[Testing Required] ASUS RT-AC65U support (ramips/mt7621) - Seeking testers

Hi everyone,

I am currently working on mainlining support for the ASUS RT-AC85U, and the Pull Request has been undergoing testing for about 3 weeks now. Since the RT-AC65U shares a very similar hardware architecture, I have ported the framework and created a dedicated branch for it.

However, I do not own the RT-AC65U hardware myself, so I am looking for testers who can flash this experimental build and provide feedback.

Source Code & Branch

The code is pushed to my repository, separated cleanly into 3 commits (DTS, build target, and platform support):

Pre-built Firmware for Light Testers

For those who want to test without setting up a build environment, I have uploaded the master-based binaries (factory/sysupgrade) here:

Hardware Specifications (Based on RT-AC85U)

Note: These specs are from the RT-AC85U. The RT-AC65U is expected to be almost identical, but some minor components (like flash/RAM size or LED GPIOs) might differ. Please use with caution.

  • SoC: MediaTek MT7621AT (880 MHz, 2C/4T)
  • RAM: 128 MB DDR3 (Please verify on 65U)
  • Flash: 128 MB Winbond NAND (Please verify on 65U)
  • Wi-Fi: MediaTek MT7615E (2.4GHz/5GHz 4x4)
  • Switch: MediaTek MT7530 (Embedded Gigabit Switch)

Installation / Flashing Guide

  1. Power off the device.
  2. Hold the Reset button and power on to enter ASUS Restoration mode (LED should flash slowly).
  3. Set your computer's static IP to 192.168.1.10.
  4. Upload the OpenWrt initramfs/factory image via the ASUS Restoration tool to 192.168.1.1.
  5. If it boots successfully, access LuCI (192.168.1.1) and flash the sysupgrade image to make it permanent.

What to Feedback

Since I cannot test the physical device, I would deeply appreciate any reports on:

  1. Boot cycle validation (Please share serial console logs or dmesg if possible)
  2. LAN/WAN ports functionality
  3. LED mapping correctness

Thank you for your support and happy hacking!