defunct: playing around with bootloaders

software/apps/firmware_node/boards/flash_partitions_128kb.dtsi

@@ -0,0 +1,29 @@
+/*
+ * Flash partition layout for STM32G431 (128KB total flash)
+ * MCUboot + single application slot configuration
+ */
+
+&flash0 {
+        partitions {
+                compatible = "fixed-partitions";
+                #address-cells = <1>;
+                #size-cells = <1>;
+
+                boot_partition: partition@0 {
+                        label = "mcuboot";
+                        reg = <0x00000000 0x0000A000>; /* 40 KB for MCUboot */
+                        read-only;
+                };
+
+                slot0_partition: partition@A000 {
+                        label = "image-0";
+                        reg = <0x0000A000 0x00016000>; /* 88 KB for application */
+                };
+        };
+};
+
+/ {
+	chosen {
+		zephyr,code-partition = &slot0_partition;
+	};
+};

software/apps/firmware_node/boards/weact_stm32g431_core.overlay

@@ -4,27 +4,4 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-&flash0 {
-        partitions {
-                compatible = "fixed-partitions";
-                #address-cells = <1>;
-                #size-cells = <1>;
-
-                boot_partition: partition@0 {
-                        label = "mcuboot";
-                        reg = <0x00000000 0x00008000>; /* 32 KB */
-                        read-only;
-                };
-
-                slot0_partition: partition@8000 {
-                        label = "image-0";
-                        reg = <0x00008000 0x00018000>; /* 96 KB */
-                };
-        };
-};
-
-/ {
-	chosen {
-		zephyr,code-partition = &slot0_partition;
-	};
-};
+#include "flash_partitions_128kb.dtsi"