MT7925 error -12

Installing and Using OpenWrt
1

root@OpenWrt:~# dmesg | grep mt79
[ 10.418958] mt7925e 0000:01:00.0: enabling device (0000 -> 0002)
[ 10.447395] mt7925e 0000:01:00.0: ASIC revision: 79250000
[ 10.538220] mt7925e: probe of 0000:01:00.0 failed with error -12

i have installed the drivers

root@OpenWrt:~# ls -l /lib/firmware/mediatek/mt7925/
-rw-r--r-- 1 root root 212192 Apr 17 16:48 WIFI_MT7925_PATCH_MCU_1_1_hdr.bin
-rw-r--r-- 1 root root 1204648 Apr 17 16:44 WIFI_RAM_CODE_MT7925_1_1.bin

root@OpenWrt:~# lspci
0000:01:00.0 Network controller: MEDIATEK Corp. Device 7925 (rev 02)

is there any reason this isn't working?

2

Please connect to your OpenWrt device using ssh and copy the output of the following commands and post it here using the "Preformatted text </> " button:
grafik
Remember to redact passwords, MAC addresses and any public IP addresses you may have:

ubus call system board
lspci
cat /etc/config/wireless
3 
root@OpenWrt:~# ubus call system board
{
        "kernel": "6.6.86",
        "hostname": "OpenWrt",
        "system": "ARMv8 Processor rev 1",
        "model": "Raspberry Pi 5 Model B Rev 1.0",
        "board_name": "raspberrypi,5-model-b",
        "rootfs_type": "ext4",
        "release": {
                "distribution": "OpenWrt",
                "version": "24.10.1",
                "revision": "r28597-0425664679",
                "target": "bcm27xx/bcm2712",
                "description": "OpenWrt 24.10.1 r28597-0425664679",
                "builddate": "1744562312"
        }
}
root@OpenWrt:~# lspci
0000:00:00.0 PCI bridge: Broadcom Inc. and subsidiaries BCM2712 PCIe Bridge (rev 21)
0000:01:00.0 Network controller: MEDIATEK Corp. Device 7925 (rev 02)
0001:00:00.0 PCI bridge: Broadcom Inc. and subsidiaries BCM2712 PCIe Bridge (rev 21)
0001:01:00.0 Ethernet controller: Raspberry Pi Ltd RP1 PCIe 2.0 South Bridge
root@OpenWrt:~# cat /etc/config/wireless

You could say i am being adventurous, but i don't see why this wouldn't work.

4

Insufficient power, would be my guess.

5

well, Jeff Geerling made a video on pi-fi 7 and that seemed to work?

anyways i updated my config.txt to the follow and still happens

dtparam=pciex1

dtparam=pciex1_gen=3
dtparam=pciex1_force_power_on=1

dtoverlay=pciex1-5v
6

Insufficient address space?

7

makes sense, but any way to actually check if that's the issue?

8

Ertno 12 == ENOMEM
no idea how to check, bit if there is a dts parameter or overlay adding pci space try that, even if it fails maybe you get other error indication

9

I posted this same issue onto r/openwrt subreddit and someone else was having the same issue with the mt7925...so umm.

10

Add dtoverlay=pcie-32bit-dma-pi5 in /boot/config.txt

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