Update Makefile
diff --git a/Makefile b/Makefile
index d151c81..e7a9d7d 100644
--- a/Makefile
+++ b/Makefile
@@ -30,6 +30,22 @@
+ifeq ($(PDK),sky130A)
+ SKYWATER_COMMIT=f70d8ca46961ff92719d8870a18a076370b85f6c
+ export OPEN_PDKS_COMMIT?=0059588eebfc704681dc2368bd1d33d96281d10f
+ export OPENLANE_TAG?=2022.10.20
+ MPW_TAG ?= mpw-7d
+
+ifeq ($(CARAVEL_LITE),1)
+ CARAVEL_NAME := caravel-lite
+ CARAVEL_REPO := https://github.com/efabless/caravel-lite
+ CARAVEL_TAG := $(MPW_TAG)
+else
+ CARAVEL_NAME := caravel
+ CARAVEL_REPO := https://github.com/efabless/caravel
+ CARAVEL_TAG := $(MPW_TAG)
+endif
+
ifeq ($(PDK),sky130B)
SKYWATER_COMMIT=f70d8ca46961ff92719d8870a18a076370b85f6c
export OPEN_PDKS_COMMIT?=0059588eebfc704681dc2368bd1d33d96281d10f