Hi,

I have question about changing NVRAM file to make my changes permanent. (survive reboot)
wl tool change country but after reboot country is set to default (US) again
Is a good approach to change NVRAM file (ccode)?

Thanks, Lazar

Hi,

I am suing CYW43455 chip and wl unitlity to force chip to use 2.4GHz or 5GHz on swithc between both.

I am using wl band a, wl band b or wl band auto to perform the switch. However it looks like that these changes are causing:

[ 4461.217741] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[ 4461.228950] pgd = 839ba3a3
[ 4461.233452] [00000000] *pgd=00000000
[ 4461.237061] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[ 4461.242373] Modules linked in: caam_jr caamkeyblob_desc caamhash_desc caamalg_desc crypto_engine rng_core authenc libdes sha256_generic libsha256 evbug brcmfmac(O) brcmutil(O) cfg80211(O) compat(O) caam error
[ 4461.260997] CPU: 0 PID: 28408 Comm: kworker/0:3 Tainted: G           O      5.10.52-0.0.004-lts-5.10.y+ #1
[ 4461.270642] Hardware name: Freescale i.MX7ULP (Device Tree)
[ 4461.276366] Workqueue: events brcmf_fweh_event_worker [brcmfmac]
[ 4461.282516] PC is at cfg80211_get_bss_channel+0xc/0x108 [cfg80211]
[ 4461.288774] LR is at cfg80211_inform_single_bss_data+0x84/0x324 [cfg80211]
[ 4461.295648] pc : [<7f0239d8>]    lr : [<7f025704>]    psr: 800f0013
[ 4461.301914] sp : 85483c88  ip : 85483d38  fp : 8564008c
[ 4461.307139] r10: 000000e3  r9 : 00000000  r8 : 85640014
[ 4461.312357] r7 : 00000000  r6 : 85483df8  r5 : 855241a0  r4 : 00000000
[ 4461.318884] r3 : 00000000  r2 : 000000e3  r1 : 8564008c  r0 : 855241a0
[ 4461.325411] Flags: Nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[ 4461.332543] Control: 10c5387d  Table: 65b0806a  DAC: 00000051
[ 4461.338293] Process kworker/0:3 (pid: 28408, stack limit = 0x4c154b96)
[ 4461.344814] Stack: (0x85483c88 to 0x85484000)
[ 4461.349182] 3c80:                   85483df8 855241a0 85483df8 00000000 85640014 7f025704
[ 4461.357363] 3ca0: 00000000 85482000 00000511 00000064 00000000 00000000 00000000 00000000
[ 4461.365544] 3cc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 4461.373725] 3ce0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 4461.381906] 3d00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 4461.390079] 3d20: 00000000 00000000 00000000 00000000 00000000 00000000 84bfe000 81104f88
[ 4461.398262] 3d40: 00000004 00000000 00000000 85483df8 00000000 85640014 00000064 8564008c
[ 4461.406443] 3d60: 00000cc0 7f026104 00000000 00000000 00000511 00000064 8564008c 000000e3
[ 4461.414625] 3d80: 00000000 00000cc0 00015ab9 855241a0 895e8e6e 0000040e 8b936dfd 81104f88
[ 4461.422805] 3da0: 00000000 00000000 00000000 855241a0 00000511 00000064 000000e3 00306c77
[ 4461.430987] 3dc0: 00000000 7f1a771c 00000000 00000000 00000511 00000064 8564008c 000000e3
[ 4461.439168] 3de0: 00000cc0 80170c6c 84191900 d744fcc9 00000000 0afa0ab9 00000000 00000000
[ 4461.447349] 3e00: ffffeb4c 00000000 41e83ce0 00000769 00000000 00000000 00000000 00000000
[ 4461.455531] 3e20: 00000000 00000000 0afab935 81104f88 0000040e 8564000c 00000001 85442000
[ 4461.463712] 3e40: 85640000 00000000 85524e1c 7f1a79ec 8c1e4700 85442000 85440540 85524ce0
[ 4461.471893] 3e60: 00000000 7f1ac9dc 00000000 80ba0cc0 8548b5a0 85482000 85483f44 80164160
[ 4461.480075] 3e80: 00000000 84a9ba90 00000000 81104f88 bf57fac0 81104f88 8548b200 8c1e4700
[ 4461.488256] 3ea0: 85526e1c 85526e2c 8c1e4748 85524ce0 85524e1c 00306c77 00000000 7f1b621c
[ 4461.496438] 3ec0: 8c1e4748 85482000 85526e30 7f1da7a0 00000000 00000002 00000045 00000000
[ 4461.504618] 3ee0: 00000000 00000000 0000000c 00000000 6c770000 00000030 00000000 00000000
[ 4461.512800] 3f00: 00000000 81104f88 bf582100 85526e1c 85de7e00 bf57f000 bf582100 00000000
[ 4461.520982] 3f20: 00000000 00000000 bf57f000 80149408 bf57f018 81103d00 85de7e00 bf57f000
[ 4461.529163] 3f40: 85de7e14 bf57f018 81103d00 00000008 85482000 801496c4 812526e4 81250553
[ 4461.537345] 3f60: 85483f74 85fac540 00000000 85482000 85fac600 80149668 85de7e00 8c52dec4
[ 4461.545526] 3f80: 85fac564 8014f72c 00000000 85fac600 8014f5ac 00000000 00000000 00000000
[ 4461.553706] 3fa0: 00000000 00000000 00000000 80100148 00000000 00000000 00000000 00000000
[ 4461.561887] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 4461.570060] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[ 4461.578342] [<7f0239d8>] (cfg80211_get_bss_channel [cfg80211]) from [<85482000>] (0x85482000)
[ 4461.586866] Code: e7f001f2 e92d41f0 e1a04003 e1a05000 (e5937000) 
[ 4461.637351] ---[ end trace 4f9bd10a309e78d8 ]---
[ 4461.643270] Kernel panic - not syncing: Fatal exception
[ 4461.648532] Rebooting in 5 seconds..

