Prepare flow for new placement buffering

Signed-off-by: Martin Povišer <[email protected]>

Author: povik

flow/scripts/global_place.tcl

@@ -5,6 +5,19 @@ load_design 3_2_place_iop.odb 2_floorplan.sdc
 
 set_dont_use $::env(DONT_USE_CELLS)
 
+remove_buffers
+
+# Do not buffer chip-level designs
+# by default, IO ports will be buffered
+# to not buffer IO ports, set environment variable
+# DONT_BUFFER_PORT = 1
+if { ![env_var_exists_and_non_empty FOOTPRINT] } {
+  if { ![env_var_equals DONT_BUFFER_PORTS 1] } {
+    puts "Perform port buffering..."
+    buffer_ports
+  }
+}
+
 fast_route
 
 set global_placement_args {}

flow/scripts/resize.tcl

@@ -10,17 +10,6 @@ set pin_count_before [sta::network_leaf_pin_count]
 
 set_dont_use $::env(DONT_USE_CELLS)
 
-# Do not buffer chip-level designs
-# by default, IO ports will be buffered
-# to not buffer IO ports, set environment variable
-# DONT_BUFFER_PORT = 1
-if { ![env_var_exists_and_non_empty FOOTPRINT] } {
-  if { ![env_var_equals DONT_BUFFER_PORTS 1] } {
-    puts "Perform port buffering..."
-    buffer_ports
-  }
-}
-
 repair_design_helper
 
 if { [env_var_exists_and_non_empty TIE_SEPARATION] } {