phy/s7ddrphy: make pads.dm optional (some boards have dm forced to ground).

2020-11-12 19:15:49 +01:00 · 2020-11-12 19:15:49 +01:00 · 1117068595
parent 431e563a39
commit 1117068595
1 changed files with 39 additions and 38 deletions
--- a/litedram/phy/s7ddrphy.py
+++ b/litedram/phy/s7ddrphy.py
@ -271,6 +271,7 @@ class S7DDRPHY(Module, AutoCSR):
            )

        # DM ---------------------------------------------------------------------------------------
+        if hasattr(pads, "dm"):
            for i in range(databits//8):
                dm_o_nodelay = Signal()
                dm_o_bitslip = BitSlip(8,