Index: scripts/base/base.py
===================================================================
diff -u -rdd30a8caf586169db067d42da875a31507628e8d -ra8de2deaeffb523ed9d706a40726cc92c2a0edd2
--- scripts/base/base.py	(.../base.py)	(revision dd30a8caf586169db067d42da875a31507628e8d)
+++ scripts/base/base.py	(.../base.py)	(revision a8de2deaeffb523ed9d706a40726cc92c2a0edd2)
@@ -1,7 +1,25 @@
 
 import os
 import shutil
+from enum import Enum, unique
 
+
+class SWUpdateEnum(Enum):
+
+    @classmethod
+    def has_value(cls, value):
+        return value in cls._value2member_map_
+
+@unique
+class SWUpdateTargets(SWUpdateEnum):
+    TARGET_TD = 0
+    TARGET_TD_FPGA = 1
+    TARGET_DD = 2
+    TARGET_DD_FPGA = 3
+    TARGET_RO = 4
+    TARGET_RO_FPGA = 5
+    NUM_OF_TARGETS = 6
+
 class Base:
 
     SW_UPDATE_FLASH_BUFFER_SIZE = 128