A Linux Foundation Project
Track 2 Membership · Open Silicon Development

Build Open Source Silicon
on POWER

A collaborative program where member organizations pool engineering talent and funding to develop open source IP for sovereign compute — from processor cores to AI accelerators. Shared cost. Shared ownership. Production-grade output.

The Collaborative Engineering Model

The proven collaborative engineering model that built the open silicon ecosystem

Shared
Engineering cost across members — no single org carries the burden
Open
All IP released as open source — Apache 2.0 or compatible license
Assignee
Steering members embed engineers directly into the program team
Targeted
Group members fund specific working groups aligned to their roadmap

How It Works

Four principles that make collaborative open silicon development viable

01 · Assignee Model

Your Engineers, Shared Direction

Steering Members assign full-time engineers to the program. Those engineers work within shared working groups under OPF governance — accelerating roadmaps that benefit all members without one company bearing full cost.

02 · Working Group Structure

Scoped, Deliverable-Driven Teams

Each working group has a defined charter, technical lead, and release cadence. Group Members fund specific WGs aligned to their product roadmap. Output is open source RTL, verification suites, toolchain support, or firmware — not research papers.

03 · Open Licensing

What You Build, You Keep

All IP produced by the program is released under an open license. Every member gets equal access to the output — including proprietary optimizations and derivative works built on top of the open core.

04 · Governance Integration

Steering Members Shape the Roadmap

Steering Members hold seats on the Technical Steering Committee and participate in quarterly roadmap planning. Working group charters require Steering Member approval before launch — preventing scope creep and ensuring commercial viability.

Working Groups

Six technical programs. Each with a defined charter, technical lead, and open source output.

Core

Core Compliance & Verification

Maintain the POWER ISA compliance test suite and develop open RTL reference cores (Microwatt family). Includes formal verification, simulation frameworks, and FPGA targets for compliance validation.

Output: Microwatt enhancements, compliance test vectors, formal verification scripts
Tools

EDA & Toolchain

Develop and maintain open source EDA flows for POWER silicon tape-out — from synthesis through place-and-route to signoff. Integrate partner EDA toolchains into a unified CI pipeline.

Output: OpenROAD flow scripts, PDK integrations, open synthesis libraries
AI

AI Extensions & Accelerators

Extend POWER ISA with open AI/ML acceleration primitives. Design open inference accelerator IP blocks compatible with UCIe chiplet attachment for custom AI deployments in sovereign environments.

Output: AI ISA extension proposals, open accelerator RTL, chiplet interface specs
Security

Security & Firmware

Develop open firmware infrastructure for POWER platforms — secure boot chains, Caliptra root-of-trust integration, OpenBMC BSPs, and UEFI payloads. Required for CMMC L3+ and CNSA 2.0 compliance.

Output: Caliptra integration patches, OpenBMC BSPs, secure boot documentation
Chiplet

UCIe Chiplet Integration

Define POWER-native chiplet interface standards on the UCIe physical layer. Enable member organizations to develop interoperable chiplets — memory controllers, accelerators, I/O — that attach to open POWER compute tiles.

Output: UCIe profile specs, chiplet interface reference designs, test benches
Software

Software Compatibility Layer

Maintain and extend the POWER Compatibility Layer (PCL) — Box64 and QEMU user-mode stack — enabling existing Linux binaries to run on ppc64le without recompilation. Includes CI testing across major Linux distributions.

Output: PCL releases, binary compatibility test suite, distro integration patches

Membership Tiers

Three tiers built for different levels of investment and involvement

Group Member

Fund What You Need

Annual contribution · Per working group

  • Fund one or more specific working groups
  • Participate in funded WG technical meetings
  • Access to all funded WG outputs
  • Named contributor in release notes
  • Voting rights within funded working groups
Express Interest →
Project Member

Stay Connected

Annual contribution · Lighter engagement

  • Observer access to all working group meetings
  • Access to all program outputs (read-only pre-release)
  • Eligibility to upgrade to Group or Steering tier
  • OPF community membership benefits included
Learn More →

Why Build Open Silicon Together

🏗️

Shared cost, full benefit

Silicon R&D is expensive. The assignee model spreads engineering cost across members while every member gets access to the complete output — not just the pieces they funded.

🔓

Full design freedom

Open source RTL means any member can build, modify, or manufacture independently. No EDA tool dependency, no foundry exclusivity, no licensing gate on derivatives. The RTL is yours to own and extend.

🛡️

Sovereign compute foundation

Every IP block developed here is audit-ready: open source means governments and regulators can inspect every gate. Critical for defense, national AI programs, and regulated infrastructure.

Faster time to silicon

Working group members get early access to verification suites, PDK integrations, and reference flows. Collapse your tape-out timeline by building on proven open foundations.

🤝

Founding member recognition

The first cohort of Steering and Group Members shapes the working group charters, technical priorities, and governance structure — permanently recognized as program founders.

🌐

ESI program integration

Open Silicon Development members have a pathway into the ESI program — using open IP as the differentiation layer in a licensed POWER chiplet for sovereign AI deployments.

Ready to Help Build Open Silicon?

We're recruiting founding Steering and Group Members now. Early members shape the working group charters and technical priorities for the program.