ec_fw Test & Example Directory

This directory contains reference example files for validating and testing the ec_fw EC Devicetree generator.

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Files

• ExampleEcPinout.csv: Sample hardware EC pinout CSV spreadsheet containing signal names, direction, internal pull-ups/pull-downs, voltage levels, pin type overrides, enum names, and variant pinout columns (NPCX99 (NPCX), IT82002 (ITE)).
• generated.dtsi: Reference Devicetree overlay output generated from ExampleEcPinout.csv using the Nuvoton NPCX9 (npcx99) chip definition and --pin-col="NPCX99 (NPCX)".

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Generation Commands

1. Generate Reference Devicetree (NPCX99 Variant - Nuvoton NPCX9)

Run the following command from the repository root:

go run ./ec_fw --chip=npcx99 \
               --csv=ec_fw/test/ExampleEcPinout.csv \
               --pin-col="NPCX99 (NPCX)" \
               --output=ec_fw/test/generated.dtsi

2. Generate Reference Devicetree (IT82002 Variant - ITE IT82002)

To generate for an ITE-based variant from the same spreadsheet:

go run ./ec_fw --chip=it82002 \
               --csv=ec_fw/test/ExampleEcPinout.csv \
               --pin-col="IT82002 (ITE)" \
               --output=ec_fw/test/generated_ite.dtsi