liminix

default.nix (5686B)

---

 # GL.iNet GL-MT300A
 
 {
   system = {
     crossSystem = {
       config = "mipsel-unknown-linux-musl";
       gcc = {
         abi = "32";
         arch = "mips32";          # maybe mips_24kc-
       };
     };
   };
 
   description = ''
     GL.iNet GL-MT300A
     *****************
 
     The GL-MT300A is based on a MT7620 chipset.
 
     For flashing from U-Boot, the firmware partition is from
     0xbc050000 to 0xbcfd0000.
 
     WiFi on this device is provided by the rt2800soc module. It
     expects firmware to be present in the "factory" MTD partition, so
     - assuming we want to use the wireless - we need to build MTD
     support into the kernel even if we're using TFTP root.
 
     Installation
     ============
 
     The stock vendor firmware is a fork of OpenWrt, meaning that the
     binary created by :ref:`system-outputs-mtdimage` can be flashed
     using the vendor web UI or the U-Boot emergency "unbrick" routine.
 
     For flashing from an existing Liminix system (we think) it
     is necessary to first boot into a :ref:`system-outputs-kexecboot`
     system, otherwise you'll be overwriting flash partitions while
     they're in use - and that might not end well.
 
     Vendor web page: https://www.gl-inet.com/products/gl-mt300a/
 
     OpenWrt web page: https://openwrt.org/toh/gl.inet/gl-mt300a
 
   '';
 
   module = { pkgs, config, lib, lim, ...}:
     let
       inherit (pkgs.liminix.networking) interface;
       inherit (pkgs) openwrt;
       mac80211 = pkgs.mac80211.override {
         drivers = ["rt2800soc"];
         klibBuild = config.system.outputs.kernel.modulesupport;
       };
     in {
       imports = [
         ../../modules/arch/mipsel.nix
         ../../modules/outputs/tftpboot.nix
         ../../modules/outputs/mtdimage.nix
         ../../modules/outputs/jffs2.nix
       ];
       hardware = {
         defaultOutput = "mtdimage";
         loadAddress = lim.parseInt "0x80000000";
         entryPoint = lim.parseInt "0x80000000";
 
         # Creating 5 MTD partitions on "spi0.0":
         # 0x000000000000-0x000000030000 : "u-boot"
         # 0x000000030000-0x000000040000 : "u-boot-env"
         # 0x000000040000-0x000000050000 : "factory"
         # 0x000000050000-0x000000fd0000 : "firmware"
         # 2 uimage-fw partitions found on MTD device firmware
         # Creating 2 MTD partitions on "firmware":
         # 0x000000000000-0x000000260000 : "kernel"
         # 0x000000260000-0x000000f80000 : "rootfs"
 
         flash = {
           address = lim.parseInt "0xbc050000";
           size = lim.parseInt "0xf80000";
           eraseBlockSize = 65536;
         };
         rootDevice = "/dev/mtdblock5";
 
         dts = {
           src = "${openwrt.src}/target/linux/ramips/dts/mt7620a_glinet_gl-mt300a.dts";
           includes = [
             "${openwrt.src}/target/linux/ramips/dts"
           ];
         };
         networkInterfaces =
           let
             inherit (config.system.service.network) link;
             inherit (config.system.service) vlan;
             inherit (pkgs.liminix.services) oneshot;
             swconfig = oneshot {
               name = "swconfig";
               up = ''
                 PATH=${pkgs.swconfig}/bin:$PATH
                 swconfig dev switch0 set reset
                 swconfig dev switch0 set enable_vlan 1
                 swconfig dev switch0 vlan 1 set ports '1 2 3 4 6t'
                 swconfig dev switch0 vlan 2 set ports '0 6t'
                 swconfig dev switch0 set apply
               '';
               down = "${pkgs.swconfig}/bin/swconfig dev switch0 set reset";
             };
           in rec {
             eth = link.build { ifname = "eth0"; };
             # lan and wan ports are both behind a switch on eth0
             lan = vlan.build {
               ifname = "eth0.1";
               primary = eth;
               vid = "1";
               dependencies =  [swconfig eth];
             };
             wan = vlan.build {
               ifname = "eth0.2";
               primary = eth;
               vid = "2";
               dependencies =  [swconfig eth];
             };
             wlan = link.build {
               ifname = "wlan0";
               dependencies = [ mac80211 ];
             };
           };
       };
       boot.tftp = {
         loadAddress = lim.parseInt "0x00A00000";
       };
 
       kernel = {
         src = pkgs.fetchurl {
           name = "linux.tar.gz";
           url = "https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.15.71.tar.gz";
           hash = "sha256-yhO2cXIeIgUxkSZf/4aAsF11uxyh+UUZu6D1h92vCD8=";
         };
         extraPatchPhase = ''
           ${openwrt.applyPatches.ramips}
         '';
         config = {
 
           RALINK = "y";
           PCI = "y";
           SOC_MT7620 = "y";
 
           SERIAL_8250_CONSOLE = "y";
           SERIAL_8250 = "y";
           SERIAL_CORE_CONSOLE = "y";
           SERIAL_OF_PLATFORM = "y";
 
           CONSOLE_LOGLEVEL_DEFAULT = "8";
           CONSOLE_LOGLEVEL_QUIET = "4";
 
           NET = "y";
           ETHERNET = "y";
           NET_VENDOR_RALINK = "y";
           NET_RALINK_MDIO = "y";
           NET_RALINK_MDIO_MT7620 = "y";
           NET_RALINK_MT7620 = "y";
           SWPHY = "y";
 
           SPI = "y";
           MTD_SPI_NOR = "y";
           SPI_MT7621 = "y"; # } probably don't need both of these
           SPI_RT2880 = "y"; # }
           SPI_MASTER= "y";
           SPI_MEM= "y";
 
           MTD = "y";
           MTD_BLOCK = "y";         # fix undefined ref to register_mtd_blktrans_devs
 
           EARLY_PRINTK = "y";
 
           NEW_LEDS = "y";
           LEDS_CLASS = "y";         # required by rt2x00lib
 
           PRINTK_TIME = "y";
         } // lib.optionalAttrs (config.system.service ? vlan) {
           SWCONFIG = "y";
         };
       };
     };
 }