Re: [beagleboard] wifi works when BBGW first powered on, but not after a warm reboot

[Stephane Charette]

I installed build BBGW-blank-debian-8.6-seeed-iot-armhf-2016-09-18-4gb 
tonight. But I cannot get WIFI to work at all with this build.  I think the 
most recent changes have made things worse.

On both cold and warm boot, the serial console spits out the same message 
every few seconds:

wlcore: ERROR firmware boot failed despite 3 retries

/var/log/syslog has lots of repeating messages, such as:

Sep 18 18:47:24 beaglebone wifidog_server[3940]: [3][Sun Sep 18 18:47:24 
2016][3943](gateway.c:397) Could not create web server: Cannot assign 
requested address
Sep 18 18:47:24 beaglebone systemd[1]: wifidog-gateway.service: Main 
process exited, code=exited, status=1/FAILURE
Sep 18 18:47:24 beaglebone systemd[1]: wifidog-gateway.service: Unit 
entered failed state.
Sep 18 18:47:25 beaglebone systemd[1]: wifidog-gateway.service: Failed with 
result 'exit-code'.
Sep 18 18:47:28 beaglebone systemd[1]: wifidog-pre-startup.service: Service 
hold-off time over, scheduling restart.

This is the latest build freshly installed on the BBGW.  I've not run any 
commands yet except for "cat" and "ifconfig" to see what interfaces are 
available (lo and usb0).

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Re: [beagleboard] wifi works when BBGW first powered on, but not after a warm reboot

[Robert Nelson]

While we wait for the kernel to build and get pushed out via apt, you
can run this to update the *.dtb's..

debian@beaglebone:~$ git clone -b 4.4-ti
https://github.com/RobertCNelson/dtb-rebuilder
Cloning into 'dtb-rebuilder'...
remote: Counting objects: 7564, done.
remote: Compressing objects: 100% (16/16), done.
remote: Total 7564 (delta 4), reused 0 (delta 0), pack-reused 7547
Receiving objects: 100% (7564/7564), 5.12 MiB | 1.96 MiB/s, done.
Resolving deltas: 100% (3507/3507), done.
Checking connectivity... done.
debian@beaglebone:~$ cd dtb-rebuilder/
debian@beaglebone:~/dtb-rebuilder$ make ; sudo make install

and reboot..

Regards,

On Wed, Sep 14, 2016 at 4:29 PM, Robert Nelson  wrote:
> Switching to using gpio-hog vs the regulators seem to have helped..
>
> I'm about a dozen soft-reboot's into testing, so i pushed this
>
> debian@beaglebone:~$ dmesg | grep wl
> [   34.377974] wlcore: wl18xx HW: 183x or 180x, PG 2.2 (ROM 0x11)
> [   34.507372] wlcore: loaded
> [   34.909463] wlcore: PHY firmware version: Rev 8.2.0.0.236
> [   34.961172] wlcore: firmware booted (Rev 8.9.0.0.69)
> [   34.989579] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
> [   35.386337] wlcore: down
> [   36.388055] wlcore: down
> [   36.458640] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
> [   36.488482] device wlan0 entered promiscuous mode
> [   36.689006] tether: port 1(wlan0) entered forwarding state
> [   36.694649] tether: port 1(wlan0) entered forwarding state
>
> https://github.com/RobertCNelson/ti-linux-kernel-dev/commit/eeb801eadd3ce8e5c22b803727499807fcdd9a84
>
> i need to update the cm3-fw, then i'll tag this and push it out...
>
> Regards,
>
> --
> Robert Nelson
> https://rcn-ee.com/



-- 
Robert Nelson
https://rcn-ee.com/

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Re: [beagleboard] wifi works when BBGW first powered on, but not after a warm reboot

[Robert Nelson]

Switching to using gpio-hog vs the regulators seem to have helped..

