Add new target (pinetime-graphics) that flash the bootloader logo into the spi flash memory.

src/CMakeLists.txt

@@ -372,6 +372,26 @@ list(APPEND SOURCE_FILES
   SystemTask/SystemTask.cpp
 )
 
+list(APPEND GRAPHICS_SOURCE_FILES
+    ${SDK_SOURCE_FILES}
+
+    # FreeRTOS
+    FreeRTOS/port.c
+    FreeRTOS/port_cmsis_systick.c
+    FreeRTOS/port_cmsis.c
+
+    drivers/SpiNorFlash.cpp
+    drivers/SpiMaster.cpp
+    drivers/Spi.cpp
+    Logging/NrfLogger.cpp
+
+    Components/Gfx/Gfx.cpp
+    drivers/St7789.cpp
+    Components/Brightness/BrightnessController.cpp
+
+    graphics.cpp
+)
+
 set(INCLUDE_FILES
   Logging/Logger.h
   Logging/NrfLogger.h
@@ -581,6 +601,32 @@ add_custom_command(TARGET ${EXECUTABLE_MCUBOOT_NAME}
         COMMENT "post build steps for ${EXECUTABLE_MCUBOOT_NAME}"
 )
 
+# Build binary that writes the graphic assets for the bootloader
+set(EXECUTABLE_GRAPHICS_NAME "pinetime-graphics")
+add_executable(${EXECUTABLE_GRAPHICS_NAME} ${GRAPHICS_SOURCE_FILES})
+target_compile_options(${EXECUTABLE_GRAPHICS_NAME} PUBLIC
+    $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
+    $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
+    $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
+    $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
+    $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -std=c99 -x assembler-with-cpp>
+    )
+
+set_target_properties(${EXECUTABLE_GRAPHICS_NAME} PROPERTIES
+    SUFFIX ".out"
+    LINK_FLAGS "-mthumb -mabi=aapcs -std=gnu++98 -std=c99 -L ${NRF5_SDK_PATH}/modules/nrfx/mdk -T${NRF5_LINKER_SCRIPT} -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -Wl,--gc-sections --specs=nano.specs -lc -lnosys -lm -Wl,-Map=${EXECUTABLE_GRAPHICS_NAME}.map"
+    CXX_STANDARD 11
+    C_STANDARD 99
+    )
+
+add_custom_command(TARGET ${EXECUTABLE_GRAPHICS_NAME}
+    POST_BUILD
+    COMMAND ${CMAKE_SIZE_UTIL} ${EXECUTABLE_GRAPHICS_NAME}.out
+    COMMAND ${CMAKE_OBJCOPY} -O binary ${EXECUTABLE_GRAPHICS_NAME}.out "${EXECUTABLE_GRAPHICS_NAME}.bin"
+    COMMAND ${CMAKE_OBJCOPY} -O ihex ${EXECUTABLE_GRAPHICS_NAME}.out "${EXECUTABLE_GRAPHICS_NAME}.hex"
+    COMMENT "post build steps for ${EXECUTABLE_GRAPHICS_NAME}"
+    )
+
 # FLASH
 if(USE_JLINK)
     add_custom_target(FLASH_ERASE