Wi-Fi Bluetooth for Linux Forum Discussions

Hello,
We have a custom hardware board based on STM32MP1 mpu along with cypress43455 and some other peripherals too.
For our use case, we are using yocto linux and uses openstlinux (arm-openstlinux_weston-linux-gnueabi-gcc), Kernel version 4.19.9 . We used to get the kernel oops message and the network crashes when I copy files bigger than 1MB from the target to host (https://community.infineon.com/t5/AIROC-Wi-Fi-MCUs/The-Network-Crashes-while-transferring-files-over-WiFi-Need-Backports-for-kernel/td-p/462819 ).

So we decided to use the latest backport drivers, and downloaded the latest cypress linux WiFi driver release [ cypress-fmac-v5.15.58-2023_0801 ] ( https://community.infineon.com/t5/Wi-Fi-Bluetooth-for-Linux/Cypress-Linux-WiFi-Driver-Release-FMAC-2023-08-01/td-p/459849 ).

We successfully compiled the drivers from the backport  as per the software user guide.

And for the firmware, since those were missing in the recent releases, used the cyfmac43455-sdio.bin and cyfmac43455-sdio.clm_blob files from 2022_0511 Release from https://github.com/Infineon/ifx-linux-firmware/tree/dc38e700612b334080e0b6df69070a88c4c2a12b/firmware . 

For the nvram file cyfmac43455-sdio.txt, we got it from murata ( https://github.com/murata-wireless/cyw-fmac-nvram/blob/master/cyfmac43455-sdio.1MW.txt )

We copied the new driver files and all the above mentioned files and booted the target board, but, the WiFi interface (wlan0) itself is missing.  There is no network.

ST OpenSTLinux - Weston - (A Yocto Project Based Distro) 2.6-snapshot stm32mp1-disco ttySTM0

stm32mp1-disco login: root (automatic login)

[ 36.655457] compat: loading out-of-tree module taints kernel.
[ 36.666561] Loading modules backported from Linux version v5.15.58-2023_0801-0-ge25eb9efc1df
[ 36.680880] Backport generated by backports.git v5.15.58-1-0-g42a95ce7
[ 37.067684] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 37.094404] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 37.100977] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[ 37.114617] cfg80211: failed to load regulatory.db
[ 37.400063] brcmfmac: brcmf_fw_alloc_request: using cypress/cyfmac43455-sdio for chip BCM4345/6
[ 37.411666] brcmfmac mmc0:0001:1: Direct firmware load for cypress/cyfmac43455-sdio.st,stm32mp157c-dk2-m4-examples.bin failed with error -2
[ 37.427945] usbcore: registered new interface driver brcmfmac
[ 37.470025] brcmfmac: brcmf_fw_request_firmware: no board-specific nvram available (ret=-2), device will use cypress/cyfmac43455-sdio.txt
[ 38.458260] brcmfmac: brcmf_fw_alloc_request: using cypress/cyfmac43455-sdio for chip BCM4345/6
[ 38.528267] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Apr 1 2022 00:35:06 version 7.45.249 (d826021 CY) FWID 01-b52c64b
root@stm32mp1-disco:~# [ 44.710596] brcmfmac: brcmf_sdio_bus_sleep: error while changing bus sleep state -110
[ 44.717266] brcmfmac: brcmf_sdio_txfail: sdio error, abort command and terminate frame
[ 44.728166] brcmfmac: brcmf_sdio_txfail: sdio error, abort command and terminate frame
[ 44.735201] brcmfmac: brcmf_sdio_txfail: sdio error, abort command and terminate frame
[ 44.743274] brcmfmac: brcmf_sdio_dpc: sdio ctrlframe tx failed err=-110
[ 44.749484] brcmfmac: brcmf_sdio_dpc: failed backplane access over SDIO, halting operation
[ 44.754113] ieee80211 phy0: brcmf_proto_bcdc_query_dcmd: brcmf_proto_bcdc_msg failed w/status -110
[ 44.767719] ieee80211 phy0: brcmf_cfg80211_get_channel: chanspec failed (-110)
[ 44.782741] brcmfmac: brcmf_sdio_bus_sleep: error while changing bus sleep state -110
[ 44.789495] brcmfmac: brcmf_sdio_txfail: sdio error, abort command and terminate frame
[ 52.193968] net_ratelimit: 84 callbacks suppressed
[ 52.193994] brcmfmac: brcmf_sdio_bus_sleep: error while changing bus sleep state -110
[ 52.205640] brcmfmac: brcmf_sdio_txfail: sdio error, abort command and terminate frame
[ 52.214098] brcmfmac: brcmf_sdio_txfail: sdio error, abort command and terminate frame
[ 52.221924] brcmfmac: brcmf_sdio_txfail: sdio error, abort command and terminate frame
[ 52.229885] brcmfmac: brcmf_sdio_dpc: sdio ctrlframe tx failed err=-110
[ 52.235925] brcmfmac: brcmf_sdio_dpc: failed backplane access over SDIO, halting operation
[ 52.237634] ieee80211 phy0: brcmf_proto_bcdc_query_dcmd: brcmf_proto_bcdc_msg failed w/status -110

We couldn't find what is wrong. We are stuck at this problem. Could you please help us

solve this problem ?

We would like to support WPA3 Enterprise and AES-192 modes by CYW4373 using murata Type 2BC.
Using bindings for Linux driver is as below for Infenion CYW4373.
https://github.com/STMicroelectronics/linux/blob/v6.1-stm32mp/Documentation/devicetree/bindings/net/wireless/brcm,bcm4329-fmac.yaml

Are all Enterprise security modes supported that are listed by wpa_supplicant here?
https://w1.fi/wpa_supplicant/

Hi:

I'm using CYW55573-SDIO/AW-XB583MA-SUR with brcmfmac 5.15.58-20230901 on Rock 5B. I cannot reload driver, showing brcmf_blhs_is_bootloader_ready: Timeout waiting for bootloader ready.

The only way to solve this is de-asserting WL_REG_ON and re-asserting it.

Full log & dts & nvram is on attachment.

Fw version: wl0: Jul 31 2023 23:59:17 version 18.53.212.15 (2203c7e) FWID 01-ca141bb2

These commands can reproduce this bug.

insmod brcmfmac.ko debug=0x00100007 ; sleep 1 ; rmmod brcmfmac ; sleep 1 ; insmod brcmfmac.ko debug=0x00100007 ; dmesg > log

Is there any solution to fix this, keeping WL_REG_ON always active?

I tried CYW43455-SDIO and this problem does not happen.

I bought some amount of CYW20719B1 (CYW20719B1KUMLG in specific) for some project I'm working on. I set them on a small board with a UART connection. I got them working with BtAttach and was able to communicate using standard Linux bluez. However, all of them have the same BT-Mac address of AA:AA:AA:AA:AA:AA. My question is what's the simplest way to flush a new address to the chip, as I have many boards to process. I read in this very forum something about .btp files, but either I don't understand something, or I don't have the .btp file for this chip. Where do I get the right .btp file if I really need one?

Thanks ahead,

Assaf

I have asked about CYW43353 bt host wake here:

https://community.infineon.com/t5/Wi-Fi-Bluetooth-for-Linux/CYW43353-BT-host-wake-on-LWB5/td-p/471652

The thread was then locked and the accepted answer points to tutorial for CY20xxx parts.

Forgive me asking,  but will this actually work with CYW43353 series as well ?

Is it true then that the commands for BT host wake are the same across the whole range of your BT ICs ?

Kind regards.