diff --git a/config/boards/beaglev.csc b/config/boards/beaglev.eos
similarity index 100%
rename from config/boards/beaglev.csc
rename to config/boards/beaglev.eos
diff --git a/config/boards/unleashed.csc b/config/boards/unleashed.eos
similarity index 100%
rename from config/boards/unleashed.csc
rename to config/boards/unleashed.eos
diff --git a/config/boards/unmatched.csc b/config/boards/unmatched.eos
similarity index 100%
rename from config/boards/unmatched.csc
rename to config/boards/unmatched.eos
diff --git a/config/boards/visionfive.csc b/config/boards/visionfive.eos
similarity index 100%
rename from config/boards/visionfive.csc
rename to config/boards/visionfive.eos