I'm about a dozen soft-reboot's into testing, so i pushed this

debian@beaglebone:~$ dmesg | grep wl
[   34.377974] wlcore: wl18xx HW: 183x or 180x, PG 2.2 (ROM 0x11)
[   34.507372] wlcore: loaded
[   34.909463] wlcore: PHY firmware version: Rev 8.2.0.0.236
[   34.961172] wlcore: firmware booted (Rev 8.9.0.0.69)
[   34.989579] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   35.386337] wlcore: down
[   36.388055] wlcore: down
[   36.458640] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   36.488482] device wlan0 entered promiscuous mode
[   36.689006] tether: port 1(wlan0) entered forwarding state
[   36.694649] tether: port 1(wlan0) entered forwarding state

https://github.com/RobertCNelson/ti-linux-kernel-dev/commit/eeb801eadd3ce8e5c22b803727499807fcdd9a84

i need to update the cm3-fw, then i'll tag this and push it out...

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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Re: [beagleboard] wifi works when BBGW first powered on, but not after a warm reboot

[Mark Grosen]

Yes, I have this problem, too. I have not tried figuring out a SW solution.
I just power cycle on the thankfully few times I need to reboot.

Mark

On Wed, Sep 14, 2016, 11:34 AM Stephane Charette 
wrote:

> On Saturday, September 10, 2016 at 2:09:16 PM UTC-7, Stephane Charette
> wrote:
>>
>> On Friday, September 9, 2016 at 1:15:42 PM UTC-7, RobertCNelson wrote:
>>>
>>> On Fri, Sep 9, 2016 at 2:45 PM, Stephane Charette
>>>  wrote:
>>> > When I first plug power into my BBGW, everything works great.  But if
>>> I
>>> > issue a "reboot" or "shutdown -r now" command, when the device boots
>>> back up
>>> > I have no wifi.
>>> >
>>> > Anyone else having problems with wifi not working when doing a "warm"
>>> > reboot?  Is this a known problem, or is there a known workaround?
>>>
>>> I still don't think we are properly resetting the wl18xx on startup.
>>> (in u-boot is the easiest place)
>>>
>>
>
> I tried on TI's forums to get help for this issue, but their only response
> is to contact the BBGW community here or on IRC since I'm using one of
> RCN's builds.
>
>
>1. Is anyone else seeing this problem where WIFI on BBGW doesn't work
>on warm reboots?
>2. Can someone point me to where the source/scripts are located for
>Das U-Boot used on recent BBGW builds?  Is there something like a github
>project from which the BBGW builds are generated?
>
>
> Thanks,
>
> Stéphane
>
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> .
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Re: [beagleboard] wifi works when BBGW first powered on, but not after a warm reboot

[Stephane Charette]

On Saturday, September 10, 2016 at 2:09:16 PM UTC-7, Stephane Charette 
wrote:
>
> On Friday, September 9, 2016 at 1:15:42 PM UTC-7, RobertCNelson wrote:
>>
>> On Fri, Sep 9, 2016 at 2:45 PM, Stephane Charette 
>>  wrote: 
>> > When I first plug power into my BBGW, everything works great.  But if I 
>> > issue a "reboot" or "shutdown -r now" command, when the device boots 
>> back up 
>> > I have no wifi. 
>> > 
>> > Anyone else having problems with wifi not working when doing a "warm" 
>> > reboot?  Is this a known problem, or is there a known workaround? 
>>
>> I still don't think we are properly resetting the wl18xx on startup. 
>> (in u-boot is the easiest place) 
>>
>

I tried on TI's forums to get help for this issue, but their only response 
is to contact the BBGW community here or on IRC since I'm using one of 
RCN's builds.


   1. Is anyone else seeing this problem where WIFI on BBGW doesn't work on 
   warm reboots?
   2. Can someone point me to where the source/scripts are located for Das 
   U-Boot used on recent BBGW builds?  Is there something like a github 
   project from which the BBGW builds are generated?


Thanks,

Stéphane

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Re: [beagleboard] wifi works when BBGW first powered on, but not after a warm reboot

[Stephane Charette]

On Friday, September 9, 2016 at 1:15:42 PM UTC-7, RobertCNelson wrote:
>
> On Fri, Sep 9, 2016 at 2:45 PM, Stephane Charette 
>  wrote: 
> > When I first plug power into my BBGW, everything works great.  But if I 
> > issue a "reboot" or "shutdown -r now" command, when the device boots 
> back up 
> > I have no wifi. 
> > 
> > Anyone else having problems with wifi not working when doing a "warm" 
> > reboot?  Is this a known problem, or is there a known workaround? 
>
> I still don't think we are properly resetting the wl18xx on startup. 
> (in u-boot is the easiest place) 
>


How can I help?  Are there BB specific files, scripts, or a fork of U-Boot 
that is used on the BB?  Can you point me in the right direction so I can 
start poking?

