brainix/README.md

Brain i.MX28 NixOS setup

This repo reconstructs a NixOS build environment for SHARP Brain (i.MX28 / armv5). It includes local clones of the upstream Brain projects and a Nix-based build configuration.

Contents

• sources/ clones:
  • buildbrain (u-boot-brain, brainlilo, image scripts)
  • linux-brain (kernel)
  • sheevaplug-nix (reference for armv5 NixOS)
• docs/brain-bootflow.md - boot chain + SD layout notes
• docs/nixos-build.md - build steps
• nix/ - NixOS config and build expressions
• patches/ - u-boot extlinux patch
• bootfiles/ - files copied to the SD FAT partition (BrainLILO, u-boot)

Quick start

1. Read docs/brain-bootflow.md.
2. Follow docs/nixos-build.md to build U-Boot and the SD image.