[Letux-kernel] error messages on pyra with usb otg port

Andreas Kemnade andreas at kemnade.info
Wed Dec 12 17:25:57 CET 2018


On Wed, 12 Dec 2018 09:05:00 +0100
"H. Nikolaus Schaller" <hns at goldelico.com> wrote:

> > Am 11.12.2018 um 21:58 schrieb Andreas Kemnade <andreas at kemnade.info>:
> > 
> > Hi,
> > 
> > I got these messages while playing around with the pyra otg port:
> > 
> > root at letux:~# rmmod dwc3_omap
> > [  130.870422] dwc3 4a030000.dwc3: otg: device->idle
> > [  130.883397] omap-dwc3 4a020000.omap_dwc3: Dropping the link to regulator.37
> > root at letux:~# modprobe dwc3_omap
> > [  135.180613] omap-dwc3 4a020000.omap_dwc3: Linked as a consumer to regulator.37
> > [  135.190475] dwc3 4a030000.dwc3: Failed to get clk 'ref': -2
> > [  135.199202] OF: graph: no port node found in /ocp/ocp2scp at 4a080000/usb2phy at 4a084000

Hmm, that message does not appear in your logs. So now the question is why.

> > [  135.208664] dwc3 4a030000.dwc3: otg: idle->device
> > [  135.214376] dwc3 4a030000.dwc3: changing max_speed on rev 5533202a
> > root at letux:~# [  135.238419] using random self ethernet address
> > 
> > 
> > Are these errors harmless?
> > dtb file is  
> > => echo ${fdtfile}  
> > omap5-letux-cortex15-v5.1+pyra-v5.1.dtb  
> 
And you tested with 
> I have this (with USB2 client cable plugged in):
> 
> Debian GNU/Linux 8 letux console
> 
> letux login: root
> Password:
> Last login: Wed Dec  5 15:29:34 UTC 2018 on console
> Linux letux 4.20.0-rc5-letux+ #2977 SMP PREEMPT Wed Dec 5 15:35:18 CET 2018 armv7l
> 
> The programs included with the Debian GNU/Linux system are free software;
> the exact distribution terms for each program are described in the
> individual files in /usr/share/doc/*/copyright.
> 
> Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
> permitted by applicable law.
> root at letux:~# [  114.264536] g_ether gadget: high-speed config #1: CDC Ethernet (ECM)
> [  114.569795] bq24296_usb_detect: r8=44 HOST PWRGOOD r9=00
> [  114.575493] bq24296: VBUS became available
> [  114.579993] bq24296_update_input_current_limit(6)
> [  115.610366] bq24296_usb_detect: r8=6c HOST FCHG INDPM PWRGOOD r9=00
> [  115.776979] IPv6: ADDRCONF(NETDEV_CHANGE): usb0: link becomes ready
> [  115.828770] NOHZ: local_softirq_pending 08
> [  116.220140] NOHZ: local_softirq_pending 08
> [  116.404215] NOHZ: local_softirq_pending 08
> [  116.611114] NOHZ: local_softirq_pending 08
> [  116.724917] NOHZ: local_softirq_pending 08
> [  116.828586] NOHZ: local_softirq_pending 08
> [  117.005108] NOHZ: local_softirq_pending 08
> [  117.048250] NOHZ: local_softirq_pending 08
> [  117.173749] NOHZ: local_softirq_pending 08
> [  117.341119] NOHZ: local_softirq_pending 08
> 
> root at letux:~# dmesg|fgrep dwc3
> [    7.973297] really_probe: driver omap-dwc3 for 4a020000.omap_dwc3 bus platform
> [    7.982948] omap-dwc3 4a020000.omap_dwc3: vbus init failed
> [    7.990611] really_probe: driver omap-dwc3 for 4a020000.omap_dwc3 bus platform failed (0)
> [    8.026499] really_probe: driver omap-dwc3 for 4a020000.omap_dwc3 bus platform
> [    8.047589] omap-dwc3 4a020000.omap_dwc3: Linked as a consumer to regulator.37
> [    8.058745] really_probe: driver omap-dwc3 for 4a020000.omap_dwc3 bus platform ok (1)
> [    9.683066] really_probe: driver dwc3 for 4a030000.dwc3 bus platform
> [    9.690483] dwc3 4a030000.dwc3: Failed to get clk 'ref': -2
