[DATA] Add full runs of almost all blocks

- Blocks that are to be hand-designed currently have a dummy layout
  (a box with pins)
- This should be sufficient to reproduce/access the current chip
  floorplan. Top-level routing is a work-in-progress.
diff --git a/lef/caravel.lef b/lef/caravel.lef
new file mode 100644
index 0000000..e4f175f
--- /dev/null
+++ b/lef/caravel.lef
@@ -0,0 +1,26 @@
+VERSION 5.7 ;
+  NOWIREEXTENSIONATPIN ON ;
+  DIVIDERCHAR "/" ;
+  BUSBITCHARS "[]" ;
+MACRO caravel
+  CLASS BLOCK ;
+  FOREIGN caravel ;
+  ORIGIN 0.000 0.000 ;
+  SIZE 3200.000 BY 5300.000 ;
+  OBS
+      LAYER li1 ;
+        RECT 0.220 0.220 3199.780 5299.705 ;
+      LAYER met1 ;
+        RECT 0.000 0.000 3200.000 5300.000 ;
+      LAYER met2 ;
+        RECT 0.000 0.000 3200.000 5300.000 ;
+      LAYER met3 ;
+        RECT 0.000 0.000 3200.000 5300.000 ;
+      LAYER met4 ;
+        RECT 0.000 0.000 3200.000 5300.000 ;
+      LAYER met5 ;
+        RECT 0.000 0.000 3200.000 5300.000 ;
+  END
+END caravel
+END LIBRARY
+