OpenWrt support for Asus RT-AX53U

Ricrdsson · 2022-08-23T16:28:04.106Z

thanks, tested. it works fine

now it would be great if someone could fix the led diodes

@drut
need to upload without saving settings

tlc718 · 2022-08-25T07:55:46.608Z

I have compiled the image with the proposed change in the partition structure.
Whatever method I am using to upgrade the firmware, the new partition layout is not commited.
The old partition structure always remains in place.

I even restored the Asus original fw by using the serial header, then installed the freshly compiled "openwrt-ramips-mt7621-asus_rt-ax53u-squashfs-factory.bin" image, but in the end I have the same old partition structure, with the "firmware2" partition taking up a lot of space.

Am I doing something wrong?
How can I trigger the deletion and recreation of the new partition structure during a firmware upgrade process?

I tried

sysupgrade -n
sysupgrade -n -p

    -n           do not save configuration over reflash
    -p           do not attempt to restore the partition table after flash.

Perhaps I need to "force" the recreation of the partition table by using a certain flag in the build process?

LE: I looked into the dtb file ./build_dir/target-mipsel_24kc_musl/linux-ramips_mt7621/image-mt7621_asus_rt-ax53u.dtb (which should be the result of the compilation of the dts source), and it seems that the last "firmware2" partition (labelled partition@35e0000) is still referenced:

image1918×834 52.2 KB

I will do a clean build from scratch, to see if the dts file is actually compiled or not.

thanks

Ricrdsson · 2022-08-25T10:31:09.181Z

yes, do the build again. you made a mistake somewhere.

tlc718 · 2022-08-25T12:37:20.989Z

As far as I understood, the dts files are compiled only as part of the kernel build process.
I checked and the dtb files (which are the generated by the compilation process, based on the dts sources) are not changed at the end of the build process.
I used the command make image PROFILE="asus_rt-ax53u"

Have you used other switches to force the compilation of the dts files?
Can you post the commands that you fired up?

many thanks

maurer · 2022-08-25T13:36:47.629Z

Usually a make dirclean is enough to remove any leftovers from a privious build but will also nuke .config so you need to restore or better recreateit via make menuconfig

tlc718 · 2022-08-25T19:38:03.772Z

Finally succeeded!
I was using only the Image builder (instructions here).
However, to succeed, one needs to follow these instructions.

Important note: if you are getting a compilation error when building the tools/tar target, please add this parameter to all make commands:
FORCE_UNSAFE_CONFIGURE=1

The new partition layout:

root@OpenWrt:~# cat /proc/mtd
dev:    size   erasesize  name
mtd0: 000e0000 00020000 "u-boot"
mtd1: 00100000 00020000 "u-boot-env"
mtd2: 00100000 00020000 "factory"
mtd3: 00100000 00020000 "factory2"
mtd4: 00400000 00020000 "kernel"
mtd5: 07820000 00020000 "ubi"

root@OpenWrt:~# df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/root                 3.8M      3.8M         0 100% /rom
tmpfs                   122.2M     88.0K    122.2M   0% /tmp
/dev/ubi0_1              99.6M     48.0K     94.8M   0% /overlay
overlayfs:/overlay       99.6M     48.0K     94.8M   0% /
tmpfs                   512.0K         0    512.0K   0% /dev

In order to trigger the partition resizing process, I had to add the -p switch to the sysupgrade command (otherwise the overlay partition size remained at 33 MB):

sysupgrade -p openwrt-ramips-mt7621-asus_rt-ax53u-squashfs-sysupgrade.bin

    -p           do not attempt to restore the partition table after flash.

@drut: the settings were preserved (or at least /etc/config/wireless). Not sure if the packages were also preserved, as I started the upgrade from a clean system (I had changed only the wireless settings).

tlc718 · 2022-08-25T20:15:49.998Z

It seems there's a problem with the dependency kernel when installing kernel modules:

root@OpenWrt:~# opkg install  kmod-mtd-rw
Unknown package 'kmod-mtd-rw'.
Collected errors:
 * pkg_hash_check_unresolved: cannot find dependency kernel (= 5.10.137-1-2aca9bf59174f294eb54655f86478a3f) for kmod-mtd-rw
 * pkg_hash_fetch_best_installation_candidate: Packages for kmod-mtd-rw found, but incompatible with the architectures configured
 * opkg_install_cmd: Cannot install package kmod-mtd-rw.

