scripts: update SKIP_DETAILED_ROUTE logic and typo

Use correct name SKIP_DETAILED_ROUTE instead of SKIP_DRT.

Since SKIP_DETAILED_ROUTE is defined at variables.yaml it will always exist
in the route stage, so the check env_var_exists_and_non_empty will always
be true. The check should be done with env_var_equals. Since the variable
is also used in the final stage to decide if OpenRCX should run we need
"final" included in the variables.yaml file.

Signed-off-by: Vitor Bandeira <[email protected]>

Author: vvbandeira

flow/scripts/detail_route.tcl

@@ -6,7 +6,7 @@ if { ![grt::have_routes] } {
         in DRC viewer to view congestion"
 }
 
-if { [env_var_exists_and_non_empty SKIP_DRT] } {
+if { [env_var_equals SKIP_DETAILED_ROUTE 1] } {
   write_db $::env(RESULTS_DIR)/5_2_route.odb
   exit
 }

flow/scripts/final_report.tcl

@@ -20,7 +20,7 @@ write_verilog $::env(RESULTS_DIR)/6_final.v
 # Run extraction and STA
 if {
   [env_var_exists_and_non_empty RCX_RULES]
-  && ![env_var_exists_and_non_empty SKIP_DRT]
+  && [env_var_equals SKIP_DETAILED_ROUTE 0]
 } {
   # RCX section
   define_process_corner -ext_model_index 0 X

flow/scripts/variables.yaml

@@ -1004,3 +1004,4 @@ SKIP_DETAILED_ROUTE:
     Skips detailed route.
   stages:
     - route
+    - final