WIFI wlan0 interface - no such a device

Embedded Linux Discussions
1

Hi Robert,

I have wifi problem with our new rev boards. Please take a look the following messages for me:
//===== sudo /opt/scripts/tools/version.sh
git:/opt/scripts/:[46d33928c4a396ef472829bcf22761546e550a6f]
eeprom:[A335BNLTBWA51900BBWG0001]
model:[TI_AM335x_BeagleBone_Black_Wireless]
dogtag:[BeagleBoard.org Debian Image 2019-07-07]
bootloader:[eMMC-(default)]:[/dev/mmcblk1]:[U-Boot 2019.04-00002-g31a8ae0206]:[location: dd MBR]
kernel:[4.19.50-ti-r20]
nodejs:[v10.15.2]
uboot_overlay_options:[enable_uboot_overlays=1]
uboot_overlay_options:[uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-19-TI-00A0.dtbo]
uboot_overlay_options:[enable_uboot_cape_universal=1]
pkg check: to individually upgrade run: [sudo apt install --only-upgrade ]
pkg:[bb-cape-overlays]:[4.4.20190610.0-0rcnee0~buster+20190610]
pkg:[bb-wl18xx-firmware]:[1.20190227.1-0rcnee0~buster+20190227]
pkg:[kmod]:[26-1]
pkg:[librobotcontrol]:[1.0.4-git20190227.1-0rcnee0~buster+20190327]
pkg:[firmware-ti-connectivity]:[20190114-1]
groups:[debian : debian adm kmem dialout cdrom floppy audio dip video plugdev users systemd-journal bluetooth netdev i2c cloud9ide gpio pwm eqep admin spi tisdk weston-launch xenomai]
cmdline:[console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 rng_core.default_quality=100 cape_universal=enable quiet]
dmesg | grep remote
[ 1.582094] remoteproc remoteproc0: wkup_m3 is available
[ 1.584109] remoteproc remoteproc1: 4a334000.pru is available
[ 1.584551] remoteproc remoteproc2: 4a338000.pru is available
[ 1.967108] remoteproc remoteproc0: powering up wkup_m3
[ 1.967232] remoteproc remoteproc0: Booting fw image am335x-pm-firmware.elf, size 217168
[ 1.970787] remoteproc remoteproc0: remote processor wkup_m3 is now up
dmesg | grep pru
[ 1.584109] remoteproc remoteproc1: 4a334000.pru is available
[ 1.584254] pru-rproc 4a334000.pru: PRU rproc node pru@4a334000 probed successfully
[ 1.584551] remoteproc remoteproc2: 4a338000.pru is available
[ 1.584647] pru-rproc 4a338000.pru: PRU rproc node pru@4a338000 probed successfully
dmesg | grep pinctrl-single
[ 1.139936] pinctrl-single 44e10800.pinmux: 142 pins, size 568
dmesg | grep gpio-of-helper
[ 1.152996] gpio-of-helper ocp:cape-universal: ready
lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
END

//=====sudo dmesg|egrep ‘wlan|iwl|firm’
[ 1.967232] remoteproc remoteproc0: Booting fw image am335x-pm-firmware.elf, size 217168
[ 1.979504] wlan-en-regulator: disabling

//======sudo ifconfig wlan0 up
wlan0: ERROR while getting interface flags: No such device

//=======sudo systemctl status networking.service
● networking.service - Raise network interfaces
Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Sun 2019-07-07 16:36:47 UTC; 25min ago
Docs: man:interfaces(5)
Process: 5160 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=1/FAILURE)
Main PID: 5160 (code=exited, status=1/FAILURE)

Jul 07 16:36:47 beaglebone dhclient[5189]: than a configuration issue please read the section on submitting
Jul 07 16:36:47 beaglebone dhclient[5189]: bugs on either our web page at www.isc.org or in the README file
Jul 07 16:36:47 beaglebone ifup[5160]: ifup: failed to bring up ppp0
Jul 07 16:36:47 beaglebone dhclient[5189]: before submitting a bug. These pages explain the proper
Jul 07 16:36:47 beaglebone dhclient[5189]: process and the information we find helpful for debugging.
Jul 07 16:36:47 beaglebone dhclient[5189]:
Jul 07 16:36:47 beaglebone dhclient[5189]: exiting.
Jul 07 16:36:47 beaglebone systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE
Jul 07 16:36:47 beaglebone systemd[1]: networking.service: Failed with result ‘exit-code’.
Jul 07 16:36:47 beaglebone systemd[1]: Failed to start Raise network interfaces.
debian@beaglebone:/etc/init.d$

//======sudo hcitool scan
Scanning …
A0:AF:BD:72:A6:A9 Alden
D0:7F:A0:18:58:B6 Galaxy J7 Refine

The Bluetooth works.