I think I might have forgotten to select the branch (git checkout v21.02.3 command).

Rebuilding from scratch...

jmigual · 2022-08-26T09:52:24.731Z

Hi I'm not sure if this is the right place but currently the wiki info page of the RT-AX53U does not have a link to this forum post in the Links section of the info table (https://openwrt.org/toh/asus/rt-ax53u#info) . I cannot add it since I don't have permissions. Does anyone have them?

Also maybe I could also update some information if I had access

maurer · 2022-08-26T10:24:09.882Z

You can request access here

cdumdum · 2022-08-26T11:39:13.307Z

is it possible to configure the switch device to make vlan by switch port ?

Edit : after information it is the DSA system and not swconfig so there is no luci interface and vlan make in network>interface>device of luci menu
question : what is lan4 ? there is only 3 lan port on the switch

vevere · 2022-08-28T16:46:43.216Z

Thanks too much guys.

I received today a RT-AX53U and it was running OpenWRT snapshot one hour later (the time to quickly test the original firmware)

All seems to work great until now (configuerd as an AP/Switch will all ifaces bridged on br-lan and no firewall)

Works like a charm for a snapshot build, 105MB/s download speed (lan to laptop) impressive for an open source driver !!!!!!

upload is not as good with some slow speed for few seconds (almost 0 b/s) but the average upload speed is around 60~70MB/s ... not too bad !

Just one comment, this router only has 1 WAN + 3 LAN ... and not 1 WAN + 4 LAN, even if the hw reports a 4 ports switch:

image869×88 3.81 KB

Thanks a lot for having added this new target
Vevere

cdumdum · 2022-08-28T22:53:22.848Z

ok, so i test the Wi-Fi with the usb dongle adapter wn-h6 from wifi nation,
in AX mode at 80 Mhz the bandwith is only average 250 Mbps in download and upload
in ethernet, speed is 900 Mbps download and 600 Mbps upload

Capture d’écran 2022-08-29 004536908×866 35.9 KB

Capture d’écran 2022-08-29 0049071434×841 87.6 KB

with the 160 Mhz it doesn't work, my dongle doesn't see the ssid.

Borromini · 2022-08-29T02:02:48.021Z

160 MHz probably won't work. The radio is an entry level 802.11ax radio, all things considered.

lukasz92 · 2022-08-29T07:21:37.552Z

MT7915D (DBDC) does not support 160Mhz.

c_dum · 2022-08-29T12:54:24.480Z

does it mean, in fact, despite the router support wi-fi ax , the bandwidth will be 250 Mbps maximum ?? Have someone got more than this speed in wi-fi ??

Borromini · 2022-08-29T13:13:03.891Z

I've seen iperf speeds close to 700 Mbps on 5 GHz my EAP615-Wall (which is two-stream MT7975D). (MT7915D and MT7975D seem to be belong to the same family, I cannot find the difference on Wikidevi.)

250 Mbps is something you should hit effortlessly with two-stream 802.11ac even in good circumstances.

Ricrdsson · 2022-08-29T13:22:17.474Z

do you have hardware flow offloading turned on? otherwise I also had a max of 250Mb

c_dum · 2022-08-29T14:21:50.679Z

@Borromini maybe MT7975D support 160 Mhz and MT7915D not

@Ricrdsson i have enable flow offloading

i'm very desapointed, i thought that with ghis router myspeed could be at least average 800 Mbps

Borromini · 2022-08-29T14:35:45.226Z

c_dum:

@Borromini maybe MT7975D support 160 Mhz and MT7915D not

No it doesn't, and I would have indicated so if I had it enabled (otherwise I would have sent you on a fool's errand). This is with 80 MHz and BSS colouring & he_su_beamformee set. Client is an Intel AX210.

marceli · 2022-08-29T14:43:35.897Z

I have this router since today. So far playing with stock fw. I have enabled ssh and added entware
But the speed is indeed far from good. On Ethernet 1G I'm getting 500-600 Mbits in iperf3. Over wifi only 250-300 Mbits.
Is there a way over CLI how to check if hw/sw offload is enabled ?