And perhaps more importantly for me before I go further, do other people 
see this same problem, or is it just my BBGW which is messed up?  I only 
have 1 BBGW to test with, so i don't know if this is a common issue.

Stéphane

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[beagleboard] wifi works when BBGW first powered on, but not after a warm reboot

[Stephane Charette]

When I first plug power into my BBGW, everything works great.  But if I 
issue a "reboot" or "shutdown -r now" command, when the device boots back 
up I have no wifi.

*Anyone else having problems with wifi not working when doing a "warm" 
reboot?  Is this a known problem, or is there a known workaround?*

I've diff'd the output of the serial console when it works and when it 
doesn't, and I only see 1 line difference at the very start of the boot 
process.

When it works:

DRAM:  512 MiB
Reset Source: Power-on reset has occurred.
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1

When it doesn't work:

DRAM:  512 MiB
Reset Source: Global warm SW reset has occurred.
Reset Source: Power-on reset has occurred.
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1

When it doesn't work, I get this message logged in dmesg every few seconds 
after the boot has finished:

[  612.676285] wlcore: ERROR firmware boot failed despite 3 retries
[  620.458410] wlcore: ERROR timeout waiting for the hardware to complete 
initialization
[  622.558761] wlcore: ERROR timeout waiting for the hardware to complete 
initialization
[  624.634344] wlcore: ERROR timeout waiting for the hardware to complete 
initialization

The only other thing I've noticed is a 20-line error message and backtrace 
logged to /var/log/messages.  That start of which looks like this:

May 21 15:34:57 beaglebone kernel: [   31.978453] wlcore: wl18xx HW: 183x 
or 180x, PG 2.2 (ROM 0x11)
May 21 15:34:57 beaglebone kernel: [   32.067899] wlcore: loaded
May 21 15:34:57 beaglebone kernel: [   32.454957] wlcore: PHY firmware 
version: Rev 8.2.0.0.236
May 21 15:34:57 beaglebone kernel: [   32.494528] wlcore: firmware booted 
(Rev 8.9.0.0.69)
May 21 15:34:57 beaglebone kernel: [   32.511704] IPv6: 
ADDRCONF(NETDEV_UP): wlan0: link is not ready
May 21 15:34:57 beaglebone kernel: [   32.857933] [ cut here 
]
May 21 15:34:57 beaglebone kernel: [   32.858199] WARNING: CPU: 0 PID: 1781 
at drivers/net/wireless/ti/wlcore/main.c:797 
wl12xx_queue_recovery_work.part.8+0x46/0x48 [wlcore]()
May 21 15:34:57 beaglebone kernel: [   32.858207] Modules linked in: arc4 
wl18xx wlcore mac80211 snd_soc_evm snd_soc_wilink8_bt omap_aes_driver 
omap_sham omap_rng rng_core snd_soc_davinci_mcasp snd_soc_edma snd_soc_omap 
wlcore_sdio snd_soc_core snd_pcm_dmaengine snd_pcm snd_timer snd soundcore 
evdev uio_pdrv_genirq uio usb_f_acm u_serial usb_f_rndis g_multi 
usb_f_mass_storage u_ether libcomposite cfg80211 rfkill
May 21 15:34:57 beaglebone kernel: [   32.858314] CPU: 0 PID: 1781 Comm: 
irq/54-wl18xx Not tainted 4.4.19-ti-r41 #1
May 21 15:34:57 beaglebone kernel: [   32.858321] Hardware name: Generic 
AM33XX (Flattened Device Tree)

I'm using this build: 
 
https://rcn-ee.com/rootfs/bb.org/testing/2016-09-04/seeed-iot/BBGW-blank-debian-8.5-seeed-iot-armhf-2016-09-04-4gb.img.xz

TIA.

Stéphane

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