT_SERIAL=n
+CONFIG_BOOT_SERIAL_UART=n       
+CONFIG_UART_CONSOLE=y

l9/l9_e2_sol/do_not_use_this_key.pem

@@ -1,5 +1,3 @@
 -----BEGIN PRIVATE KEY-----
-MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQg50+7fqpnX5fwGTGs
-H2G363Zdh0pd5O7YEoqaCCFdjKOhRANCAASX4Uv+jjE8WWJvWhQpKtU3Enn4g6K2
-RtMti5E7YB1uAGf8kweUJzP959OlRuYtpDGIwFqEsEoy/RZfg1xJVGxd
+MC4CAQAwBQYDK2VwBCIEINrfZSbdwFwyxJMeTG4Aigh0sWajOCfHM8lGukFiY/C2
 -----END PRIVATE KEY-----

l9/l9_e2_sol/sysbuild.conf

@@ -4,7 +4,8 @@ SB_CONFIG_BOOTLOADER_MCUBOOT=y
 SB_CONFIG_PARTITION_MANAGER=n
 
 # STEP 2.1 - Add private key for MCUboot
-SB_CONFIG_BOOT_SIGNATURE_KEY_FILE="\${APP_DIR}/ed_ci_key.pem"
+#SB_CONFIG_BOOT_SIGNATURE_KEY_FILE="\${APP_DIR}/do_not_use_this_key.pem"
+SB_CONFIG_BOOT_SIGNATURE_KEY_FILE="\${APP_DIR}/private_key.pem"
 
 # STEP 2.2. - Configure key type
 SB_CONFIG_MCUBOOT_SIGNATURE_USING_KMU=y
@@ -14,4 +15,4 @@ SB_CONFIG_BOOT_SIGNATURE_TYPE_ED25519=y
 #SB_CONFIG_BOOT_SIGNATURE_TYPE_ECDSA_P256=y
 
 # STEP 2.3 - Provision KMU automatically through the build system/nrfutil (nRF54L only)
-#SB_CONFIG_MCUBOOT_GENERATE_DEFAULT_KMU_KEYFILE=y
+SB_CONFIG_MCUBOOT_GENERATE_DEFAULT_KMU_KEYFILE=y

l9/l9_e2_sol/sysbuild/mcuboot.conf

@@ -5,9 +5,7 @@ CONFIG_LOG_MODE_IMMEDIATE=y
 CONFIG_BOOT_MAX_IMG_SECTORS_AUTO=n
 CONFIG_BOOT_MAX_IMG_SECTORS=512
 
-CONFIG_MCUBOOT_SERIAL=y
-CONFIG_BOOT_SERIAL_UART=y
-CONFIG_UART_CONSOLE=n
+CONFIG_MCUBOOT_SERIAL=n
+CONFIG_BOOT_SERIAL_UART=n       
+CONFIG_UART_CONSOLE=y
 
-# Turn on a LED so we can see when Serial Recovery mode is active
-CONFIG_MCUBOOT_INDICATION_LED=y

l9/l9_e2_sol/sysbuild/mcuboot.overlay

@@ -4,3 +4,9 @@
 		mcuboot-led0 = &led1;
   };
 };
+
+/ {
+  chosen {
+    zephyr,code-partition = &boot_partition;
+  };
+};