The OpenPOWER firmware build process uses Buildroot to create a toolchain and build the various components of the PNOR firmware, including Hostboot, Skiboot, OCC, Petitboot etc.

https://open-power.github.io/op-build/

See the doc/ directory for documentation source. Contributions are VERY welcome!

Issues, Milestones, pull requests and code hosting is on GitHub: https://github.com/open-power/op-build

See CONTRIBUTING.md for howto contribute code.

• Mailing list: [email protected]
• Info/Subscribe: https://lists.ozlabs.org/listinfo/openpower-firmware
• Archives: https://lists.ozlabs.org/pipermail/openpower-firmware/

To build an image for a Palmetto system:

git clone --recursive [email protected]:open-power/op-build.git
cd op-build
./op-build palmetto_defconfig && ./op-build

There are also default configurations for other platforms in openpower/configs/. Current POWER8 platforms include Habanero, Firestone, and Garrison. Current POWER9 platforms include Witherspoon, Boston (p9dsu), Romulus, and Zaius.

Buildroot/op-build supports both native and cross-compilation - it will automatically download and build an appropriate toolchain as part of the build process, so you don't need to worry about setting up a cross-compiler. Cross-compiling from a x86-64 host is officially supported.

The machine your building on will need Python 2.7, GCC 6.2 (or later), and a handful of other packages (see below).

1. Install Ubuntu (>= 18.04) or Debian (>= 9) 64-bit.

2. Enable Universe (Ubuntu only):

    sudo apt-get install software-properties-common
    sudo add-apt-repository universe
   

3. Install the packages necessary for the build:

    sudo apt-get install cscope ctags libz-dev libexpat-dev \
      python language-pack-en texinfo \
      build-essential g++ git bison flex unzip \
      libssl-dev libxml-simple-perl libxml-sax-perl libxml-parser-perl libxml2-dev libxml2-utils xsltproc \
      wget bc rsync
   

1. Install Fedora (>= 25) 64-bit.

2. Install the packages necessary for the build:

    sudo dnf install gcc-c++ flex bison git ctags cscope expat-devel patch \
      zlib-devel zlib-static texinfo perl-bignum "perl(XML::Simple)" \
      "perl(YAML)" "perl(XML::SAX)" "perl(Fatal)" "perl(Thread::Queue)" \
      "perl(Env)" "perl(XML::LibXML)" "perl(Digest::SHA1)" libxml2-devel \
      which wget unzip tar cpio python bzip2 bc findutils ncurses-devel \
      openssl-devel