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Merge pull request #247 from NixOS/mnt-reform2-nitrogen8m
Add mnt-reform2-nitrogen8m
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‎README.md

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@@ -136,6 +136,7 @@ See code for all available configurations.
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| [Lenovo ThinkPad X13][] | `<nixos-hardware/lenovo/thinkpad/x13` |
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| [Microsoft Surface Range][] | `<nixos-hardware/microsoft/surface>` |
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| [Microsoft Surface Pro 3][] | `<nixos-hardware/microsoft/surface-pro/3>` |
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| [MNT Reform (i.MX8M)][] | `<nixos-hardware/mnt/reform2-nitrogen8m>` |
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| [MSI GS60 2QE][] | `<nixos-hardware/msi/gs60>` |
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| PC Engines APU | `<nixos-hardware/pcengines/apu>` |
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| [Raspberry Pi 2][] | `<nixos-hardware/raspberry-pi/2>` |

‎flake.nix

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lenovo-thinkpad-x13-yoga = import ./lenovo/thinkpad/x13-yoga;
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microsoft-surface = import ./microsoft/surface;
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microsoft-surface-pro-3 = import ./microsoft/surface-pro/3;
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mnt-reform2-nitrogen8m = import ./mnt/reform2-nitrogen8m;
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pcengines-apu = import ./pcengines/apu;
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raspberry-pi-2 = import ./raspberry-pi/2;
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raspberry-pi-4 = import ./raspberry-pi/4;

‎mnt/reform2-nitrogen8m/default.nix

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{ config, lib, pkgs, ... }:
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{
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imports = [ ../../common/pc/laptop/ssd ];
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boot = {
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kernelPackages = lib.mkDefault pkgs.linuxPackages_reformNitrogen8m_latest;
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kernelParams = [ "console=ttymxc0,115200" "console=tty1" "pci=nomsi" ];
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extraModprobeConfig = "options imx-dcss dcss_use_hdmi=0";
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initrd = {
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kernelModules = [ "nwl-dsi" "imx-dcss" ];
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availableKernelModules = # hack to remove ATA modules
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lib.mkForce ([
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"cryptd"
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"dm_crypt"
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"dm_mod"
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"input_leds"
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"mmc_block"
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"nvme"
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"usbhid"
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"xhci_hcd"
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] ++ config.boot.initrd.luks.cryptoModules);
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};
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loader = {
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generic-extlinux-compatible.enable = lib.mkDefault true;
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grub.enable = lib.mkDefault false;
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timeout = lib.mkDefault 1;
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# Cannot interact with U-Boot directly
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};
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};
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environment.etc."systemd/system.conf".text = "DefaultTimeoutStopSec=15s";
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environment.systemPackages = with pkgs; [ brightnessctl usbutils ];
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hardware.deviceTree.name = lib.mkDefault "freescale/imx8mq-mnt-reform2.dtb";
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hardware.pulseaudio.daemon.config.default-sample-rate = lib.mkDefault "48000";
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nixpkgs = {
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system = "aarch64-linux";
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overlays = [
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(final: prev:
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with final; {
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linux_5_7 = callPackage ./kernel/linux-5.7.nix {
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kernelPatches = [
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kernelPatches.bridge_stp_helper
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kernelPatches.request_key_helper
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kernelPatches.export_kernel_fpu_functions."5.3"
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];
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};
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linux_reformNitrogen8m_latest =
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callPackage ./kernel { kernelPatches = [ ]; };
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linuxPackages_reformNitrogen8m_latest =
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linuxPackagesFor linux_reformNitrogen8m_latest;
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ubootReformImx8mq = callPackage ./uboot { };
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})
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];
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};
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programs.sway.extraPackages = # unbloat
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lib.mkDefault (with pkgs; [ swaylock swayidle xwayland ]);
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system.activationScripts.asound = let
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initialAsoundState = pkgs.fetchurl {
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url =
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"https://source.mnt.re/reform/reform-system-image/-/raw/84bec717ad7366b1d385f3200da192efb0f5bccb/reform2-imx8mq/template-etc/asound.state";
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sha256 = "11wfy8fad5mhr6bga36k7lri85wq74rfzwj9bb9j5rp5cll4jnmb";
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};
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in ''
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if [ ! -e "/var/lib/alsa/asound.state" ]; then
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mkdir -p /var/lib/alsa
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cp ${initialAsoundState} /var/lib/alsa/asound.state
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fi
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'';
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}

