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designs: ihp-sg13g2: i2c-gpio-expander: Fix padring power/ground nets#3874

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designs: ihp-sg13g2: i2c-gpio-expander: Fix padring power/ground nets#3874
dnltz wants to merge 2 commits intoThe-OpenROAD-Project:masterfrom
dnltz:WIP/dnltz/ihp-sg13g2-fix-padring

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@dnltz
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@dnltz dnltz commented Feb 7, 2026

Place add_global_connection for power and ground nets in the padring before the padring got created.

Also remove add_global_connection from the ihp-sg13g2 default pdn.tcl file, because it should be defined in the FOOTPRINT_TCL file.

See #3867 for reference.

dnltz added 2 commits February 7, 2026 18:51
Remove add_global_connections for padring cells in the PDN_TCL file.
These nets should be defined in the FOOTPRINT_TCL before the padring
is created.

Signed-off-by: Daniel Schultz <dnltz@aesc-silicon.de>
…_connection

Add global connections for the padring before the padring actually
got created. So, move the add_global_connections from the pdn.tcl
file to the pad.tcl file.

Signed-off-by: Daniel Schultz <dnltz@aesc-silicon.de>
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Why move the pad related connect out of the platform? It seems like it would be relevant to any design with pads, no?

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