feat(uconsole): add cm5 cross-compiled nixosConfiguration

- New host: uconsole-cm5 (aarch64-linux, cross-built from x86_64)
- SSH authorizedKeys: gortium.main + ai-worker.main
- NetworkManager enabled (WiFi password via agenix later)
- Display: vc4/panel_cwu50/rp1_dsi with empty initrd
- Config.txt [pi5] section (not [cm5])
- Backlight fix service
- nixos-raspberrypi → gortium/cm5-cross-v1 fork (PR #197)
- nixpkgs-uconsole pinned to nixos-25.11 (kernel patch compat)

V3 branch saved as archive/uconsole-cm5-v3 (Reticulum/SDR/HAM config).
This commit is contained in:
2026-06-12 16:02:13 -04:00
parent 36359de6aa
commit 1f99ca0d37
3 changed files with 198 additions and 1 deletions

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@@ -12,10 +12,23 @@
url = "git+https://git.lix.systems/lix-project/lix?ref=main";
inputs.nixpkgs.follows = "nixpkgs";
};
# uConsole CM5 — pinned nixpkgs for kernel patch compatibility
nixpkgs-uconsole.url = "github:NixOS/nixpkgs/nixos-25.11";
nixos-uconsole = {
url = "github:nixos-uconsole/nixos-uconsole/v1.1.0";
inputs.nixpkgs.follows = "nixpkgs-uconsole";
};
nixos-raspberrypi = {
url = "github:gortium/nixos-raspberrypi/cm5-cross-v1";
inputs.nixpkgs.follows = "nixpkgs-uconsole";
};
self.submodules = true;
};
outputs = { self, nixpkgs, agenix, lix, ... }@inputs:
outputs = { self, nixpkgs, agenix, lix
, nixpkgs-uconsole, nixos-uconsole, nixos-raspberrypi
, ... }@inputs:
let
system = "x86_64-linux";
keys = import ./lib/keys.nix;
@@ -80,6 +93,48 @@
./hosts/cyt-pi/hardware-configuration.nix
];
};
# ============================================================
# uConsole CM5 — cross-compilé (build sur x86_64, run sur ARM)
# Approche incrémentale pour fixer l'écran
# ============================================================
uconsole-cm5 = nixpkgs-uconsole.lib.nixosSystem {
system = "aarch64-linux";
specialArgs = {
inherit self keys paths inputs;
nixos-raspberrypi = nixos-raspberrypi;
isCM4 = false;
};
modules = [
{
# Cross-compile : build sur x86_64, run sur aarch64
nixpkgs.buildPlatform = "x86_64-linux";
nixpkgs.hostPlatform = "aarch64-linux";
nixpkgs.config.allowUnfree = true;
boot.loader.raspberry-pi.bootloader = "kernel";
}
# nixos-raspberrypi — crée pkgs.rpi avec kernel/firmware cross-compilés
nixos-raspberrypi.nixosModules.nixpkgs-rpi
{
nixpkgs.overlays = [
nixos-raspberrypi.overlays.bootloader
nixos-raspberrypi.overlays.vendor-kernel
nixos-raspberrypi.overlays.vendor-firmware
nixos-raspberrypi.overlays.kernel-and-firmware
nixos-raspberrypi.overlays.vendor-pkgs
nixos-raspberrypi.overlays.pkgs
];
}
# nixos-uconsole CM5 modules
nixos-uconsole.nixosModules.kernel
nixos-uconsole.nixosModules.configtxt
(nixos-uconsole.nixosModules.cm { lib = nixpkgs-uconsole.lib; isCM4 = false; })
nixos-uconsole.nixosModules.base
# Notre config
./hosts/uconsole-cm5/configuration.nix
./hosts/uconsole-cm5/hardware-configuration.nix
];
};
};
devShells.${system}.default = devShell;
};