Thank you for your support,
David

2

Hi Robert,

Is it possible that the ifup command fails to bring up ppp0 interface, then dropped to bring up wlan0:

//===from sudo systemctl status networking.service
ifup: failed to bring up ppp0

Best Regards,
David

3

Hi Robert,

I commented out the following line in the interfaces file:
#auto ppp0
#allow-hotplug ppp0
#iface ppp0 inet dhcp

Now
sudo systemctl status networking.service
● networking.service - Raise network interfaces
Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)
Active: active (exited) since Sun 2019-07-07 17:41:02 UTC; 22min ago
Docs: man:interfaces(5)
Process: 8413 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=0/SUCCESS)
Main PID: 8413 (code=exited, status=0/SUCCESS)

Jul 07 17:41:02 beaglebone systemd[1]: Starting Raise network interfaces…
Jul 07 17:41:02 beaglebone systemd[1]: Started Raise network interfaces.

But it still has no wlan0.

Best Regards,

David

4

Hi @dzhou , what do you see thru dmesg/journalctl…

journalctl | grep wl

dmesg | grep wl

debian@bbbw-pwr13-ser21:~$ journalctl | grep wl
Feb 03 16:10:12 bbbw-pwr13-ser21 kernel: wlan-en-regulator: disabling
Feb 03 16:10:16 bbbw-pwr13-ser21 systemd[1]: Starting BB WL18xx wlan0 Service...
Feb 03 16:10:17 bbbw-pwr13-ser21 bb-wl18xx-wlan0[1347]: wlan_0_mac=[00:00:00:00:00:00], this forces internal wl18xx mac address...
Feb 03 16:10:19 bbbw-pwr13-ser21 bb-wl18xx-wlan0[1347]: /lib/firmware/ti-connectivity/wl1271-nvs.bin=[00:00:00:00:00:00]
Feb 03 16:10:19 bbbw-pwr13-ser21 connmand[1344]: lo {newlink} index 1 address 00:00:00:00:00:00 mtu 65536
Feb 03 16:10:19 bbbw-pwr13-ser21 connmand[1344]: lo {newlink} index 1 operstate 0 <UNKNOWN>
Feb 03 16:10:19 bbbw-pwr13-ser21 connmand[1344]: can0 {newlink} index 2 address 00:00:00:00:00:00 mtu 16
Feb 03 16:10:19 bbbw-pwr13-ser21 connmand[1344]: can0 {newlink} index 2 operstate 2 <DOWN>
Feb 03 16:10:19 bbbw-pwr13-ser21 connmand[1344]: can1 {newlink} index 3 address 00:00:00:00:00:00 mtu 16
Feb 03 16:10:19 bbbw-pwr13-ser21 connmand[1344]: can1 {newlink} index 3 operstate 2 <DOWN>
Feb 03 16:10:23 bbbw-pwr13-ser21 systemd[1]: bb-wl18xx-wlan0.service: Succeeded.
Feb 03 16:10:23 bbbw-pwr13-ser21 systemd[1]: Started BB WL18xx wlan0 Service.
Feb 03 16:10:25 bbbw-pwr13-ser21 connmand[1344]: usb0 {newlink} index 4 address 00:00:00:00:00:00 mtu 1500
Feb 03 16:10:25 bbbw-pwr13-ser21 connmand[1344]: usb0 {newlink} index 4 operstate 2 <DOWN>
Feb 03 16:10:25 bbbw-pwr13-ser21 connmand[1344]: usb0 {newlink} index 4 address EC:11:27:BF:87:60 mtu 1500
Feb 03 16:10:25 bbbw-pwr13-ser21 connmand[1344]: usb0 {newlink} index 4 operstate 2 <DOWN>
Feb 03 16:10:25 bbbw-pwr13-ser21 connmand[1344]: usb1 {newlink} index 5 address 00:00:00:00:00:00 mtu 1500
Feb 03 16:10:25 bbbw-pwr13-ser21 connmand[1344]: usb1 {newlink} index 5 operstate 2 <DOWN>
Feb 03 16:10:25 bbbw-pwr13-ser21 connmand[1344]: usb1 {newlink} index 5 address EC:11:27:BF:87:64 mtu 1500
Feb 03 16:10:25 bbbw-pwr13-ser21 connmand[1344]: usb1 {newlink} index 5 operstate 2 <DOWN>
Feb 03 16:10:25 bbbw-pwr13-ser21 connmand[1344]: usb0 {newlink} index 4 address EC:11:27:BF:87:60 mtu 1500
Feb 03 16:10:25 bbbw-pwr13-ser21 connmand[1344]: usb0 {newlink} index 4 operstate 2 <DOWN>
Feb 03 16:10:25 bbbw-pwr13-ser21 connmand[1344]: usb1 {newlink} index 5 address EC:11:27:BF:87:64 mtu 1500
