rec { system = { crossSystem = { config = "mips-unknown-linux-musl"; gcc = { abi = "32"; arch = "24kc"; # maybe mips_24kc- }; }; }; description = '' GL.iNet GL-AR750 **************** The GL-AR750 "Creta" travel router features: - QCA9531 @650Mhz SoC - dual band wireless: IEEE 802.11a/b/g/n/ac - two 10/100Mbps LAN ports and one WAN - 128MB DDR2 RAM - 16MB NOR Flash - supported in OpenWrt by the "ath79" SoC family As with many GL.iNet devices, the stock vendor firmware is a fork of OpenWrt, meaning that the plain binary ``firmware.bin`` that Liminix builds can be flashed using the vendor web UI and the U-Boot emergency "unbrick" routine The GL-AR750 has two distinct sets of wifi hardware. The 2.4GHz radio is part of the QCA9531 SoC, i.e. it's on the same silicon as the CPU, the Ethernet, the USB etc. The device is connected to the host via AHB, the "Advanced High-Performance Bus" and it is supported in Linux using the ath9k driver. The 5GHz support, on the other hand, is provided by a QCA9887 PCIe (PCI embedded) WLAN chip: I haven't looked closely at the router innards to see if this is actually physically a separate board that could be unplugged, but as far as Linux is concerned it behaves as one. This is supported by the ath10k driver. Vendor web page: https://www.gl-inet.com/products/gl-ar750/ OpenWrt web page: https://openwrt.org/toh/gl.inet/gl-ar750 ''; installer = "flashimage"; module = {pkgs, config, ... }: let openwrt = pkgs.openwrt; firmwareBlobs = pkgs.pkgsBuildBuild.fetchFromGitHub { owner = "kvalo"; repo = "ath10k-firmware"; rev = "5d63529ffc6e24974bc7c45b28fd1c34573126eb"; sha256 = "1bwpifrwl5mvsmbmc81k8l22hmkwk05v7xs8dxag7fgv2kd6lv2r"; }; firmware = pkgs.stdenv.mkDerivation { name = "wlan-firmware"; phases = ["installPhase"]; installPhase = '' mkdir -p $out/ath10k/QCA9887/hw1.0/ blobdir=${firmwareBlobs}/QCA9887/hw1.0 cp $blobdir/10.2.4-1.0/firmware-5.bin_10.2.4-1.0-00047 $out/ath10k/QCA9887/hw1.0/firmware-5.bin cp $blobdir/board.bin $out/ath10k/QCA9887/hw1.0/ ''; }; mac80211 = pkgs.mac80211.override { drivers = ["ath9k" "ath10k_pci"]; klibBuild = config.system.outputs.kernel.modulesupport; }; ath10k_cal_data = let offset = 1024 * 20; # 0x5000 size = 2048 + 68; # 0x844 in pkgs.liminix.services.oneshot rec { name = "ath10k_cal_data"; up = '' part=$(basename $(dirname $(grep -l art /sys/class/mtd/*/name))) echo ART partition is ''${part-unset} test -n "$part" || exit 1 (in_outputs ${name} dd if=/dev/$part of=data iflag=skip_bytes,fullblock bs=${toString size} skip=${toString offset} count=1 ) ''; }; inherit (pkgs.pseudofile) dir symlink; inherit (pkgs.liminix.networking) interface; in { imports = [ ../../modules/network ../../modules/arch/mipseb.nix ]; programs.busybox.options = { FEATURE_DD_IBS_OBS = "y"; # ath10k_cal_data needs skip_bytes,fullblock }; hardware = { defaultOutput = installer; loadAddress = "0x80060000"; entryPoint = "0x80060000"; flash = { address = "0x9F060000"; size ="0xfa0000"; eraseBlockSize = "65536"; }; rootDevice = "/dev/mtdblock5"; dts = { src = "${openwrt.src}/target/linux/ath79/dts/qca9531_glinet_gl-ar750.dts"; includes = [ "${openwrt.src}/target/linux/ath79/dts" ]; }; networkInterfaces = let inherit (config.system.service.network) link; in { lan = link.build { ifname = "eth0"; }; wan = link.build { ifname = "eth1"; }; wlan = link.build { ifname = "wlan0"; dependencies = [ mac80211 ]; }; wlan5 = link.build { ifname = "wlan1"; dependencies = [ mac80211 ath10k_cal_data ]; }; }; }; filesystem = dir { lib = dir { firmware = dir { ath10k = dir { QCA9887 = symlink "${firmware}/ath10k/QCA9887"; "cal-pci-0000:00:00.0.bin" = symlink "${ath10k_cal_data}/.outputs/data"; }; }; }; }; boot.tftp = { loadAddress = "0x00A00000"; }; kernel = { src = pkgs.pkgsBuildBuild.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.ath79} ''; config = { ATH79 = "y"; PCI = "y"; PCI_AR724X = "y"; SERIAL_8250_CONSOLE = "y"; SERIAL_8250 = "y"; SERIAL_CORE_CONSOLE = "y"; # need this to open console device at boot. dmesg goes from # [ 0.272934] Warning: unable to open an initial console. # to # [ 0.247413] printk: console [ttyS0] disabled # [ 0.25200] 18020000.uart: ttyS0 at MMIO 0x1802000 (irq = 10, base_baud = 1562500) is a 16550A SERIAL_OF_PLATFORM = "y"; CONSOLE_LOGLEVEL_DEFAULT = "8"; CONSOLE_LOGLEVEL_QUIET = "4"; NET = "y"; ETHERNET = "y"; NET_VENDOR_ATHEROS = "y"; AG71XX = "y"; # ethernet (qca,qca9530-eth) MFD_SYSCON = "y"; # ethernet (compatible "syscon") AR8216_PHY = "y"; # eth1 is behind a switch MTD_SPI_NOR = "y"; SPI_ATH79 = "y"; # these are copied from OpenWrt. SPI_MASTER= "y"; # At least one of them is necessary SPI_MEM= "y"; SPI_AR934X= "y"; SPI_BITBANG= "y"; SPI_GPIO= "y"; GPIO_ATH79 = "y"; GPIOLIB = "y"; EXPERT="y"; GPIO_SYSFS = "y"; # required by patches-5.15/0004-phy-add-ath79-usb-phys.patch OF_GPIO = "y"; SYSFS = "y"; SPI = "y"; MTD = "y"; MTD_BLOCK = "y"; # fix undefined ref to register_mtd_blktrans_devs WATCHDOG = "y"; ATH79_WDT = "y"; # watchdog timer # this is all copied from nixwrt ath79 config. Clearly not all # of it is device config, some of it is wifi config or # installation method config or ... EARLY_PRINTK = "y"; PRINTK_TIME = "y"; }; }; }; }