‎mnt/reform2-nitrogen8m/kernel/default.nix

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{ lib, buildLinux, fetchurl, fetchgit, linux_5_7, kernelPatches, ... }@args:
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let
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linux = linux_5_7;
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systemImageSrc = fetchgit {
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url = "https://source.mnt.re/reform/reform-system-image.git";
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rev = "ef6bae4def9ef08ee388254abf4f1839d44c07a1";
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sha256 = "03nnwjzm8a0bk821p6sfscd04x3jgj29l16ccdkg10xcv2g2z5s8";
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} + "/reform2-imx8mq";
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in lib.overrideDerivation (buildLinux (args // {
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inherit (linux) src version;
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features = {
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efiBootStub = false;
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iwlwifi = false;
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} // (args.features or { });
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kernelPatches = let
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patchDir = "${systemImageSrc}/template-kernel/patches";
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reformPatches = map ({ name, extraConfig ? "" }: {
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inherit name extraConfig;
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patch = "${patchDir}/${name}.patch";
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}) [
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{
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name = "0001-drm-bridge-Add-NWL-MIPI-DSI-host-controller-support";
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extraConfig = ''
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DRM_NWL_MIPI_DSI m
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'';
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}
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{ name = "0002-dt-bindings-display-bridge-Add-binding-for-NWL-mipi-"; }
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{
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name =
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"0003-DCSS-v4-Add-support-for-iMX8MQ-Display-Controller-Subsystem";
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extraConfig = ''
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DRM_IMX_DCSS m
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'';
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}
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{ name = "4101-media-vb2-wait-for-dmabuf-fences"; }
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{ name = "4201-HACK-media-vb2-don-t-validate-buffer-length"; }
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{ name = "44f0bbdcf0433052b4e85940cb41d04c13fdad57"; }
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{ name = "git.linuxtv.org-28a202c55963386b8bc45bcc52029362e9aa0d33"; }
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{ name = "git.linuxtv.org-88d06362d1d052e4c844ac95a2ca308ed4d90452"; }
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{ name = "mnt1000-pcie-reparent-clocks"; }
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{ name = "mnt1001-pcie-support-internal-refclk-aspm"; }
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{ name = "mnt2000-audio-wm8960-add-dacslope-setting"; }
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{ name = "mnt2001-audio-sai-workaround-rate-matching"; }
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{ name = "mnt3000-imx-dcss-tweak-DCSS-pixel-rate-to-prevent-sporadic-d"; }
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{ name = "mnt3001-nwl-dsi-disable-bridge_mode_fixup-that-breaks-hs-vs-"; }
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{ name = "mnt3002-MNT-Reform2-add-simple-panel-Innolux-N125HCE-GN1"; }
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{
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name = "mnt3003-MNT-Reform-import-cadence-HDMI-driver-for-imx8mq-fro";
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extraConfig = ''
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DRM_CDNS_AUDIO m
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DRM_CDNS_DP m
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DRM_CDNS_HDMI m
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DRM_CDNS_HDMI_CEC m
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DRM_CDNS_MHDP m
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'';
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}
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{ name = "mnt3004-MNT-Reform-imx8mq-add-PHY_27M-clock"; }
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{ name = "mnt3005-MNT-Reform-imx8mq-DCSS-add-module-option-to-toggle-h"; }
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{ name = "mnt3006-MNT-Reform-imx8mq-add-PHY_27M-clock-missing-define"; }
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{
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name = "mnt3007-MNT-Reform-imx8mq-missing-kconf-makefile-for-cadence";
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extraConfig = ''
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DRM_IMX_CDNS_MHDP m
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DRM_IMX_DCSS m
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'';
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}
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{
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name = "mnt3008-MNT-Reform-imx8mq-missing-makefile-change-for-imx-dc";
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extraConfig = ''
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DRM_IMX_DCSS m
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'';
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}
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];
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in lib.lists.unique (kernelPatches ++ reformPatches ++ [{
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name = "MNT-Reform-imx8mq-config";
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patch = null;
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extraConfig = fetchurl {
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url =
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"https://github.com/NixOS/nixos-hardware/releases/download/mnt-reform2-nitrogen8m-v1/kernel-config";
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sha256 = "1brazbr9zflb29i4fjhwn1z87bg475lqvzkksvi5n775zx28fk65";
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};
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}]);
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allowImportFromDerivation = true;
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} // (args.argsOverride or { }))) (attrs: {
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prePatch = attrs.prePatch + ''
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cp ${systemImageSrc}/template-kernel/*.dts arch/arm64/boot/dts/freescale/
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cp ${systemImageSrc}/template-kernel/*.dtsi arch/arm64/boot/dts/freescale/
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echo 'dtb-$(CONFIG_ARCH_MXC) += imx8mq-mnt-reform2.dtb' >> \
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arch/arm64/boot/dts/freescale/Makefile
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'';
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makeFlags = attrs.makeFlags ++ [ "LOADADDR=0x40480000" ];
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})

‎mnt/reform2-nitrogen8m/kernel/linux-5.7.nix

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{ lib, stdenv, buildPackages, fetchurl, perl, buildLinux, modDirVersionArg ? null, ... } @ args:
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with lib;
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buildLinux (args // rec {
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version = "5.7.19";
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# modDirVersion needs to be x.y.z, will automatically add .0 if needed
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modDirVersion = if (modDirVersionArg == null) then concatStringsSep "." (take 3 (splitVersion "${version}.0")) else modDirVersionArg;
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# branchVersion needs to be x.y
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extraMeta.branch = versions.majorMinor version;
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src = fetchurl {
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url = "mirror://kernel/linux/kernel/v5.x/linux-${version}.tar.xz";
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sha256 = "1rwzp51ddlkdzanj6i8jqj5yh0njpzn7ly4r8nnzwkdfp5465721";
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};
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} // (args.argsOverride or {}))