Feb 03 16:10:25 bbbw-pwr13-ser21 connmand[1344]: usb1 {newlink} index 5 operstate 0 <UNKNOWN>
Feb 03 16:10:26 bbbw-pwr13-ser21 connmand[1344]: usb1 {newlink} index 5 address EC:11:27:BF:87:64 mtu 1500
Feb 03 16:10:26 bbbw-pwr13-ser21 connmand[1344]: usb1 {newlink} index 5 operstate 2 <DOWN>
Feb 03 16:11:10 bbbw-pwr13-ser21 bb-wl18xx-bluetooth[3153]: Found a Texas Instruments' chip!
Feb 03 16:11:10 bbbw-pwr13-ser21 bb-wl18xx-bluetooth[3153]: Firmware file : /lib/firmware/ti-connectivity/TIInit_11.8.32.bts
Feb 03 16:11:10 bbbw-pwr13-ser21 bb-wl18xx-bluetooth[3153]: Loaded BTS script version 1
Feb 03 16:11:10 bbbw-pwr13-ser21 bb-wl18xx-bluetooth[3153]: texas: changing baud rate to 3000000, flow control to 1
Feb 03 16:11:12 bbbw-pwr13-ser21 bb-wl18xx-bluetooth[3153]: Device setup complete
Feb 03 16:11:13 bbbw-pwr13-ser21 kernel: wlcore: wl18xx HW: 183x or 180x, PG 2.2 (ROM 0x11)
Feb 03 16:11:13 bbbw-pwr13-ser21 connmand[1344]: wlan0 {create} index 6 type 1 <ETHER>
Feb 03 16:11:13 bbbw-pwr13-ser21 connmand[1344]: wlan0 {update} flags 4098 <DOWN>
Feb 03 16:11:13 bbbw-pwr13-ser21 connmand[1344]: wlan0 {newlink} index 6 address 5C:31:3E:E2:24:6A mtu 1500
Feb 03 16:11:13 bbbw-pwr13-ser21 connmand[1344]: wlan0 {newlink} index 6 operstate 2 <DOWN>
Feb 03 16:11:13 bbbw-pwr13-ser21 kernel: wlcore: loaded
Feb 03 16:11:14 bbbw-pwr13-ser21 kernel: wlcore: PHY firmware version: Rev 8.2.0.0.242
Feb 03 16:11:14 bbbw-pwr13-ser21 kernel: wlcore: firmware booted (Rev 8.9.0.0.79)
Feb 03 16:11:14 bbbw-pwr13-ser21 kernel: IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Feb 03 16:11:14 bbbw-pwr13-ser21 connmand[1344]: Adding interface wlan0 [ wifi ]
Feb 03 16:11:14 bbbw-pwr13-ser21 connmand[1344]: wlan0 {update} flags 36931 <UP,RUNNING>
Feb 03 16:11:14 bbbw-pwr13-ser21 connmand[1344]: wlan0 {newlink} index 6 address 5C:31:3E:E2:24:6A mtu 1500
Feb 03 16:11:14 bbbw-pwr13-ser21 connmand[1344]: wlan0 {newlink} index 6 operstate 0 <UNKNOWN>
Feb 03 16:11:14 bbbw-pwr13-ser21 connmand[1344]: wlan0 {update} flags 36867 <UP>
Feb 03 16:11:14 bbbw-pwr13-ser21 connmand[1344]: wlan0 {newlink} index 6 address 5C:31:3E:E2:24:6A mtu 1500
Feb 03 16:11:14 bbbw-pwr13-ser21 connmand[1344]: wlan0 {newlink} index 6 operstate 2 <DOWN>
Feb 03 16:11:14 bbbw-pwr13-ser21 connmand[1344]: wlan0 {newlink} index 6 address 5C:31:3E:E2:24:6A mtu 1500
Feb 03 16:11:14 bbbw-pwr13-ser21 connmand[1344]: wlan0 {newlink} index 6 operstate 2 <DOWN>
Feb 03 16:11:15 bbbw-pwr13-ser21 wpa_supplicant[1348]: wlan0: SME: Trying to authenticate with b6:fb:e4:f4:7a:ad (SSID='XA10-WiFi-X1' freq=2412 MHz)
Feb 03 16:11:15 bbbw-pwr13-ser21 kernel: wlan0: authenticate with b6:fb:e4:f4:7a:ad
Feb 03 16:11:15 bbbw-pwr13-ser21 kernel: wlan0: send auth to b6:fb:e4:f4:7a:ad (try 1/3)
Feb 03 16:11:15 bbbw-pwr13-ser21 wpa_supplicant[1348]: wlan0: Trying to associate with b6:fb:e4:f4:7a:ad (SSID='XA10-WiFi-X1' freq=2412 MHz)
Feb 03 16:11:15 bbbw-pwr13-ser21 kernel: wlan0: authenticated
Feb 03 16:11:15 bbbw-pwr13-ser21 kernel: wlan0: associate with b6:fb:e4:f4:7a:ad (try 1/3)
Feb 03 16:11:15 bbbw-pwr13-ser21 kernel: wlan0: RX AssocResp from b6:fb:e4:f4:7a:ad (capab=0x431 status=0 aid=3)
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {RX} 1 packets 113 bytes
