diff --git a/boards/arm/mec15xxevb_assy6853/CMakeLists.txt b/boards/arm/mec15xxevb_assy6853/CMakeLists.txt
index ed4e3c4..a7c44f3 100644
--- a/boards/arm/mec15xxevb_assy6853/CMakeLists.txt
+++ b/boards/arm/mec15xxevb_assy6853/CMakeLists.txt
@@ -6,3 +6,41 @@
 
 zephyr_library()
 zephyr_library_sources(pinmux.c)
+
+if(DEFINED ENV{EVERGLADES_SPI_GEN})
+  # Grab it from environment variable if defined
+  set(EVERGLADES_SPI_GEN $ENV{EVERGLADES_SPI_GEN})
+else()
+  # Else find the tool in PATH
+
+  if(CMAKE_HOST_APPLE)
+    # CMAKE_HOST_UNIX is also true for Apple,
+    # but there is no tool for Apple. So
+    # we need to skip it.
+    message(NOTICE "There is no SPI image generation tool for MacOS.")
+  elseif(CMAKE_HOST_UNIX)
+    set(EVERGLADES_SPI_GEN_FILENAME everglades_spi_gen_lin64)
+  elseif(CMAKE_HOST_WIN32)
+    set(EVERGLADES_SPI_GEN_FILENAME everglades_spi_gen.exe)
+  endif()
+
+  find_file(EVERGLADES_SPI_GEN_FINDFILE ${EVERGLADES_SPI_GEN_FILENAME})
+  if(EVERGLADES_SPI_GEN_FINDFILE STREQUAL EVERGLADES_SPI_GEN_FINDFILE-NOTFOUND)
+    message(WARNING "Microchip SPI Image Generation tool (${EVERGLADES_SPI_GEN_FILENAME}) is not available. SPI Image will not be generated.")
+  else()
+    set(EVERGLADES_SPI_GEN ${EVERGLADES_SPI_GEN_FINDFILE})
+  endif()
+
+  unset(EVERGLADES_SPI_GEN_FINDFILE)
+  unset(EVERGLADES_SPI_GEN_FILENAME)
+endif()
+
+if(DEFINED EVERGLADES_SPI_GEN)
+  set_property(GLOBAL APPEND PROPERTY extra_post_build_commands
+    COMMAND ${EVERGLADES_SPI_GEN}
+    -i ${BOARD_DIR}/support/spi_cfg.txt
+    -o ${PROJECT_BINARY_DIR}/spi_image.bin
+  )
+
+  unset(EVERGLADES_SPI_GEN)
+endif()
diff --git a/boards/arm/mec15xxevb_assy6853/doc/index.rst b/boards/arm/mec15xxevb_assy6853/doc/index.rst
index 9cfbb5d..f30db2a 100644
--- a/boards/arm/mec15xxevb_assy6853/doc/index.rst
+++ b/boards/arm/mec15xxevb_assy6853/doc/index.rst
@@ -221,14 +221,30 @@
 Programming and Debugging
 *************************
 
+Setup
+=====
+
+#. Clone the `SPI Image Gen`_ repository or download the files within
+   that directory.
+
+#. Make the image generation available for Zephyr, by making the tool
+   searchable by path, or by setting an environment variable
+   ``EVERGLADES_SPI_GEN``, for example:
+
+   .. code-block:: console
+
+      export EVERGLADES_SPI_GEN=<path to tool>/everglades_spi_gen_lin64
+
+   Note that the tools for Linux and Windows have different file names.
+
 Building
-==========
+========
 
 #. Build :ref:`hello_world` application as you would normally do.
 
-#. Once you have ``zephyr.bin``, proceed to use the `SPI Image Gen`_ microchip tool
-   in order to create the the final binary. You need the output from  this tool
-   to flash in the SHD SPI memory.
+#. The file :file:`spi_image.bin` will be created if the build system
+   can find the image generation tool. This binary image can be used
+   to flash the SPI chip.
 
 Flashing
 ========
diff --git a/boards/arm/mec15xxevb_assy6853/support/spi_cfg.txt b/boards/arm/mec15xxevb_assy6853/support/spi_cfg.txt
new file mode 100644
index 0000000..a33907b
--- /dev/null
+++ b/boards/arm/mec15xxevb_assy6853/support/spi_cfg.txt
@@ -0,0 +1,39 @@
+[SPI]
+SPISizeMegabits = 128
+Flashmap = true
+FlshmapAddr = 0
+
+[IMAGE "0"]
+ImageLocation = 0x10000
+SpiFreqMHz = 24
+SpiReadCommand = Dual
+SpiDriveStrength = 4
+SpiSlewFast = false
+SpiSignalControl = 0x00
+FwBinFile = zephyr.bin
+FwOffset = 0
+FwLoadAddress = 0xE0000
+FwEntryAddress = 0
+UseECDSA = false
+ECDSAPrivKeyFile = ecprivkey001.pem
+ECDSAPrivKeyPassword = ECPRIVKEY001
+FwEncrypt = false
+AesGenECPubKeyFile = ecpubkey002_crt.pem
+
+[IMAGE "1"]
+ImageLocation = 0x20000
+SpiFreqMHz = 12
+SpiReadCommand = Single
+SpiDriveStrength = 4
+SpiSlewFast = false
+SpiSignalControl = 0x00
+FwBinFile = zephyr.bin
+FwOffset = 0
+FwLoadAddress = 0xE0000
+FwEntryAddress = 0
+UseECDSA = false
+ECDSAPrivKeyFile = ecprivkey001.pem
+ECDSAPrivKeyPassword = ECPRIVKEY001
+ECDSAPubKeyFile = ecpubkey001_crt.pem
+FwEncrypt = false
+AesGenECPubKeyFile = ecpubkey002_crt.pem