‎mnt/reform2-nitrogen8m/uboot/default.nix

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{ buildUBoot, fetchgit }:
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buildUBoot rec {
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pname = "uboot-reform2-imx8mq";
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version = "2020-06-01";
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src = fetchgit {
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url = "https://source.mntmn.com/MNT/reform-boundary-uboot.git";
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rev = version;
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sha256 = "0ychnwhisjqm0gzyz0nv9xynl9g114xmxpwz4vm0l5w6sc60jshw";
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};
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defconfig = "nitrogen8m_som_4g_defconfig";
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extraMeta.platforms = [ "aarch64-linux" ];
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filesToInstall = [ "flash.bin" ];
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patches = [ ./shell-syntax.patch ./env_vars.patch ];
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makeFlags = filesToInstall;
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}

‎mnt/reform2-nitrogen8m/uboot/env_vars.patch

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commit 32ba0e0bf12827a67959f435e457fb4594a6708f
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Author: Emery Hemingway <[email protected]>
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Date: Mon Jul 27 10:18:38 2020 +0200
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reform: set envvars for booting NixOS
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diff --git a/board/boundary/nitrogen8m_som/nitrogen8m_som.c b/board/boundary/nitrogen8m_som/nitrogen8m_som.c
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index d4d866001d..d1fac5934f 100644
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--- a/board/boundary/nitrogen8m_som/nitrogen8m_som.c
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+++ b/board/boundary/nitrogen8m_som/nitrogen8m_som.c
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@@ -322,17 +322,13 @@ void init_usb_clk(int usbno);
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static void set_env_vars(void)
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{
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- printf("set_env_vars()");
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- env_set("board", "MNT Reform 2.0"); // "nitrogen8m_som");
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+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
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+ if (!env_get("board"))
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+ env_set("board", "imx8mq-mnt-reform2");
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env_set("soc", "imx8mq");
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env_set("imx_cpu", get_imx_type((get_cpu_rev() & 0xFF000) >> 12));
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env_set("uboot_defconfig", CONFIG_DEFCONFIG);
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-
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- // MNT Reform 2
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- env_set("fdt_addr", "0x50000000");
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- env_set("bootargs", "noinitrd root=/dev/mmcblk1p1 rootwait rw console=ttymxc0,115200 console=tty1 cma=512M no_console_suspend pci=nomsi");
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- env_set("bootcmd", "ext4load mmc 1 ${loadaddr} /Image; ext4load mmc 1 ${fdt_addr} /imx8mq-mnt-reform2.dtb; booti ${loadaddr} - ${fdt_addr}");
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- env_set("bootdelay", "1");
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+#endif
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}
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void board_set_default_env(void)
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diff --git a/include/configs/nitrogen8m_som.h b/include/configs/nitrogen8m_som.h
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index 3ada3900db..548e7cd71c 100644
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--- a/include/configs/nitrogen8m_som.h
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+++ b/include/configs/nitrogen8m_som.h
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@@ -208,7 +208,7 @@
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#define SYS_AUXCORE_BOOTDATA_DDR 0x80000000
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#define SYS_AUXCORE_BOOTDATA_TCM 0x007E0000
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-/*#define CONFIG_EXTRA_ENV_SETTINGS \
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+#define CONFIG_EXTRA_ENV_SETTINGS \
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"console=" BD_CONSOLE "\0" \
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"env_dev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \
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"env_part=" __stringify(CONFIG_SYS_MMC_ENV_PART) "\0" \
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@@ -247,7 +247,10 @@
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"setenv ipaddr 10.0.0.2; " \
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"setenv netmask 255.255.255.0; " \
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"setenv serverip 10.0.0.1;\0" \
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- BOOTENV*/
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+ BOOTENV \
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+ "kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
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+ "ramdisk_addr_r=0x44480000\0" \
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+ "fdt_addr_r=0x43000000\0"
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/*
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* PCI express

‎mnt/reform2-nitrogen8m/uboot/shell-syntax.patch

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diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
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index f8c3fff1d1..bb68e119e2 100644
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--- a/scripts/Makefile.lib
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+++ b/scripts/Makefile.lib
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@@ -299,7 +299,7 @@ quiet_cmd_dtc = DTC $@
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# Modified for U-Boot
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# Bring in any U-Boot-specific include at the end of the file
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cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
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- (cat $<; $(if $(u_boot_dtsi),echo '\#include "$(u_boot_dtsi)"')) > $(pre-tmp); \
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+ (cat $<; $(if $(u_boot_dtsi),echo '#include "$(u_boot_dtsi)"')) > $(pre-tmp); \
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$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $(pre-tmp) ; \
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$(DTC) -O dtb -o $@ -b 0 \
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-i $(dir $<) $(DTC_FLAGS) \

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