Add src/main/openlane/nax template

src/main/openlane/nax/config.tcl

@@ -0,0 +1,34 @@
+
+set ::env(DESIGN_NAME) {nax}
+set ::env(VERILOG_FILES) [glob $::env(DESIGN_DIR)/src/*.v]
+set ::env(CLOCK_PORT) "clk"
+set ::env(CLOCK_PERIOD) "50.0"
+set ::env(DESIGN_IS_CORE) {1}
+
+# If you use SRAM macro, uncomment this
+#set ::env(VERILOG_FILES_BLACKBOX) [glob $::env(DESIGN_DIR)/sram/*.v]
+#set ::env(EXTRA_LEFS) [glob $::env(DESIGN_DIR)/sram/*.lef]
+#set ::env(EXTRA_GDS_FILES) [glob $::env(DESIGN_DIR)/sram/*.gds]
+#set ::env(EXTRA_LIBS) [glob $::env(DESIGN_DIR)/sram/*_TT_1p8V_25C.lib]
+#set ::env(MACRO_PLACEMENT_CFG) $::env(DESIGN_DIR)/macro_placement.cfg
+
+set ::env(FP_SIZING) "absolute"
+set ::env(DIE_AREA) "0 0 3600 3600"
+
+set ::env(FP_CORE_UTIL) "20"
+set ::env(PL_TARGET_DENSITY) "0.25"
+
+# Attempts to workaround https://github.com/The-OpenROAD-Project/OpenLane/issues/2030
+set ::env(FP_PDN_HORIZONTAL_HALO) "40"
+set ::env(FP_PDN_VERTICAL_HALO) "40"
+set ::env(PL_MACRO_HALO) "2 2"
+
+# yosys Error: The network is combinational workaround
+set ::env(SYNTH_STRATEGY) {AREA 3}
+
+set tech_specific_config "$::env(DESIGN_DIR)/$::env(PDK)_$::env(STD_CELL_LIBRARY)_config.tcl"
+if { [file exists $tech_specific_config] == 1 } {
+ source $tech_specific_config
+}
+
+

src/main/openlane/nax/macro_placement.cfg

@@ -0,0 +1,4 @@
+FetchCachePlugin_logic_banks_0_mem 200 200 R0
+FetchCachePlugin_logic_banks_1_mem 1200 200 R0
+BtbPlugin_logic_mem 200 800 R0
+GSharePlugin_logic_mem_counter 1800 800 R0