devices/zyxel-nwa50ax: init
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Raito Bezarius
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306
devices/zyxel-nwa50ax/default.nix
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306
devices/zyxel-nwa50ax/default.nix
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{
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system = {
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crossSystem = {
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config = "mipsel-unknown-linux-musl";
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gcc = {
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abi = "32";
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arch = "mips32"; # mips32r2?
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};
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};
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};
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description = ''
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Zyxel NWA50AX
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********************
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Zyxel NWA50AX is quite close to the GL-MT300N-v2 "Mango" device, but it is based on the MT7621
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chipset instead of the MT7628.
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Installation
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============
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Wow, this device is a handful.
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The stock vendor firmware is a downstream fork of U-Boot (insert link to source code)
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with restricted boot commands. Fortunately, OpenWrt folks figured out trivial command injections,
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so you can use most of the OpenWrt commands without trouble by just command injecting
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atns, atna or atnf, e.g. atns "; $real_command".
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From factory web UI, this has not been tested yet.
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From serial, you have two choices:
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- boot from an existing Liminix system, e.g. TFTPBOOT image.
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- boot from an OpenWrt system, i.e. follow OpenWrt steps.
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Once you are in a Linux system, understand that this device has A/B boot.
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OpenWrt provides you with `zyxel-bootconfig` to set/unset the image status and choice.
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The kernel is booted with `bootImage=<number>` which tells you which slot are you on.
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You should find yourself with 10ish MTD partitions, the most interesting ones are two:
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- firmware: 40MB
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- firmware_1: 40MB
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In the current setup, they are split further into kernel (8MB) and ubi (32MB).
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You will write the FIT uImage in the kernel MTD partition directly, via `mtd write kernel.uimage /dev/mtd4`
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(if `/dev/mtd4` is the kernel MTD partition) or `flashcp` can be used similarly.
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Then, you will install the UBI image, via `ubiformat -f ubi.image /dev/mtd5` (if `/dev/mtd4` was your kernel MTD partition, 5 must be the UBI).
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Once you are done, you will have to reboot and modify your bootargs in U-Boot
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because they are currently overridden.
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It is enough to do:
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atns "; setenv bootargs 'liminix console=ttyS0,115200 panic=10 oops=panic init=/bin/init loglevel=8 fw_devlink=off ubi.mtd=ubi root=ubi0:rootfs rootfstype=ubifs'"
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atns "; saveenv"
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Once you are done, you can enjoy booting on slot A unattended for now. To make use of the A/B feature, this is a TODO :).
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Upgrades are TODO too.
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Vendor web page: https://www.zyxel.com/fr/fr/products/wireless/ax1800-wifi-6-dual-radio-nebulaflex-access-point-nwa50ax
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OpenWrt web page: https://openwrt.org/inbox/toh/zyxel/nwa50ax
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OpenWrt tech data: https://openwrt.org/toh/hwdata/zyxel/zyxel_nwa50ax
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'';
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module = { pkgs, config, lib, lim, ...}:
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let
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inherit (pkgs.liminix.networking) interface;
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inherit (pkgs.liminix.services) oneshot;
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inherit (pkgs.pseudofile) dir symlink;
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inherit (pkgs) openwrt;
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mac80211 = pkgs.mac80211.override {
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drivers = [ "mt7915e" ];
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klibBuild = config.system.outputs.kernel.modulesupport;
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};
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wlan_firmware = pkgs.fetchurl {
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url = "https://github.com/openwrt/mt76/raw/2afc7285f75dca5a0583fd917285bf33f1429cc6/firmware/mt7915_wa.bin";
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hash = "sha256-wooyefzb0i8640+lwq3vNhcBXRFCtGuo+jiL7afZaKA=";
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};
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wlan_firmware' = pkgs.fetchurl {
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url = "https://github.com/openwrt/mt76/raw/2afc7285f75dca5a0583fd917285bf33f1429cc6/firmware/mt7915_wm.bin";
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hash = "sha256-k62nQewRuKjBLd5R3RxU4F74YKnQx5zr6gqMMImqVQw=";
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};
