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raspberrypi/firmware

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TLDR

This repository holds the pre-compiled binary files needed to boot and run a Raspberry Pi.

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In plain English

This repository holds the pre-compiled binary files needed to boot and run a Raspberry Pi. A Raspberry Pi is a small, inexpensive single-board computer made by the Raspberry Pi Foundation and widely used for education, hobby projects, and embedded systems. When a Raspberry Pi powers on, it needs several low-level programs in place before the main operating system can start. This repository provides those programs as ready-to-use files rather than source code. The contents fall into three categories. The boot folder contains GPU firmware and bootloader files that the hardware loads first, a compiled Linux kernel image, and device tree files that describe the hardware layout to the operating system. The extra folder holds kernel symbol map files used for debugging. The modules folder contains pre-built kernel modules, which are additional pieces of driver code that the kernel can load as needed. Because these are binary files built by the Raspberry Pi Foundation, users do not compile them themselves. Typically, the official Raspberry Pi OS installer or an update utility handles downloading the correct versions automatically. Developers who need to update or replace these files on a Pi manually can pull them from this repository. The licensing is split: the GPU firmware and bootloader are covered by a Broadcom license described in a separate file, while the Linux kernel image, device tree files, and modules are released under the GPL, the license that covers the Linux kernel. The README is brief and mainly describes the folder structure and where to find the applicable license files for each component.

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