We are using meta-murata-wireless layer commit f8724cf98c2d07881c9abb9dac01c0f65d3758d0 (HEAD, tag: imx-hardknott-drogon_r1.0, origin/imx-hardknott-drogon).

What is the right way to use wl band ? Is there known issue with this command. What is the exact call sequence to use this command ?

Thanks,

Bogdan

Hi ,

We are using CYW43455 chip so it switches from Fast Power Save to Power Save mode and vice-versa (wl PM 2 <-> wl PM 1).
The device we are working on is battery powered so we are trying to reduce power consumption as much as we can.

However, although we are not seeing any obvious network traffic problem, our log is full of following messages:

brcmfmac: brcmf_sdio_bus_sleep: error while changing bus sleep state -110
brcmfmac: brcmf_sdio_bus_sleep: error while changing bus sleep state -110
brcmfmac: brcmf_sdio_txfail: sdio error, abort command and terminate frame
brcmfmac: brcmf_sdio_bus_sleep: error while changing bus sleep state -110
brcmfmac: brcmf_sdio_bus_sleep: error while changing bus sleep state -110

We have also tried to reduce SDIO clock frequency  by using SDR50 mode instead of SDR104:

mmc1: new ultra high speed SDR50 SDIO card at address

Unfortunately the error  logs are still there.

We are using  Firmware: BCM4345/6 wl0: Apr 15 2021 03:03:20 version 7.45.234 (4ca95bb CY) FWID 01-996384e2.

We are also using https://github.com/murata-wireless/meta-murata-wireless , hash f8724cf98c2d07881c9abb9dac01c0f65d3758d0.

Anyone know what might cause the issue ?

Best regards,

Bogdan

Hi ,

We meet a roaming issue: wifi disconnection happens very often.
Issue happen rate: around once per 2 hour

AP: Aruba

STA : CYW43455+RK3326

OS: Android 8

Wifi Driver: DHD

wl ver
1.363 RC125.15
wl0: Sep 26 2020 15:23:44 version 7.45.173 (r707987 CY) FWID 01-668b6f11

I find a error: TFS subelement ID unknown (65) 

Is it a root cause for disconnect?

How could we fix it? or it just concerns router compatible.

Hello, im researching about nintendo switch wifi/bt issues , i have some info about cyw4356 chip used in console, but in other forums people says this chip must be programmed for working in console, how can i do that, i bought this chip many times but never works, only from donor boards. 

sorry for my english.

thanks 

1、目前cyw43012的低功耗保活是如何应用的如果主控不是psoc，是君正或者rk之类的arm平台  可以做远程唤醒吗。

2、cyw43012可以开放43012 rtos的部分开发吗，如下虚拟网卡或者sdio裸数据传输的应用是否支持。

谢谢