build/lattice/trellis.py: Add 12k device

nextpnr adds the --12k option which is the same like
the --25k but with the correct idcode for the 12k devices

Signed-off-by: Rangel Ivanov <rangelivanov88@gmail.com>

diff --git a/litex/build/lattice/trellis.py b/litex/build/lattice/trellis.py
index 154e751dd83024dc5b8913dd2f2f108ce8721ff1..a9ae49be4368aa43973579bf2e16afb28e5a2e0b 100644 (file)
--- a/litex/build/lattice/trellis.py
+++ b/litex/build/lattice/trellis.py
@@ -97,6 +97,7 @@ def nextpnr_ecp5_parse_device(device):
     return (family, size, speed_grade, package)
 
 nextpnr_ecp5_architectures = {
+    "lfe5u-12f"   : "12k",
     "lfe5u-25f"   : "25k",
     "lfe5u-45f"   : "45k",
     "lfe5u-85f"   : "85k",