trusted-firmware-m: Generate tfm_merged.bin

When CONFIG_TFM_MCUBOOT_IMAGE_NUMBER is 1 all the images will be merged.
Currently there is no tfm_merged.bin file to be used in FOTA. This add
the file generation to fulfill that need.

Signed-off-by: BUDKE Gerson Fernando <[email protected]>

Author: nandojve

modules/trusted-firmware-m/CMakeLists.txt

@@ -561,8 +561,11 @@ if (CONFIG_BUILD_WITH_TFM)
   endfunction()
 
   set(MERGED_HEX_FILE ${CMAKE_BINARY_DIR}/zephyr/tfm_merged.hex)
+  set(MERGED_BIN_FILE ${CMAKE_BINARY_DIR}/zephyr/tfm_merged.bin)
   set(S_NS_CONFIRMED_HEX_FILE ${CMAKE_BINARY_DIR}/zephyr/tfm_s_zephyr_ns_confirmed.hex)
   set(S_NS_SIGNED_CONFIRMED_HEX_FILE ${CMAKE_BINARY_DIR}/zephyr/tfm_s_zephyr_ns_confirmed_signed.hex)
+  set(S_NS_HEX_FILE ${CMAKE_BINARY_DIR}/zephyr/tfm_s_zephyr_ns.hex)
+  set(S_NS_SIGNED_HEX_FILE ${CMAKE_BINARY_DIR}/zephyr/tfm_s_zephyr_ns_signed.hex)
   set(NS_SIGNED_HEX_FILE ${CMAKE_BINARY_DIR}/zephyr/zephyr_ns_signed.hex)
   set(S_SIGNED_HEX_FILE ${CMAKE_BINARY_DIR}/zephyr/tfm_s_signed.hex)
   set(NS_SIGNED_BIN_FILE ${CMAKE_BINARY_DIR}/zephyr/zephyr_ns_signed.bin)
@@ -595,6 +598,9 @@ if (CONFIG_BUILD_WITH_TFM)
     tfm_sign(sign_cmd_s_ns_confirm_hex SUFFIX "S_NS"
       HEADER TRAILER CONFIRM MAX_SECTORS ${S_NS_MAX_SECTORS}
       INPUT_FILE ${S_NS_CONFIRMED_HEX_FILE} OUTPUT_FILE ${S_NS_SIGNED_CONFIRMED_HEX_FILE})
+    tfm_sign(sign_cmd_s_ns_hex SUFFIX "S_NS"
+      HEADER TRAILER MAX_SECTORS ${S_NS_MAX_SECTORS}
+      INPUT_FILE ${S_NS_HEX_FILE} OUTPUT_FILE ${S_NS_SIGNED_HEX_FILE})
 
     set_property(GLOBAL APPEND PROPERTY extra_post_build_commands
       COMMAND ${PYTHON_EXECUTABLE} ${ZEPHYR_BASE}/scripts/build/mergehex.py
@@ -611,10 +617,28 @@ if (CONFIG_BUILD_WITH_TFM)
         ${S_NS_SIGNED_CONFIRMED_HEX_FILE}
     )
 
+    set_property(GLOBAL APPEND PROPERTY extra_post_build_commands
+      COMMAND ${PYTHON_EXECUTABLE} ${ZEPHYR_BASE}/scripts/build/mergehex.py
+        -o ${S_NS_HEX_FILE}
+        $<TARGET_PROPERTY:tfm,TFM_S_HEX_FILE>
+        ${NS_HEX_APP_FILE}
+
+      COMMAND ${sign_cmd_s_ns_hex}
+
+      COMMAND ${PYTHON_EXECUTABLE} ${ZEPHYR_BASE}/scripts/build/mergehex.py
+        -o ${MERGED_BIN_FILE} --output-bin
+        $<$<BOOL:${CONFIG_TFM_BL1}>:$<TARGET_PROPERTY:tfm,BL2_SIGNED_HEX_FILE>>
+        $<$<NOT:$<BOOL:${CONFIG_TFM_BL1}>>:$<TARGET_PROPERTY:tfm,BL2_HEX_FILE>>
+        ${S_NS_SIGNED_HEX_FILE}
+    )
+
     set_property(GLOBAL APPEND PROPERTY extra_post_build_byproducts
       ${S_NS_CONFIRMED_HEX_FILE}
       ${S_NS_SIGNED_CONFIRMED_HEX_FILE}
+      ${S_NS_HEX_FILE}
+      ${S_NS_SIGNED_HEX_FILE}
       ${MERGED_HEX_FILE}
+      ${MERGED_BIN_FILE}
     )
 
   else()