add custom fastroute.tcl for nangate45/swerv_wrapper

eder-matheus · eder-matheus · commit 1c3cc98a6bb6 · 2023-12-01T10:16:19.000-08:00
Signed-off-by: Eder Monteiro &lt;eder.matheus.monteiro@gmail.com&gt;
diff --git a/flow/designs/nangate45/swerv_wrapper/config.mk b/flow/designs/nangate45/swerv_wrapper/config.mk
@@ -33,4 +33,6 @@ export MACRO_PLACE_CHANNEL = 20 20
 export PLACE_DENSITY_LB_ADDON = 0.10
 export TNS_END_PERCENT        = 100
 
+export FASTROUTE_TCL = ./designs/$(PLATFORM)/$(DESIGN_NAME)/fastroute.tcl
+
 export SKIP_INCREMENTAL_REPAIR = 1
diff --git a/flow/designs/nangate45/swerv_wrapper/fastroute.tcl b/flow/designs/nangate45/swerv_wrapper/fastroute.tcl
@@ -0,0 +1,4 @@
+set_global_routing_layer_adjustment metal2-metal3 0.3
+set_global_routing_layer_adjustment metal4-$::env(MAX_ROUTING_LAYER) 0.15
+
+set_routing_layers -signal $::env(MIN_ROUTING_LAYER)-$::env(MAX_ROUTING_LAYER)
diff --git a/flow/platforms/nangate45/config.mk b/flow/platforms/nangate45/config.mk
@@ -86,7 +86,7 @@ export MIN_ROUTING_LAYER = metal2
 export MAX_ROUTING_LAYER = metal10
 
 # Define fastRoute tcl
-export FASTROUTE_TCL = $(PLATFORM_DIR)/fastroute.tcl
+export FASTROUTE_TCL ?= $(PLATFORM_DIR)/fastroute.tcl
 
 # KLayout technology file
 export KLAYOUT_TECH_FILE = $(PLATFORM_DIR)/FreePDK45.lyt
