YAJIMA Hideyuki a7a715e11a ramips: add support for ASUS RT-AC85U
This patch adds support for the ASUS RT-AC85U wireless router.
It is a dual-band gigabit router based on the MediaTek MT7621AT SoC.

MAC Address Layout:
- LAN/WAN/2.4G/5G MAC addresses are derived from the
  factory partition at offset 0xe000.

Hardware Specifications:
- SoC: MediaTek MT7621AT (880 MHz, 2C/4T)
- RAM: 128 MB DDR3
- Flash: 128 MB Winbond W29N01HV NAND
- WI1: MediaTek MT7615E (2.4 GHz, 4x4)
- WI2: MediaTek MT7615E (5 GHz, 4x4)
- Switch: MediaTek MT7530 (Embedded Gigabit Switch)
- Ports: 1x WAN, 4x LAN (10/100/1000 Mbps), 1x USB 3.0
- LEDs: Power, LAN, WAN, 2.4G, 5G, USB, WPS
- Buttons: WPS, Reset

Installation / Flashing guide:
1. Power off the device.
2. Hold Reset button and power on to enter ASUS Restoration mode (slow flash LED).
3. Set your computer's static IP to 192.168.1.x (e.g., 192.168.1.10).
4. Upload the OpenWrt initramfs image via ASUS Restoration tool to 192.168.1.1.
5. Wait for the device to boot into the temporary OpenWrt environment.
6. Access LuCI (192.168.1.1) and flash sysupgrade image to make it permanent.

Signed-off-by: YAJIMA Hideyuki <ursmtr@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/23747
Signed-off-by: Robert Marko <robimarko@gmail.com>
2026-06-24 13:31:44 +02:00
2026-06-24 02:14:33 +02:00
2024-05-17 22:03:06 +03:00

OpenWrt logo

OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.

Sunshine!

Download

Built firmware images are available for many architectures and come with a package selection to be used as WiFi home router. To quickly find a factory image usable to migrate from a vendor stock firmware to OpenWrt, try the Firmware Selector.

If your device is supported, please follow the Info link to see install instructions or consult the support resources listed below.

An advanced user may require additional or specific package. (Toolchain, SDK, ...) For everything else than simple firmware download, try the wiki download page:

Development

To build your own firmware you need a GNU/Linux, BSD or macOS system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.

Requirements

You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.

binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.8+ rsync subversion unzip which

Quickstart

  1. Run ./scripts/feeds update -a to obtain all the latest package definitions defined in feeds.conf / feeds.conf.default

  2. Run ./scripts/feeds install -a to install symlinks for all obtained packages into package/feeds/

  3. Run make menuconfig to select your preferred configuration for the toolchain, target system & firmware packages.

  4. Run make to build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.

The main repository uses multiple sub-repositories to manage packages of different categories. All packages are installed via the OpenWrt package manager called opkg. If you're looking to develop the web interface or port packages to OpenWrt, please find the fitting repository below.

  • LuCI Web Interface: Modern and modular interface to control the device via a web browser.

  • OpenWrt Packages: Community repository of ported packages.

  • OpenWrt Routing: Packages specifically focused on (mesh) routing.

  • OpenWrt Video: Packages specifically focused on display servers and clients (Xorg and Wayland).

Support Information

For a list of supported devices see the OpenWrt Hardware Database

Documentation

Support Community

  • Forum: For usage, projects, discussions and hardware advise.
  • Support Chat: Channel #openwrt on oftc.net.

Developer Community

License

OpenWrt is licensed under GPL-2.0

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This repository is a mirror of https://git.openwrt.org/openwrt/openwrt.git It is for reference only and is not active for check-ins. We will continue to accept Pull Requests here. They will be merged via staging trees then into openwrt.git.
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