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {TX} 0 packets 0 bytes
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {update} flags 102403 <UP,LOWER_UP>
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {newlink} index 6 address 5C:31:3E:E2:24:6A mtu 1500
Feb 03 16:11:15 bbbw-pwr13-ser21 kernel: wlan0: associated
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {newlink} index 6 operstate 5 <DORMANT>
Feb 03 16:11:15 bbbw-pwr13-ser21 wpa_supplicant[1348]: wlan0: Associated with b6:fb:e4:f4:7a:ad
Feb 03 16:11:15 bbbw-pwr13-ser21 wpa_supplicant[1348]: wlan0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
Feb 03 16:11:15 bbbw-pwr13-ser21 wpa_supplicant[1348]: wlan0: WPA: Key negotiation completed with b6:fb:e4:f4:7a:ad [PTK=CCMP GTK=CCMP]
Feb 03 16:11:15 bbbw-pwr13-ser21 wpa_supplicant[1348]: wlan0: CTRL-EVENT-CONNECTED - Connection to b6:fb:e4:f4:7a:ad completed [id=0 id_str=]
Feb 03 16:11:15 bbbw-pwr13-ser21 kernel: IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {add} route fe80:: gw :: scope 0 <UNIVERSE>
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {RX} 2 packets 282 bytes
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {TX} 2 packets 288 bytes
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {update} flags 102467 <UP,RUNNING,LOWER_UP>
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {newlink} index 6 address 5C:31:3E:E2:24:6A mtu 1500
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {newlink} index 6 operstate 6 <UP>
Feb 03 16:11:15 bbbw-pwr13-ser21 kernel: wlcore: Association completed.
Feb 03 16:11:15 bbbw-pwr13-ser21 avahi-daemon[1346]: Joining mDNS multicast group on interface wlan0.IPv4 with address 192.168.3.33.
Feb 03 16:11:15 bbbw-pwr13-ser21 avahi-daemon[1346]: New relevant interface wlan0.IPv4 for mDNS.
Feb 03 16:11:15 bbbw-pwr13-ser21 avahi-daemon[1346]: Registering new address record for 192.168.3.33 on wlan0.IPv4.
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {add} address 192.168.3.33/22 label wlan0 family 2
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {add} route 192.168.0.0 gw 0.0.0.0 scope 253 <LINK>
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {add} route 192.168.1.1 gw 0.0.0.0 scope 253 <LINK>
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {add} route 8.8.8.8 gw 192.168.1.1 scope 0 <UNIVERSE>
Feb 03 16:11:15 bbbw-pwr13-ser21 connmand[1344]: wlan0 {add} route 0.0.0.0 gw 192.168.1.1 scope 0 <UNIVERSE>
Feb 03 16:12:03 bbbw-pwr13-ser21 connmand[1344]: wlan0 {add} route 212.227.81.55 gw 192.168.1.1 scope 0 <UNIVERSE>
Feb 03 16:12:04 bbbw-pwr13-ser21 connmand[1344]: wlan0 {del} route 212.227.81.55 gw 192.168.1.1 scope 0 <UNIVERSE>
Feb 03 16:12:04 bbbw-pwr13-ser21 avahi-daemon[1346]: Joining mDNS multicast group on interface wlan0.IPv6 with address fe80::5e31:3eff:fee2:246a.
Feb 03 16:12:04 bbbw-pwr13-ser21 avahi-daemon[1346]: New relevant interface wlan0.IPv6 for mDNS.
Feb 03 16:12:04 bbbw-pwr13-ser21 avahi-daemon[1346]: Registering new address record for fe80::5e31:3eff:fee2:246a on wlan0.*.
Feb 03 16:15:02 bbbw-pwr13-ser21 sudo[3235]:   debian : TTY=unknown ; PWD=/home/debian ; USER=root ; COMMAND=/sbin/dhclient wlan0
Feb 03 16:15:02 bbbw-pwr13-ser21 dhclient[3237]: DHCPREQUEST for 192.168.3.33 on wlan0 to 255.255.255.255 port 67

