first commit

2024-07-28 23:28:50 +00:00
commit c3a0fdac00
8 changed files with 325 additions and 0 deletions
@@ -0,0 +1,131 @@
+{ config, lib, pkgs, ... }:
+
+let
+  inherit (config.boot.loader) efi;
+
+  linux_x1e_pkg = { buildLinux, ... } @ args:
+    buildLinux (args // rec {
+      version = "6.10.0";
+      modDirVersion = "6.10.0-next-20240725";
+
+      src = pkgs.fetchFromGitLab {
+        domain = "git.codelinaro.org";
+        owner = "abel.vesa";
+        repo = "linux";
+        rev = "x1e80100-20240725"; # "x1e80100-next";
+        hash = "sha256-0DFmPJEFl+cQT3Li4vuptBwavRc9CQOatd8TIYht+54=";
+      };
+      kernelPatches = (args.kernelPatches or [ ]);
+
+      extraMeta.branch = "6.10";
+    } // (args.argsOverride or { }));
+
+  linux_x1e = pkgs.callPackage linux_x1e_pkg { defconfig = "x1e_defconfig"; };
+  linuxPackages_x1e = pkgs.recurseIntoAttrs (pkgs.linuxPackagesFor linux_x1e);
+
+  dtb = "${linuxPackages_x1e.kernel}/dtbs/qcom/x1e78100-lenovo-thinkpad-t14s.dtb";
+  dtbHash = builtins.hashFile "md5" dtb;
+  dtbName = "x1e80100-${dtbHash}.dtb";
+in {
+  boot = {
+    kernelPackages = linuxPackages_x1e;
+
+    kernelParams = [
+      "dtb=${dtbName}"
+
+      #"initcall_debug"
+
+      #"earlycon=efifb"
+      "console=tty0"
+      #"ignore_loglevel"
+      #"keep_bootcon"
+
+      "regulator_ignore_unused"
+      "clk_ignore_unused"
+      "pd_ignore_unused"
+      "arm64.nopauth"
+      #"acpi=no"
+      "efi=novamap"
+      #"efi=noruntime"
+
+      "pcie_aspm.policy=powersupersave"
+      "iommu.strict=0"
+      "iommu.passthrough=0"
+
+      #"earlyprintk=xdbc"
+      #"usbcore.autosuspend=-1"
+      "module_blacklist=edac_core,qcom_q6v5_pas"
+    ];
+
+    supportedFilesystems.zfs = false;
+
+    initrd = {
+      includeDefaultModules = false;
+
+      availableKernelModules = [
+        "nvme"
+        "uas"
+        "usb-storage"
+
+        "gpio-sbu-mux"
+        "leds-qcom-lpg"
+        "msm"
+        "panel-edp"
+        "pmic-glink-altmode"
+        "pwm-bl"
+        "qrtr"
+
+        "i2c-core"
+        "i2c-hid"
+        "i2c-hid-of"
+        "i2c-qcom-geni"
+
+        "phy-qcom-edp"
+        "phy-qcom-eusb2-repeater"
+        "phy-qcom-qmp-combo"
+        "phy-qcom-qmp-pcie"
+        "phy-qcom-qmp-usb"
+        "phy-qcom-snps-eusb2"
+        "phy-qcom-snps-femto-v2"
+        "phy-qcom-usb-hs"
+
+        "dispcc-x1e80100"
+        "gpucc-x1e80100"
+        "tcsrcc-x1e80100"
+
+        # fat32
+        "vfat" "nls-cp437" "nls-iso8859-1"
+      ];
+
+      systemd = {
+        enable = true;
+        enableTpm2 = false;
+      };
+    };
+
+    loader = {
+      systemd-boot.enable = lib.mkForce true;
+      efi.canTouchEfiVariables = false;
+      systemd-boot.extraFiles = {
+        "${dtbName}" = dtb;
+      };
+    };
+  };
+
+  system.activationScripts.t14s-gen6-dtb = ''
+    in_package="${dtb}"
+    esp_tool_folder="${efi.efiSysMountPoint}/"
+    in_esp="''${esp_tool_folder}${dtbName}"
+    in_esp_backup="''${esp_tool_folder}/dtb/${dtbName}"
+    in_esp_backup_dir="''${esp_tool_folder}/dtb/"
+    mkdir -p "$in_esp_backup_dir"
+    cp "$in_package" "$in_esp_backup"
+    >&2 echo "Ensuring $in_esp in EFI System Partition"
+    if ! ${pkgs.diffutils}/bin/cmp --silent "$in_package" "$in_esp"; then
+      >&2 echo "Copying $in_package -> $in_esp"
+      mkdir -p "$esp_tool_folder"
+      cp "$in_package" "$in_esp"
+      sync
+    fi
+  '';
+}