flow: designs: ihp-sg13g2: i2c-gpio-expander: Update PDN Script

Move Power Delivery Network to TopMetal1 and 2. Since IHP
changed the orientation of all metal directions, Metal5 and TM1
can't be used anymore.

Use Metal4 and 5 for the PDN inside macro blocks.

Signed-off-by: Daniel Schultz <[email protected]>

Author: dnltz

flow/designs/ihp-sg13g2/i2c-gpio-expander/I2cDeviceCtrl/pdn.tcl

@@ -25,14 +25,14 @@ global_connect
 set_voltage_domain -name {CORE} -power {VDD} -ground {VSS}
 
 # stdcell grid
-define_pdn_grid -name {grid} -voltage_domains {CORE}
+define_pdn_grid -name {grid} -voltage_domains {CORE} -pins {Metal4 Metal5}
 add_pdn_stripe -grid {grid} -layer {Metal1} -width {0.44} -pitch {7.56} -offset {0} \
-  -followpins -extend_to_core_ring
-add_pdn_ring -grid {grid} -layers {Metal3 Metal4} -widths {3.0} -spacings {2.0} \
+  -followpins
+add_pdn_ring -grid {grid} -layers {Metal4 Metal5} -widths {3.0} -spacings {2.0} \
   -core_offsets {4.5} -connect_to_pads
-add_pdn_stripe -grid {grid} -layer {Metal3} -width {1.840} -pitch {75.6} -offset {37.8} \
+add_pdn_stripe -grid {grid} -layer {Metal4} -width {1.840} -pitch {75.6} -offset {13.6} \
   -extend_to_core_ring
-add_pdn_stripe -grid {grid} -layer {Metal4} -width {1.840} -pitch {75.6} -offset {37.8} \
+add_pdn_stripe -grid {grid} -layer {Metal5} -width {1.840} -pitch {75.6} -offset {13.6} \
   -extend_to_core_ring
-add_pdn_connect -grid {grid} -layers {Metal1 Metal3}
-add_pdn_connect -grid {grid} -layers {Metal3 Metal4}
+add_pdn_connect -grid {grid} -layers {Metal1 Metal4}
+add_pdn_connect -grid {grid} -layers {Metal4 Metal5}

flow/designs/ihp-sg13g2/i2c-gpio-expander/pdn.tcl

@@ -25,22 +25,20 @@ global_connect
 set_voltage_domain -name {CORE} -power {VDD} -ground {VSS}
 
 # stdcell grid
-define_pdn_grid -name {grid} -voltage_domains {CORE}
+define_pdn_grid -name {grid} -voltage_domains {CORE} -pins {TopMetal1 TopMetal2}
 add_pdn_stripe -grid {grid} -layer {Metal1} -width {0.44} -pitch {7.56} -offset {0} \
   -followpins -extend_to_core_ring
-add_pdn_ring -grid {grid} -layers {Metal5 TopMetal1} -widths {8.0} -spacings {5.0} \
+add_pdn_ring -grid {grid} -layers {TopMetal1 TopMetal2} -widths {8.0} -spacings {5.0} \
   -core_offsets {4.5} -connect_to_pads
-add_pdn_stripe -grid {grid} -layer {Metal5} -width {2.200} -pitch {75.6} -offset {37.8} \
+add_pdn_stripe -grid {grid} -layer {TopMetal1} -width {2.200} -pitch {75.6} -offset {13.6} \
   -extend_to_core_ring
-add_pdn_stripe -grid {grid} -layer {TopMetal1} -width {2.200} -pitch {75.6} -offset {37.8} \
+add_pdn_stripe -grid {grid} -layer {TopMetal2} -width {2.200} -pitch {75.6} -offset {13.6} \
   -extend_to_core_ring
-add_pdn_connect -grid {grid} -layers {Metal1 Metal5}
-add_pdn_connect -grid {grid} -layers {Metal5 TopMetal1}
-add_pdn_connect -grid {grid} -layers {Metal5 TopMetal2}
+add_pdn_connect -grid {grid} -layers {Metal1 TopMetal1}
 add_pdn_connect -grid {grid} -layers {TopMetal1 TopMetal2}
 
 define_pdn_grid \
   -name {CORE_macro_grid_1} -voltage_domains {CORE} \
   -macro -cells {I2cDeviceCtrl} -grid_over_boundary
-add_pdn_connect -grid {CORE_macro_grid_1} -layers {Metal3 TopMetal1}
 add_pdn_connect -grid {CORE_macro_grid_1} -layers {Metal4 TopMetal1}
+add_pdn_connect -grid {CORE_macro_grid_1} -layers {Metal5 TopMetal1}