diff --git a/tools/targets/__init__.py b/tools/targets/__init__.py
index 086e01faab7..4db6d21fdc9 100644
--- a/tools/targets/__init__.py
+++ b/tools/targets/__init__.py
@@ -470,6 +470,7 @@ def lpc_patch(t_self, resources, elf, binf):
         t_self.notify.debug("LPC Patch: %s" % os.path.split(binf)[1])
         patch(binf)
 
+
 class MTSCode(object):
     """Generic MTS code"""
     @staticmethod
@@ -499,11 +500,145 @@ def _combine_bins_helper(target_name, binf):
         os.remove(binf)
         os.rename(target, binf)
 
+    @staticmethod
+    def combine_bins_mts_dot(t_self, resources, elf, binf):
+        """A hook for the MTS MDOT"""
+        MTSCode._combine_bins_helper("MTS_MDOT_F411RE", binf)
+
     @staticmethod
     def combine_bins_mts_dragonfly(t_self, resources, elf, binf):
         """A hoof for the MTS Dragonfly"""
         MTSCode._combine_bins_helper("MTS_DRAGONFLY_F411RE", binf)
 
+    @staticmethod
+    def combine_bins_mtb_mts_dragonfly(t_self, resources, elf, binf):
+        """A hook for the MTB MTS Dragonfly"""
+        MTSCode._combine_bins_helper("MTB_MTS_DRAGONFLY", binf)
+
+
+class LPC4088Code(object):
+    """Code specific to the LPC4088"""
+    @staticmethod
+    def binary_hook(t_self, resources, elf, binf):
+        """Hook to be run after an elf file is built"""
+        if not os.path.isdir(binf):
+            # Regular binary file, nothing to do
+            LPCTargetCode.lpc_patch(t_self, resources, elf, binf)
+            return
+        outbin = open(binf + ".temp", "wb")
+        partf = open(os.path.join(binf, "ER_IROM1"), "rb")
+        # Pad the fist part (internal flash) with 0xFF to 512k
+        data = partf.read()
+        outbin.write(data)
+        outbin.write(b'\xFF' * (512*1024 - len(data)))
+        partf.close()
+        # Read and append the second part (external flash) in chunks of fixed
+        # size
+        chunksize = 128 * 1024
+        partf = open(os.path.join(binf, "ER_IROM2"), "rb")
+        while True:
+            data = partf.read(chunksize)
+            outbin.write(data)
+            if len(data) < chunksize:
+                break
+        partf.close()
+        outbin.close()
+        # Remove the directory with the binary parts and rename the temporary
+        # file to 'binf'
+        shutil.rmtree(binf, True)
+        os.rename(binf + '.temp', binf)
+        t_self.notify.debug(
+            "Generated custom binary file (internal flash + SPIFI)"
+        )
+        LPCTargetCode.lpc_patch(t_self, resources, elf, binf)
+
+
+class TEENSY3_1Code(object):
+    """Hooks for the TEENSY3.1"""
+    @staticmethod
+    def binary_hook(t_self, resources, elf, binf):
+        """Hook that is run after elf is generated"""
+        # This function is referenced by old versions of targets.json and
+        # should be kept for backwards compatibility.
+        pass
+
+
+class MCU_NRF51Code(object):
+    """NRF51 Hooks"""
+    @staticmethod
+    def binary_hook(t_self, resources, _, binf):
+        """Hook that merges the soft device with the bin file"""
+        # Scan to find the actual paths of soft device
+        sdf = None
+        sd_with_offsets = t_self.target.EXPECTED_SOFTDEVICES_WITH_OFFSETS
+        for softdevice_and_offset_entry in sd_with_offsets:
+            for hexf in resources.get_file_paths(FileType.HEX):
+                if hexf.find(softdevice_and_offset_entry['name']) != -1:
+                    t_self.notify.debug("SoftDevice file found %s."
+                                        % softdevice_and_offset_entry['name'])
+                    sdf = hexf
+
+                if sdf is not None:
+                    break
+            if sdf is not None:
+                break
+
+        if sdf is None:
+            t_self.notify.debug("Hex file not found. Aborting.")
+            return
+
+        # Look for bootloader file that matches this soft device or bootloader
+        # override image
+        blf = None
+        if t_self.target.MERGE_BOOTLOADER is True:
+            for hexf in resources.get_file_paths(FileType.HEX):
+                if hexf.find(t_self.target.OVERRIDE_BOOTLOADER_FILENAME) != -1:
+                    t_self.notify.debug(
+                        "Bootloader file found %s."
+                        % t_self.target.OVERRIDE_BOOTLOADER_FILENAME
+                    )
+                    blf = hexf
+                    break
+                elif hexf.find(softdevice_and_offset_entry['boot']) != -1:
+                    t_self.notify.debug("Bootloader file found %s."
+                                        % softdevice_and_offset_entry['boot'])
+                    blf = hexf
+                    break
+
+        # Merge user code with softdevice
+        from intelhex import IntelHex
+        binh = IntelHex()
+        _, ext = os.path.splitext(binf)
+        if ext == ".hex":
+            binh.loadhex(binf)
+        elif ext == ".bin":
+            binh.loadbin(binf, softdevice_and_offset_entry['offset'])
+
+        if t_self.target.MERGE_SOFT_DEVICE is True:
+            t_self.notify.debug("Merge SoftDevice file %s"
+                                % softdevice_and_offset_entry['name'])
+            sdh = IntelHex(sdf)
+            sdh.start_addr = None
+            binh.merge(sdh)
+
+        if t_self.target.MERGE_BOOTLOADER is True and blf is not None:
+            t_self.notify.debug("Merge BootLoader file %s" % blf)
+            blh = IntelHex(blf)
+            blh.start_addr = None
+            binh.merge(blh)
+
+        with open(binf.replace(".bin", ".hex"), "w") as fileout:
+            binh.write_hex_file(fileout, write_start_addr=False)
+
+
+class NCS36510TargetCode(object):
+    @staticmethod
+    def ncs36510_addfib(t_self, resources, elf, binf):
+        from tools.targets.NCS import add_fib_at_start
+        print("binf ", binf)
+        add_fib_at_start(binf[:-4])
+
+
 class RTL8195ACode(object):
     """RTL8195A Hooks"""
     @staticmethod