OTA - redirection support + bootloader

components/bootloader/CMakeLists.txt

@@ -0,0 +1,21 @@
+idf_component_register(PRIV_REQUIRES partition_table)
+
+# Do not generate flash file when building bootloader or is in early expansion of the build
+if(BOOTLOADER_BUILD)
+    return()
+endif()
+
+# When secure boot is enabled, do not flash bootloader along with invocation of `idf.py flash`
+if(NOT CONFIG_SECURE_BOOT_ENABLED)
+    set(flash_bootloader FLASH_IN_PROJECT)
+endif()
+
+# Set values used in flash_bootloader_args.in and generate flash file
+# for bootloader
+esptool_py_flash_project_args(bootloader 0x1000
+                            ${BOOTLOADER_BUILD_DIR}/bootloader.bin
+                            ${flash_bootloader}
+                            FLASH_FILE_TEMPLATE flash_bootloader_args.in)
+
+esptool_py_custom_target(bootloader-flash bootloader "bootloader")
+add_dependencies(bootloader partition_table)