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liminix/devices/belkin-rt3200/default.nix

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Nix

{
description = ''
Belkin RT-3200 / Linksys E8450
******************************
This device is based on a 64 bit Mediatek MT7622 ARM platform,
and is "work in progress" in Liminix.
.. note:: The factory flash image contains ECC errors that make it
incompatible with Liminix: you need to use the `OpenWrt
UBI Installer <https://github.com/dangowrt/owrt-ubi-installer>`_ to
rewrite the partition layout before you can flash
Liminix onto it (or even use it with
:ref:`system-outputs-tftpboot`, if you want the wireless
to work).
Hardware summary
================
- MediaTek MT7622BV (1350MHz)
- 128MB NAND flash
- 512MB RAM
- b/g/n wireless using MediaTek MT7622BV (MT7615E driver)
- a/n/ac/ax wireless using MediaTek MT7915E
Installation
============
Installation is currently a manual process (you need a :ref:`serial <serial>` conection and
TFTP) following the instructions at :ref:`system-outputs-ubimage`
'';
system = {
crossSystem = {
config = "aarch64-unknown-linux-musl";
};
};
module = {pkgs, config, lib, lim, ... }:
let firmware = pkgs.stdenv.mkDerivation {
name = "wlan-firmware";
phases = ["installPhase"];
installPhase = ''
mkdir $out
cp ${pkgs.linux-firmware}/lib/firmware/mediatek/{mt7915,mt7615,mt7622}* $out
'';
};
in {
imports = [
../../modules/arch/aarch64.nix
../../modules/outputs/tftpboot.nix
../../modules/outputs/ubifs.nix
];
config = {
kernel = {
src = pkgs.pkgsBuildBuild.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 = ''
${pkgs.openwrt.applyPatches.mediatek}
'';
config = {
PCI = "y";
ARCH_MEDIATEK = "y";
# ARM_MEDIATEK_CPUFREQ = "y";
# needed for "Cannot find regmap for /infracfg@10000000"
MFD_SYSCON = "y";
MTK_INFRACFG = "y";
MTK_PMIC_WRAP = "y";
MTK_EFUSE="y";
# MTK_HSDMA="y";
MTK_SCPSYS="y";
MTK_SCPSYS_PM_DOMAINS="y";
# MTK_THERMAL="y";
MTK_TIMER="y";
COMMON_CLK_MT7622 = "y";
COMMON_CLK_MT7622_ETHSYS = "y";
COMMON_CLK_MT7622_HIFSYS = "y";
COMMON_CLK_MT7622_AUDSYS = "y";
PM_CLK="y";
REGMAP_MMIO = "y";
CLKSRC_MMIO = "y";
REGMAP = "y";
MEDIATEK_GE_PHY = "y";
# MEDIATEK_MT6577_AUXADC = "y";
# MEDIATEK_WATCHDOG = "y";
NET_MEDIATEK_SOC = "y";
NET_MEDIATEK_SOC_WED = "y";
NET_MEDIATEK_STAR_EMAC = "y"; # this enables REGMAP_MMIO
NET_VENDOR_MEDIATEK = "y";
PCIE_MEDIATEK = "y";
BLOCK = "y"; # move this to base option
SPI_MASTER = "y";
SPI = "y";
SPI_MEM="y";
SPI_MTK_NOR="y";
SPI_MTK_SNFI = "y";
MTD = "y";
MTD_BLOCK = "y";
MTD_RAW_NAND = "y";
MTD_NAND_MTK = "y";
MTD_NAND_MTK_BMT = "y"; # Bad-block Management Table
MTD_NAND_ECC_MEDIATEK= "y";
MTD_NAND_ECC_SW_HAMMING= "y";
MTD_SPI_NAND= "y";
MTD_OF_PARTS = "y";
MTD_NAND_CORE= "y";
MTD_SPI_NOR= "y";
MTD_SPLIT_FIRMWARE= "y";
MTD_SPLIT_FIT_FW= "y";
MMC = "y";
MMC_BLOCK = "y";
MMC_CQHCI = "y";
MMC_MTK = "y";
# Distributed Switch Architecture is needed
# to make the ethernet ports visible
NET_DSA="y";
NET_DSA_MT7530="y";
NET_DSA_TAG_MTK="y";
PSTORE = "y";
PSTORE_RAM = "y";
PSTORE_CONSOLE = "y";
PSTORE_DEFLATE_COMPRESS = "n";
SERIAL_8250 = "y";
SERIAL_8250_CONSOLE = "y";
SERIAL_8250_MT6577="y";
# SERIAL_8250_NR_UARTS="3";
# SERIAL_8250_RUNTIME_UARTS="3";
SERIAL_OF_PLATFORM="y";
# Must enble hardware watchdog drivers. Else the device reboots after several seconds
WATCHDOG = "y";
MEDIATEK_WATCHDOG = "y";
};
};
boot = {
commandLine = [ "console=ttyS0,115200" ];
tftp.loadAddress = lim.parseInt "0x4007ff28";
imageFormat = "fit";
};
filesystem =
let inherit (pkgs.pseudofile) dir symlink;
in
dir {
lib = dir {
firmware = dir {
mediatek = symlink firmware;
};
};
};
hardware =
let
openwrt = pkgs.openwrt;
mac80211 = pkgs.mac80211.override {
drivers = [
"mt7615e"
"mt7915e"
];
klibBuild = config.system.outputs.kernel.modulesupport;
};
in {
ubi = {
minIOSize = "2048";
eraseBlockSize = "126976";
maxLEBcount = "1024"; # guessing
};
defaultOutput = "ubimage";
# the kernel expects this to be on a 2MB boundary. U-Boot
# (I don't know why) has a default of 0x41080000, which isn't.
# We put it at the 32MB mark so that tftpboot can put its rootfs
# image and DTB underneath, but maybe this is a terrible waste of
# RAM unless the kernel is able to reuse it later. Oh well
loadAddress = lim.parseInt "0x42000000";
entryPoint = lim.parseInt "0x42000000";
rootDevice = "ubi0:liminix";
dts = {
src = "${openwrt.src}/target/linux/mediatek/dts/mt7622-linksys-e8450-ubi.dts";
includes = [
"${openwrt.src}/target/linux/mediatek/dts"
"${config.system.outputs.kernel.modulesupport}/arch/arm64/boot/dts/mediatek/"
];
};
# - 0x000000000000-0x000008000000 : "spi-nand0"
# - 0x000000000000-0x000000080000 : "bl2"
# - 0x000000080000-0x0000001c0000 : "fip"
# - 0x0000001c0000-0x0000002c0000 : "factory"
# - 0x0000002c0000-0x000000300000 : "reserved"
# - 0x000000300000-0x000008000000 : "ubi"
networkInterfaces =
let
inherit (config.system.service.network) link;
inherit (config.system.service) bridge;
in rec {
wan = link.build { ifname = "wan"; };
lan1 = link.build { ifname = "lan1"; };
lan2 = link.build { ifname = "lan2"; };
lan3 = link.build { ifname = "lan3"; };
lan4 = link.build { ifname = "lan4"; };
lan = lan3;
wlan = link.build {
ifname = "wlan0";
dependencies = [ mac80211 ];
};
wlan5 = link.build {
ifname = "wlan1";
dependencies = [ mac80211 ];
};
};
};
};
};
}