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wlan_firmware'' = pkgs.fetchurl {
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url = "https://github.com/openwrt/mt76/raw/2afc7285f75dca5a0583fd917285bf33f1429cc6/firmware/mt7915_rom_patch.bin";
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hash = "sha256-ifriAjWzFACrxVWCANZpUaEZgB/0pdbhnTVQytx6ddg=";
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};
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in {
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imports = [
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../../modules/arch/mipsel.nix
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../../modules/outputs/tftpboot.nix
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../../modules/outputs/zyxel-nwa-fit.nix
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];
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filesystem = dir {
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lib = dir {
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firmware = dir {
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mediatek = dir {
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"mt7915_wa.bin" = symlink wlan_firmware;
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"mt7915_wm.bin" = symlink wlan_firmware';
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"mt7915_rom_patch.bin" = symlink wlan_firmware'';
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};
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};
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};
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};
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rootfsType = "ubifs";
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hardware = {
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# Taken from OpenWRT
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# root@OpenWrt:/# ubinfo /dev/ubi0
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# ubi0
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# Volumes count: 2
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# Logical eraseblock size: 126976 bytes, 124.0 KiB
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# Total amount of logical eraseblocks: 256 (32505856 bytes, 31.0 MiB)
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# Amount of available logical eraseblocks: 0 (0 bytes)
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# Maximum count of volumes 128
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# Count of bad physical eraseblocks: 0
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# Count of reserved physical eraseblocks: 19
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# Current maximum erase counter value: 2
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# Minimum input/output unit size: 2048 bytes
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# Character device major/minor: 250:0
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# Present volumes: 0, 1
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ubi = {
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minIOSize = "2048";
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logicalEraseBlockSize = "126976";
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physicalEraseBlockSize = "128KiB";
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maxLEBcount = "256";
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};
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# This is a FIT containing a kernel padded and
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# a UBI volume rootfs.
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defaultOutput = "zyxel-nwa-fit";
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loadAddress = lim.parseInt "0x80001000";
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entryPoint = lim.parseInt "0x80001000";
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# Aligned on 2kb.
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alignment = 2048;
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flash = {
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address = lim.parseInt "0xbc050000";
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size = lim.parseInt "0xfb0000";
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eraseBlockSize = 65536;
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};
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rootDevice = "ubi0:rootfs";
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dts = {
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src = "${openwrt.src}/target/linux/ramips/dts/mt7621_zyxel_nwa50ax.dts";
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includes = [
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"${openwrt.src}/target/linux/ramips/dts"
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];
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};
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networkInterfaces =
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let
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inherit (config.system.service.network) link;
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in {
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eth = link.build { ifname = "eth0"; };
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lan = link.build { ifname = "lan"; };
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wlan0 = link.build {
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ifname = "wlan0";
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dependencies = [ mac80211 ];
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};
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wlan1 = link.build {
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ifname = "wlan1";
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dependencies = [ mac80211 ];
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};
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};
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};
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boot = {
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# Critical because NWA50AX will extend your cmdline with the image number booted.
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# and some bootloader version.
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# You don't want to find yourself being overridden.
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commandLineDtbNode = "bootargs-override";
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imageFormat = "fit";
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tftp = {
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# 5MB is nice.
