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AM3358: am3358

wu miller
Prodigy 70 points
Part Number: AM3358


HI:

Recently, I was testing WiFi, but found that 5G AP could not be generated,while 2.4G  AP work normal.

and then check the frequency by "iw reg get",It is found that 5g  AP cannot be used:

global
country 00: DFS-UNSET
(2402 - 2472 @ 40), (6, 20), (N/A)
(2457 - 2482 @ 20), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, PASSIVE-SCAN
(5170 - 5250 @ 80), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(5250 - 5330 @ 80), (6, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN
(5490 - 5730 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN
(5735 - 5835 @ 80), (6, 20), (N/A), PASSIVE-SCAN
(57240 - 63720 @ 2160), (N/A, 0), (N/A)

So I tried to set up CRDA by "iw reg set US",Unfortunately, this did not work.

Then I checked the corresponding firmware and found that they all exist

ls /lib/firmware/regulatory.db*
/lib/firmware/regulatory.db /lib/firmware/regulatory.db.p7s

But there are errors in the startup log:

dmesg | grep regulatory
[ 2.230878] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 2.249693] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[ 2.258518] cfg80211: failed to load regulatory.db

Could you give me some suggestions?

  • 0
    TI__Guru**** 174071 points

    Hi,

    Is this on your custom board or TI AM335x EVM?

  • 0 in reply to Bin Liu
    Prodigy 70 points

    Thank you for your reply. Customized board based on am335x EVM, using the latest SDK.

  • 0 in reply to wu miller
    TI__Guru**** 174071 points

    Hi Miller,

    What is the WIFI chip used on the board? The log seems telling its firmware loading failed.

  • 0 in reply to Bin Liu
    Prodigy 70 points

    Hi:

    NXP sd8997, WiFi 2.4G AP and sta are normal, but 5g AP is abnormal, indicating sdiouart8997_ combo_ V4.bin firmware can be loaded correctly

    [ 24.165443] fw_name=nxp/sdiouart8997_combo_v4.bin
    [ 24.190113] SDIO: max_segs=64 max_seg_size=65536
    [ 24.206835] rx_work=0 cpu_num=1
    [ 24.223402] Attach mlan adapter operations.card_type is 0x104.
    [ 24.257500] wlan: Enable TX SG mode
    [ 24.278493] wlan: Enable RX SG mode
    [ 24.336910] Request firmware: nxp/sdiouart8997_combo_v4.bin

    26.880118] WLAN FW is active

    [ 26.883372] on_time is 26883387169
    [ 26.970101] fw_cap_info=0x181c3fa3, dev_cap_mask=0xffffffff
    [ 26.975732] max_p2p_conn = 8, max_sta_conn = 8
    Starting Load/Save RF Kill Switch Status...
    [ OK ] Started Load/Save RF Kill Switch Status.
    [ 27.343520] wlan: version = SD8997----16.92.10.p219-MM5X16247.p5-GPL-(FP92)
    [ 27.430841] wlan: Driver loaded successfully

    But why can't we set CRDA parameters?

  • 0 in reply to wu miller
    TI__Guru**** 174071 points

    Hi Miller,

    None of the WIFI device and software is from TI, this is out of the support scope on this forums. I recommend to ask the chip vendor for help.

  • +1 in reply to Bin Liu
    Prodigy 70 points

    Hi:

    I have solved this problem, the CRDA code and regulatory.bin is not added to the default SDK. I need to modify the yocto configuration.Then the 5g AP works normally.