Parameterize PDK specific variables in common_pdn.tcl
diff --git a/sky130/openlane/common_pdn.tcl b/sky130/openlane/common_pdn.tcl
index 3982b7f..a608757 100644
--- a/sky130/openlane/common_pdn.tcl
+++ b/sky130/openlane/common_pdn.tcl
@@ -13,10 +13,12 @@
if { [info exists ::env(FP_PDN_ENABLE_GLOBAL_CONNECTIONS)] } {
if { $::env(FP_PDN_ENABLE_GLOBAL_CONNECTIONS) == 1 } {
- add_global_connection -net $::env(VDD_NET) -inst_pattern .* -pin_pattern {VPWR} -power
- add_global_connection -net $::env(VDD_NET) -inst_pattern .* -pin_pattern {VPB} -power
- add_global_connection -net $::env(GND_NET) -inst_pattern .* -pin_pattern {VGND} -ground
- add_global_connection -net $::env(GND_NET) -inst_pattern .* -pin_pattern {VNB} -ground
+ foreach power_pin $::env(STD_CELL_POWER_PINS) {
+ add_global_connection -net $::env(VDD_NET) -inst_pattern .* -pin_pattern $power_pin -power
+ }
+ foreach ground_pin $::env(STD_CELL_GROUND_PINS) {
+ add_global_connection -net $::env(GND_NET) -inst_pattern .* -pin_pattern $ground_pin -ground
+ }
}
}
@@ -58,7 +60,7 @@
orient {R0 R180 MX MY R90 R270 MXR90 MYR90}
power_pins $::env(VDD_NET)
ground_pins $::env(GND_NET)
- blockages "li1 met1 met2 met3 met4"
+ blockages $::env(MACRO_BLOCKAGES_LAYER)
straps {
}
connect {{$::env(FP_PDN_LOWER_LAYER)_PIN_ver $::env(FP_PDN_UPPER_LAYER)}}
diff --git a/sky130/openlane/config.tcl b/sky130/openlane/config.tcl
index 310a82b..c16fee3 100755
--- a/sky130/openlane/config.tcl
+++ b/sky130/openlane/config.tcl
@@ -8,6 +8,9 @@
set ::env(VDD_PIN) "VPWR"
set ::env(GND_PIN) "VGND"
+set ::env(STD_CELL_POWER_PINS) "VPWR VPB"
+set ::env(STD_CELL_GROUND_PINS) "VGND VNB"
+
# Technology LEF
#ifdef EF_FORMAT
set ::env(TECH_LEF) "$::env(PDK_ROOT)/$::env(PDK)/libs.ref/techLEF/$::env(STD_CELL_LIBRARY)/$::env(STD_CELL_LIBRARY).tlef"
@@ -160,6 +163,9 @@
set ::env(FP_PDN_CORE_RING_VOFFSET) 6
set ::env(FP_PDN_CORE_RING_HOFFSET) 6
+# PDN Macro blockages list
+set ::env(MACRO_BLOCKAGES_LAYER) "li1 met1 met2 met3 met4"
+
# Used for parasitics estimation, IR drop analysis, etc
set ::env(WIRE_RC_LAYER) "met1"
set ::env(DATA_WIRE_RC_LAYER) "met2"
