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Patrik Berglund

PROFILE

Patrik Berglund

Worked on enabling and enhancing networking, graphics, and hardware configuration for ARM Morello platforms across the tianocore/edk2-platforms and NVIDIA/edk2-platforms repositories. Delivered cross-repository network stack integration, added Realtek NIC and HDMI support, and implemented UEFI I2C drivers using C and UEFI development skills. Developed modules for Graphics Output Protocol and framebuffer management, improving display compatibility for graphical operating systems. Introduced Device Tree parsing and hardware configuration propagation from EL3 firmware, streamlining platform initialization. Addressed DXE dependency issues and added boot branding features, demonstrating a focus on low-level programming, embedded systems, and robust platform development throughout the engineering process.

Overall Statistics

Feature vs Bugs

93%Features

Repository Contributions

18Total
Bugs
1
Commits
18
Features
13
Lines of code
6,896
Activity Months5

Work History

February 2023

2 Commits • 1 Features

Feb 1, 2023

February 2023 monthly work summary focusing on ARM Morello platform improvements in tianocore/edk2-platforms. Delivered boot branding capability and resolved critical DXE dependency issues to enhance platform stability and user experience.

September 2022

5 Commits • 4 Features

Sep 1, 2022

September 2022 monthly summary focusing on key accomplishments in Morello hardware configuration and Device Tree integration across tianocore/edk2-platforms and NVIDIA/edk2-platforms. Delivered new PEI/DXE interfaces to parse and propagate hardware configuration data from EL3 firmware to downstream stages, introduced a dedicated hardware config file for Morello SoC, and exposed EL3-provided Device Tree (HW_CONFIG) when available. These changes enable reliable hardware configuration during PEI/DXE, improve platform initialization, and create a consistent data path for hardware configuration data, reducing manual configuration and enabling faster platform bring-up.

June 2022

4 Commits • 3 Features

Jun 1, 2022

June 2022 monthly summary focusing on key GOP enablement and framebuffer configuration work across NVIDIA/edk2-platforms and Tianocore/edk2-platforms for ARM Morello platforms. Delivered runtime GOP enablement on Morello FVP, framebuffer memory carve-out within the lower 40 bits of the 32-bit DDR mapping, and GOP integration via LcdPlatformLibMorello and LcdGraphicsOutputDxe, with platform-specific GOP config for Morello SoC. These changes improve graphics availability for graphical OSs without input drivers and enhance display management and memory mapping across platforms.

May 2022

4 Commits • 3 Features

May 1, 2022

Month: 2022-05. Key platform work delivered across NVIDIA/edk2-platforms and tianocore/edk2-platforms, focusing on enabling graphics, I2C, and HDMI capabilities on ARM Morello platforms. No explicit bug fixes documented for this period; the changes center on driver and graphics path enablement that unlock upstream validation and broader hardware support.

February 2022

3 Commits • 2 Features

Feb 1, 2022

February 2022: Delivered cross-repo network stack enablement for ARM Morello platforms across tianocore/edk2-platforms and NVIDIA/edk2-platforms, establishing critical networking capabilities for Morello SoCs and NIC support. Key milestones include enabling the network stack and Realtek 8111GS NIC support on Morello, across two platforms, with signed commits. This work advances platform readiness, enabling testing and pilot deployments for ARM Morello networking scenarios. No major defects opened in this cycle; changes focused on module inclusion, configuration, and cross-repo compatibility for network enablement.

Activity

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Quality Metrics

Correctness96.6%
Maintainability83.4%
Architecture95.6%
Performance83.4%
AI Usage21.2%

Skills & Technologies

Programming Languages

CDscFDFFdf

Technical Skills

C ProgrammingC programmingDriver DevelopmentEmbedded SystemsFirmware DevelopmentI2C protocolPlatform DevelopmentUEFIUEFI DevelopmentUEFI developmentdriver developmentembedded systemsfirmware developmenthardware configurationhardware interfacing

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

tianocore/edk2-platforms

Feb 2022 Feb 2023
5 Months active

Languages Used

DscFDFFdfC

Technical Skills

Embedded SystemsFirmware DevelopmentPlatform Developmentembedded systemsfirmware developmentnetworking

NVIDIA/edk2-platforms

Feb 2022 Sep 2022
4 Months active

Languages Used

C

Technical Skills

embedded systemsnetwork programmingplatform developmentdriver developmenthardware interfacinglow-level programming