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liminix/devices/gl-mt300n-v2/default.nix

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Nix

{
system = {
crossSystem = {
config = "mipsel-unknown-linux-musl";
gcc = {
abi = "32";
arch = "mips32"; # maybe mips_24kc-
};
};
};
description = ''
GL.iNet GL-MT300N-v2
********************
The GL-MT300N-v2 "Mango" is is very similar to the :ref:`MT300A <GL.iNet GL-MT300A>, but is
based on the MT7628 chipset instead of MT7620. It's also marginally cheaper
and comes in a yellow case not a blue one. Be sure your device is
v2 not v1, which is a different animal and has only half as much RAM.
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-mt300n-v2/
OpenWrt web page: https://openwrt.org/toh/gl.inet/gl-mt300n_v2
'';
module = { pkgs, config, lib, lim, ...}:
let
inherit (pkgs.liminix.networking) interface;
inherit (pkgs.liminix.services) oneshot;
inherit (pkgs.pseudofile) dir symlink;
inherit (pkgs) openwrt;
mac80211 = pkgs.mac80211.override {
drivers = ["mt7603e"];
klibBuild = config.system.outputs.kernel.modulesupport;
};
wlan_firmware = pkgs.fetchurl {
url = "https://github.com/openwrt/mt76/raw/f24b56f935392ca1d35fae5fd6e56ef9deda4aad/firmware/mt7628_e2.bin";
hash = "sha256:1dkhfznmdz6s50kwc841x3wj0h6zg6icg5g2bim9pvg66as2vmh9";
};
in {
imports = [
../../modules/arch/mipsel.nix
../../modules/outputs/tftpboot.nix
../../modules/outputs/mtdimage.nix
../../modules/outputs/jffs2.nix
];
filesystem = dir {
lib = dir {
firmware = dir {
"mt7628_e2.bin" = symlink wlan_firmware;
};
};
};
hardware = {
defaultOutput = "mtdimage";
loadAddress = lim.parseInt "0x80000000";
entryPoint = lim.parseInt "0x80000000";
flash = {
address = lim.parseInt "0xbc050000";
size = lim.parseInt "0xfb0000";
eraseBlockSize = 65536;
};
rootDevice = "/dev/mtdblock5";
dts = {
src = "${openwrt.src}/target/linux/ramips/dts/mt7628an_glinet_gl-mt300n-v2.dts";
includes = [
"${openwrt.src}/target/linux/ramips/dts"
];
};
networkInterfaces =
let
inherit (config.system.service.network) link;
inherit (config.system.service) vlan;
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 = "swconfig dev switch0 set reset";
};
in rec {
eth = link.build { ifname = "eth0"; dependencies = [swconfig]; };
# lan and wan ports are both behind a switch on eth0
lan = vlan.build {
ifname = "eth0.1";
primary = eth;
vid = "1";
};
wan = vlan.build {
ifname = "eth0.2";
primary = eth;
vid = "2";
};
wlan = link.build {
ifname = "wlan0";
dependencies = [ mac80211 ];
};
};
};
boot.tftp = {
# 20MB seems to give enough room to uncompress the kernel
# without anything getting trodden on. 10MB was too small
loadAddress = lim.parseInt "0x1400000";
};
kernel = {
src = pkgs.fetchurl {
name = "linux.tar.gz";
url = "https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.15.137.tar.gz";
hash = "sha256-PkdzUKZ0IpBiWe/RS70J76JKnBFzRblWcKlaIFNxnHQ=";
};
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";
MTD = "y";
MTD_BLOCK = "y"; # fix undefined ref to register_mtd_blktrans_dev
SPI = "y";
MTD_SPI_NOR = "y";
SPI_MT7621 = "y";
SPI_MASTER= "y";
SPI_MEM= "y";
REGULATOR = "y";
REGULATOR_FIXED_VOLTAGE = "y";
NET = "y";
ETHERNET = "y";
PHYLIB = "y";
AT803X_PHY="y";
FIXED_PHY="y";
GENERIC_PHY="y";
NET_VENDOR_RALINK = "y";
NET_RALINK_RT3050 = "y";
NET_RALINK_SOC="y";
SWPHY = "y";
GPIOLIB="y";
GPIO_MT7621 = "y";
PHY_RALINK_USB = "y";
EARLY_PRINTK = "y";
PRINTK_TIME = "y";
} // lib.optionalAttrs (config.system.service ? vlan) {
SWCONFIG = "y";
} // lib.optionalAttrs (config.system.service ? watchdog) {
RALINK_WDT = "y"; # watchdog
MT7621_WDT = "y"; # or it might be this one
};
};
};
}