> [    9.704619] dwc3 4a030000.dwc3: changing max_speed on rev 5533202a
> [    9.724105] really_probe: driver dwc3 for 4a030000.dwc3 bus platform ok (1)
> root at letux:~# rmmod dwc3_omap
> [  225.019446] dwc3 4a030000.dwc3: end transfer timed out on endpoints 0x2c [bitmap]
> [  225.032783] omap-dwc3 4a020000.omap_dwc3: Dropping the link to regulator.37
> root at letux:~# modprobe dwc3_omap
> [  234.851847] really_probe: driver omap-dwc3 for 4a020000.omap_dwc3 bus platform
> [  234.859915] omap-dwc3 4a020000.omap_dwc3: Linked as a consumer to regulator.37
> [  234.869166] really_probe: driver dwc3 for 4a030000.dwc3 bus platform
> [  234.876098] dwc3 4a030000.dwc3: Failed to get clk 'ref': -2
> [  234.882985] dwc3 4a030000.dwc3: changing max_speed on rev 5533202a
> [  234.890036] really_probe: driver dwc3 for 4a030000.dwc3 bus platform ok (1)
> [  234.898499] using random self ethernet address
> [  234.903162] using random host ethernet address
> [  234.908141] really_probe: driver omap-dwc3 for 4a020000.omap_dwc3 bus platform ok (1)
> [  234.908334] using host ethernet address: 32:70:05:18:ff:78
> [  234.908338] using self ethernet address: 46:10:3a:b3:af:d9
> [  234.925638] usb0: HOST MAC 32:70:05:18:ff:78
> root at letux:~# [  234.943451] usb0: MAC 46:10:3a:b3:af:d9
> [  234.947729] using random self ethernet address
> [  234.952420] using random host ethernet address
> [  234.957300] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008
> [  234.964257] g_ether gadget: g_ether ready
> [  235.270015] g_ether gadget: high-speed config #1: CDC Ethernet (ECM)
> 
> root at letux:~#
> root at letux:~# ping 8.8.8.8
> connect: Network is unreachable
> root at letux:~# ifdown usb0
> SIOCDELRT: No such process
> root at letux:~# ifdown usb0
> ifdown: interface usb0 not configured
> root at letux:~# ifup usb0
> [  325.399391] using random self ethernet address
> [  325.404257] using random host ethernet address
> [  325.408928] using host ethernet address: 32:70:05:18:ff:78
> [  325.408932] using self ethernet address: 46:10:3a:b3:af:d9
> [  325.417892] usb0: HOST MAC 32:70:05:18:ff:78
> [  325.433012] usb0: MAC 46:10:3a:b3:af:d9
> [  325.437555] using random self ethernet address
> [  325.442742] using random host ethernet address
> [  325.447458] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008
> [  325.454534] g_ether gadget: g_ether ready
> [  325.488924] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready
> [  325.776361] g_ether gadget: high-speed config #1: CDC Ethernet (ECM)
> root at letux:~# [  326.594435] IPv6: ADDRCONF(NETDEV_CHANGE): usb0: link becomes ready
> 
> root at letux:~# ping 8.8.8.8
> PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
> 64 bytes from 8.8.8.8: icmp_seq=1 ttl=121 time=22.4 ms
> 64 bytes from 8.8.8.8: icmp_seq=2 ttl=121 time=19.6 ms
> 64 bytes from 8.8.8.8: icmp_seq=3 ttl=121 time=19.9 ms
> ^C
> --- 8.8.8.8 ping statistics ---
> 3 packets transmitted, 3 received, 0% packet loss, time 322335ms
> rtt min/avg/max/mdev = 19.677/20.676/22.443/1.253 ms
> root at letux:~#
> 
> Unfortunately the OMAP5EVM isn't running stable any more so that
> I can't get it booted.
> 
> BR,
> Nikolaus
> 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 833 bytes
Desc: OpenPGP digital signature
URL: <http://lists.goldelico.com/pipermail/letux-kernel/attachments/20181212/2ba681b0/attachment.asc>


More information about the Letux-kernel mailing list