From c50c9710f0c144ce58392f95debd997d078751f5 Mon Sep 17 00:00:00 2001
From: Infinidoge <infinidoge@inx.moe>
Date: Sun, 23 Jun 2024 15:49:33 -0400
Subject: [PATCH] WIP: Infini-RASPBERRY: copy options from sd image experiment

---
 hosts/Infini-RASPBERRY/default.nix  | 16 +++++-
 hosts/Infini-RASPBERRY/sd-image.nix | 87 +++++++++++++++++++++++++++++
 2 files changed, 101 insertions(+), 2 deletions(-)
 create mode 100644 hosts/Infini-RASPBERRY/sd-image.nix

diff --git a/hosts/Infini-RASPBERRY/default.nix b/hosts/Infini-RASPBERRY/default.nix
index d3d644f..fad24a9 100644
--- a/hosts/Infini-RASPBERRY/default.nix
+++ b/hosts/Infini-RASPBERRY/default.nix
@@ -3,7 +3,7 @@ with lib;
 {
   imports = [
     inputs.nixos-hardware.nixosModules.raspberry-pi-4
-    inputs.nixos-generators.nixosModules.sd-aarch64
+    ./sd-image.nix
   ];
 
   system.stateVersion = "23.11";
@@ -24,11 +24,14 @@ with lib;
     wireless.enable = mkDefault true;
   };
 
+  systemd.services.wpa_aupplicant.wantedBy = lib.mkOverride 10 [ "multi-user.target" ];
+
   boot = {
+    consoleLogLevel = lib.mkDefault 7;
     kernelPackages = mkForce pkgs.linuxPackages_rpi4;
 
     # Removes ZFS >:(
-    supportedFilesystems = mkForce [ "btrfs" "cifs" "f2fs" "jfs" "ntfs" "reiserfs" "vfat" "xfs" "ext4" "vfat" ];
+    supportedFilesystems = mkForce [ "btrfs" "ntfs" "vfat" "ext4" ];
 
     tmp.useTmpfs = true;
     # kernelParams = [
@@ -43,6 +46,15 @@ with lib;
     };
   };
 
+  documentation = {
+    enable = false;
+    doc.enable = false;
+    man.enable = false;
+    man.man-dp.enable = false;
+    man.mandoc.enable = false;
+    nixos.enable = false;
+  };
+
   hardware.deviceTree = {
     enable = true;
     # filter = "*rpi-4-*.dtb";
diff --git a/hosts/Infini-RASPBERRY/sd-image.nix b/hosts/Infini-RASPBERRY/sd-image.nix
new file mode 100644
index 0000000..b1d1785
--- /dev/null
+++ b/hosts/Infini-RASPBERRY/sd-image.nix
@@ -0,0 +1,87 @@
+{ modulesPath, config, lib, pkgs, ... }:
+
+{
+  formatAttr = "sdImage";
+
+  imports = [
+    "${modulesPath}/installer/sd-card/sd-image.nix"
+    "${modulesPath}/profiles/installation-device.nix"
+  ];
+
+  # sd-image-aarch64-installer/sd-image-raspberrypi-installer
+  installer.cloneConfig = false;
+
+  # sd-image-raspberrypi
+  boot.consoleLogLevel = lib.mkDefault 7;
+  boot.kernelPackages = pkgs.linuxKernel.packages.linux_rpi4;
+
+  # The serial ports listed here are:
+  # - ttyS0: for Tegra (Jetson TX1)
+  # - ttyAMA0: for QEMU's -machine virt
+  boot.kernelParams = [ "console=ttyS0,115200n8" "console=ttyAMA0,115200n8" "console=tty0" ];
+
+  sdImage = {
+    populateFirmwareCommands =
+      let
+        configTxt = pkgs.writeText "config.txt" ''
+          [pi3]
+          kernel=u-boot-rpi3.bin
+
+          [pi02]
+          kernel=u-boot-rpi3.bin
+
+          [pi4]
+          kernel=u-boot-rpi4.bin
+          enable_gic=1
+          armstub=armstub8-gic.bin
+
+          # Otherwise the resolution will be weird in most cases, compared to
+          # what the pi3 firmware does by default.
+          disable_overscan=1
+
+          # Supported in newer board revisions
+          arm_boost=1
+
+          [cm4]
+          # Enable host mode on the 2711 built-in XHCI USB controller.
+          # This line should be removed if the legacy DWC2 controller is required
+          # (e.g. for USB device mode) or if USB support is not required.
+          otg_mode=1
+
+          [all]
+          # Boot in 64-bit mode.
+          arm_64bit=1
+
+          # U-Boot needs this to work, regardless of whether UART is actually used or not.
+          # Look in arch/arm/mach-bcm283x/Kconfig in the U-Boot tree to see if this is still
+          # a requirement in the future.
+          enable_uart=1
+
+          # Prevent the firmware from smashing the framebuffer setup done by the mainline kernel
+          # when attempting to show low-voltage or overtemperature warnings.
+          avoid_warnings=1
+        '';
+      in
+      ''
+        (cd ${pkgs.raspberrypifw}/share/raspberrypi/boot && cp bootcode.bin fixup*.dat start*.elf $NIX_BUILD_TOP/firmware/)
+
+        # Add the config
+        cp ${configTxt} firmware/config.txt
+
+        # Add pi3 specific files
+        cp ${pkgs.ubootRaspberryPi3_64bit}/u-boot.bin firmware/u-boot-rpi3.bin
+
+        # Add pi4 specific files
+        cp ${pkgs.ubootRaspberryPi4_64bit}/u-boot.bin firmware/u-boot-rpi4.bin
+        cp ${pkgs.raspberrypi-armstubs}/armstub8-gic.bin firmware/armstub8-gic.bin
+        cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-4-b.dtb firmware/
+        cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-400.dtb firmware/
+        cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-cm4.dtb firmware/
+        cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-cm4s.dtb firmware/
+      '';
+    populateRootCommands = ''
+      mkdir -p ./files/boot
+      ${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
+    '';
+  };
+}