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@@ -0,0 +1,112 @@
{ config, lib, pkgs, keys, ... }:
{
# Basic Host Info
networking.hostName = "uConsole";
time.timeZone = "America/Montreal";
i18n.defaultLocale = "en_CA.UTF-8";
system.stateVersion = "25.11";
# ============================================================
# SSH Access — ta clé + clé de déploiement
# ============================================================
services.openssh = {
enable = true;
settings.PermitRootLogin = "prohibit-password";
settings.PasswordAuthentication = false;
};
users.users.root = {
openssh.authorizedKeys.keys = [
keys.users.gortium.main
keys.users.ai-worker.main
];
};
# ============================================================
# Networking — WiFi via NetworkManager
# ============================================================
networking.networkmanager.enable = true;
# WiFi connection — Thierry ajoutera le password dans un secret agenix
# networking.networkmanager.connections = { ... };
# ============================================================
# Kernel parameters from nixos-uconsole CM5 module
# ============================================================
boot.kernelParams = [
"8250.nr_uarts=1"
"console=tty1"
];
# ============================================================
# Console font for 5" 720x1280 display
# ============================================================
console = {
earlySetup = true;
font = "ter-v24n";
packages = with pkgs; [ terminus_font ];
};
# ============================================================
# Display — vc4/panel_cwu50 loaded AFTER RP1 PCIe init
# Rien dans initrd — tout RP1 est derrière PCIe
# ============================================================
hardware.graphics.enable = true;
boot.kernelModules = [
"panel_cwu50" # uConsole DSI panel driver
"vc4" # VideoCore 4 KMS GPU driver
"rp1_dsi" # RP1 DSI bridge driver
];
boot.initrd.kernelModules = lib.mkForce [ ];
# ============================================================
# CM5 Config.txt — [pi5] section (pas [cm5])
# ============================================================
hardware.raspberry-pi.extra-config = ''
[all]
gpio=10=ip,np
gpio=11=op,dh
[pi5]
dtparam=pciex1=off
dtoverlay=clockworkpi-uconsole-cm5
dtoverlay=dwc2,dr_mode=host
dtoverlay=vc4-kms-v3d-pi5,cma-384
dtparam=nohdmi1=off
'';
# ============================================================
# CM5 Display Backlight Fix
# ============================================================
systemd.services.cm5-backlight-fix = {
description = "CM5 Display Backlight Fix";
after = [ "multi-user.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Type = "oneshot";
ExecStart = let
fixScript = pkgs.writeShellScript "backlight-fix" ''
for bl in /sys/class/backlight/*/brightness; do
if [ -f "$bl" ]; then
max=$(cat "$(dirname "$bl")/max_brightness" 2>/dev/null || echo 100)
echo "$max" > "$bl" 2>/dev/null || true
fi
done
'';
in "${fixScript}";
};
};
# ============================================================
# Minimal packages
# ============================================================
environment.systemPackages = with pkgs; [
git
vim
htop
libgpiod # GPIO control
];
}

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@@ -0,0 +1,30 @@
{ config, lib, pkgs, modulesPath, ... }:
{
imports = [
(modulesPath + "/installer/scan/not-detected.nix")
];
boot.initrd.availableKernelModules = [ "xhci_pci" "usbhid" "usb_storage" "sdhci_pci" "nvme" ];
boot.initrd.kernelModules = [ ];
boot.extraModulePackages = [ ];
# SD card partitions (nixos-uconsole layout)
fileSystems."/" = {
device = "/dev/disk/by-label/NIXOS_SD";
fsType = "ext4";
options = [ "noatime" ];
};
fileSystems."/boot/firmware" = {
device = "/dev/disk/by-label/FIRMWARE";
fsType = "vfat";
options = [ "fmask=0022" "dmask=0022" ];
};
swapDevices = [ ];
nixpkgs.hostPlatform = lib.mkDefault "aarch64-linux";
hardware.enableRedistributableFirmware = true;
powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
}