coreboot (formerly known as LinuxBIOS) is a free software project, endorsed by the Free Software Foundation, aimed at replacing the proprietary BIOS firmware found in most computers with a lightweight system designed to perform only the minimum of tasks necessary to load and run a modern 32-bit or 64-bit operating system.
Read more about Coreboot: History, Supported Platforms, Design, Developing and Debugging Coreboot, Payloads, Initializing DRAM