diff --git a/litedram/phy/model.py b/litedram/phy/model.py
index 240a3f2..f1ad10f 100644
--- a/litedram/phy/model.py
+++ b/litedram/phy/model.py
@@ -11,7 +11,7 @@
 
 from migen import *
 
-from litedram.common import burst_lengths, PhySettings
+from litedram.common import *
 from litedram.phy.dfi import *
 from litedram.modules import _speedgrade_timings, _technology_timings