WiFi 5GHz AP creation frequency not enabled for region=GB

[zahir]

I'm facing an issue with creating a 5GHz Access Point (AP) in the GB region. I've been working on setting up a wireless network using NetworkManager, and while I can successfully create a 2.4GHz AP, I'm encountering difficulties with the 5GHz frequency. After running the

iw phy phy0 info 

command, I noticed that there is no support for 5GHz frequencies in the output for my region (GB). The AP creation process is failing due to this limitation.

Here are my test setup details:

• Operating System: Linux
• Kernel: 5.15
• Yocto version: Kirkstone
• Software: networkmanager

• iw reg set GB
• Then iw phy phy0 info result is given here. Frequencies:

                        * 5180 MHz [36] (23.0 dBm) (no IR)
                        * 5200 MHz [40] (23.0 dBm) (no IR)
                        * 5220 MHz [44] (23.0 dBm) (no IR)
                        * 5240 MHz [48] (23.0 dBm) (no IR)
                        * 5260 MHz [52] (20.0 dBm) (no IR, radar detection)
                        * 5280 MHz [56] (20.0 dBm) (no IR, radar detection)
                        * 5300 MHz [60] (20.0 dBm) (no IR, radar detection)
                        * 5320 MHz [64] (20.0 dBm) (no IR, radar detection)
                        * 5500 MHz [100] (26.0 dBm) (radar detection)
                        * 5520 MHz [104] (26.0 dBm) (radar detection)
                        * 5540 MHz [108] (26.0 dBm) (radar detection)
                        * 5560 MHz [112] (26.0 dBm) (radar detection)
                        * 5580 MHz [116] (26.0 dBm) (radar detection)
                        * 5600 MHz [120] (26.0 dBm) (radar detection)
                        * 5620 MHz [124] (26.0 dBm) (radar detection)
                        * 5640 MHz [128] (26.0 dBm) (radar detection)
                        * 5660 MHz [132] (26.0 dBm) (radar detection)
                        * 5680 MHz [136] (26.0 dBm) (radar detection)
                        * 5700 MHz [140] (26.0 dBm) (radar detection)
                        * 5720 MHz [144] (26.0 dBm) (radar detection)
                        * 5745 MHz [149] (23.0 dBm) (no IR)
                        * 5765 MHz [153] (23.0 dBm) (no IR)
                        * 5785 MHz [157] (23.0 dBm) (no IR)
                        * 5805 MHz [161] (23.0 dBm) (no IR)
                        * 5825 MHz [165] (23.0 dBm) (no IR)
                        * 5845 MHz [169] (disabled)
                        * 5865 MHz [173] (disabled)

For other countries' 5GHz AP frequencies are listed, but for GB (United Kingdom) no supporting frequencies are found. I've looked into similar threads, like the one here, where users faced related issues, but their solutions didn't apply to my case.

• Is there a way to enable 5GHz frequencies for the GB region?
• Are there any recommended patches or updates for the iw code that could help address this issue? I would greatly appreciate any insights or suggestions to resolve this problem and successfully create a 5GHz AP in the GB region.

Thank you in advance for your assistance!

[zahir]

Hi,

Any update on this?

[nxf77486]

Hello,

Thank you in advance for contacting NXP support.

Can you please help me with the following information in order to have a better understanding of you case:

1. What is the module and module maker being used?(Wi-Fi).
2. I understand you are currently using Linux, what is the host being used (i.MX)?

Please help me with the following information.

[zahir]

@nxf77486 Please find some details,

1. IMX_BOOT_SOC_TARGET = "iMX8MP"
2. PREFERRED_VERSION_firmware-imx-8m = "8.14%"
3. # ethtool -i wlan0
   driver: ar6k_wlan
   version: 5.15.71-lts-next+g
4. working 2.4 GHz AP in reg=GB
   • ~# iw wlan0 info
     Interface wlan0
     ifindex 7
     wdev 0x1
     addr <xx.xx.xx.xx>
     ssid test
     type AP
     wiphy 0
5. ~# dmesg | grep wlan
   [ 13.001504] wlan: loading out-of-tree module taints kernel.
   [ 13.064446] wlan: loading driver v4.5.25.46
   [ 13.610831] __ol_transfer_bin_file: Failed to get bdwlan30_c6.b00:-2
   [ 13.617480] __ol_transfer_bin_file: Trying to load default bdwlan30_c6.bin
   [ 14.478488] R0: wlan: [260:E :SAP] dfs_init_radar_filters[217]: Unknown dfs domain 0
   [ 14.625869] wlan: driver loaded in 1556000
   [ 173.433762] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
6. ~# lsmod | grep wlan
   wlan 5713920 0
   cfg80211 389120 1 wlan
7. ~# iw reg get
   global
   country GB: DFS-ETS ...............
8. NO 5GHz frequencies for GB, But all other countries have 5GHz frequencies
9. No specific patches we have added causing this issue

Please ask if you need any other details