debian@bbbw-pwr13-ser21:~$ dmesg | grep wl
[    3.182319] wlan-en-regulator: disabling
[   92.634551] wlcore: wl18xx HW: 183x or 180x, PG 2.2 (ROM 0x11)
[   92.673128] wlcore: loaded
[   93.148677] wlcore: PHY firmware version: Rev 8.2.0.0.242
[   93.205808] wlcore: firmware booted (Rev 8.9.0.0.79)
[   93.225945] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   94.263774] wlan0: authenticate with b6:fb:e4:f4:7a:ad
[   94.279380] wlan0: send auth to b6:fb:e4:f4:7a:ad (try 1/3)
[   94.310526] wlan0: authenticated
[   94.318963] wlan0: associate with b6:fb:e4:f4:7a:ad (try 1/3)
[   94.335091] wlan0: RX AssocResp from b6:fb:e4:f4:7a:ad (capab=0x431 status=0 aid=3)
[   94.359716] wlan0: associated
[   94.528623] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   94.555457] wlcore: Association completed.
5

Hi Robert,

There are a lot of messages from the commands you posted. I guess I have auto-start of ppp0. It failed and tried several times. So there are a lot of messages with 'grep wl | grep wlan0 ’
I believe it is caused by ppp0 failure during initialization. Our board has a separate power enabling circuit for cellular module. I am going to disable that to bring wifi up first.

Best Regards,

David

6

Hi Robert,

I run your commands: journalctl | grep wl returns the same except:

I have the line ( between the line : lo and can0 { newlink } )
wl18xx:tether waiting for /sys/class/net/wlan0
Because of the above line, I didn’t have
bb-wl18xx-wlan0.service: Succeeded

The dmesg | grep wl only returns :
wlan-en-regulator: disabling

Thank you,
David

7

This means the kernel has not detected the wl18xx device on the sdio bus.

Regards,

8

Hi Robert,

Is possible no power to wifi? (Well, Bluetooth works, input power to the chip is there)
Or UART3 (the number may not be 3) as sdio bus problem?

Best Regards,
David

9

Hi Robert,

We follow your leads and found a missing resistant on one of the SDIO lines. Now, wifi works. Thank you for your help.

Best Regards,
David

10

awesome glad it works!!!