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freeSpaceBytes = 5 * 1024 * 1024;
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loadAddress = lim.parseInt "0x2000000";
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};
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};
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# DEVICE_VENDOR := ZyXEL
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# KERNEL_SIZE := 8192k
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# DEVICE_PACKAGES := kmod-mt7915-firmware zyxel-bootconfig
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# KERNEL := kernel-bin | lzma | fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb
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# IMAGES += factory.bin ramboot-factory.bin
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# IMAGE/factory.bin := append-kernel | pad-to $$(KERNEL_SIZE) | append-ubi | zyxel-nwa-fit
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# IMAGE/ramboot-factory.bin := append-kernel | pad-to $$(KERNEL_SIZE) | append-ubi
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kernel = {
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src = pkgs.fetchurl {
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name = "linux.tar.gz";
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url = "https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.15.137.tar.gz";
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hash = "sha256-PkdzUKZ0IpBiWe/RS70J76JKnBFzRblWcKlaIFNxnHQ=";
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};
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extraPatchPhase = ''
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${openwrt.applyPatches.ramips}
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'';
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config = {
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RALINK = "y";
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PCI = "y";
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PHY_MT7621_PCI = "y";
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PCIE_MT7621 = "y";
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SOC_MT7621 = "y";
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CLK_MT7621 = "y";
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CLOCKSOURCE_WATCHDOG = "y";
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SERIAL_8250_CONSOLE = "y";
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SERIAL_8250 = "y";
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SERIAL_CORE_CONSOLE = "y";
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SERIAL_OF_PLATFORM = "y";
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SERIAL_8250_NR_UARTS = "3";
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SERIAL_8250_RUNTIME_UARTS = "3";
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SERIAL_MCTRL_GPIO = "y";
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CONSOLE_LOGLEVEL_DEFAULT = "8";
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CONSOLE_LOGLEVEL_QUIET = "4";
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# MTD_UBI_BEB_LIMIT = "20";
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# MTD_UBI_WL_THRESHOLD = "4096";
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MTD = "y";
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MTD_BLOCK = "y"; # fix undefined ref to register_mtd_blktrans_dev
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MTD_RAW_NAND = "y";
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MTD_NAND_MT7621 = "y";
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MTD_NAND_MTK_BMT = "y"; # Bad-block Management Table
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MTD_NAND_ECC_SW_HAMMING= "y";
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MTD_SPI_NAND= "y";
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MTD_OF_PARTS = "y";
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MTD_NAND_CORE= "y";
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MTD_SPLIT_FIRMWARE= "y";
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MTD_SPLIT_FIT_FW= "y";
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PINCTRL = "y";
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PINCTRL_MT7621 = "y";
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I2C = "y";
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I2C_MT7621 = "y";
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SPI = "y";
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MTD_SPI_NOR = "y";
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SPI_MT7621 = "y";
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SPI_MASTER = "y";
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SPI_MEM = "y";
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REGULATOR = "y";
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REGULATOR_FIXED_VOLTAGE = "y";
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RESET_CONTROLLER = "y";
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POWER_RESET = "y";
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POWER_RESET_GPIO = "y";
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POWER_SUPPLY = "y";
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LED_TRIGGER_PHY = "y";
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PCI_DISABLE_COMMON_QUIRKS = "y";
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PCI_DOMAINS = "y";
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PCI_DOMAINS_GENERIC = "y";
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PCI_DRIVERS_GENERIC = "y";
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PCS_MTK_LYNXI = "y";
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SOC_BUS = "y";
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NET = "y";
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ETHERNET = "y";
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WLAN = "y";
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PHYLIB = "y";
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AT803X_PHY = "y";
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FIXED_PHY = "y";
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GENERIC_PHY = "y";
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NET_DSA = "y";
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NET_DSA_MT7530 = "y";
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NET_DSA_MT7530_MDIO = "y";
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NET_DSA_TAG_MTK = "y";
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NET_MEDIATEK_SOC = "y";
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NET_SWITCHDEV = "y";
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NET_VENDOR_MEDIATEK = "y";
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SWPHY = "y";
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GPIOLIB = "y";
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GPIO_MT7621 = "y";
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OF_GPIO = "y";
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EARLY_PRINTK = "y";
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NEW_LEDS = "y";
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LEDS_TRIGGERS = "y";
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LEDS_CLASS = "y"; # required by rt2x00lib
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LEDS_CLASS_MULTICOLOR = "y";
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LEDS_BRIGHTNESS_HW_CHANGED = "y";
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PRINTK_TIME = "y";
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} // lib.optionalAttrs (config.system.service ? vlan) {
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SWCONFIG = "y";
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} // lib.optionalAttrs (config.system.service ? watchdog) {
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RALINK_WDT = "y"; # watchdog
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MT7621_WDT = "y"; # or it might be this one
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};
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};
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};
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}
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