Nikolaus, On 05/12/18 18:34, H. Nikolaus Schaller wrote: > Hi Roger, > >> Am 05.12.2018 um 16:27 schrieb Roger Quadros <rogerq@xxxxxx>: >> >> Nikolaus, >> >> On 05/12/18 17:21, H. Nikolaus Schaller wrote: >>> Hi Roger, >>> >>>> Am 30.11.2018 um 15:36 schrieb Roger Quadros <rogerq@xxxxxx>: >>>> >>>> On 30/11/18 15:38, H. Nikolaus Schaller wrote: >>>>> Hi Roger, >>>>> >>>>>> Am 30.11.2018 um 13:40 schrieb Roger Quadros <rogerq@xxxxxx>: >>>>>> >>>>>> Nikolaus, >>>>>> >>>>>> On 29/11/18 12:00, H. Nikolaus Schaller wrote: >>>>>>> Hi, >>>>>>> I finally got some USB3 OTG cable (said to be compatible with Samsung Galaxy Note 3). >>>>>>> Unfortunately devices do not enumerate (don't show up in lsusb -t) and don't even >>>>>>> fall back to USB2 speed. >>>>>>> If I use a pure USB2 OTG cable all devices work in USB2 mode. >>>>>>> >>>>>>> This is all the same on OMAP5EVM and Pyra. >>>>>>> >>>>>>> Is this known or does USB3-OTG work for someone? >>>>>> >>>>>> I can give it a try. Do you have any patches to enable the VBUS regulator on omap5-uevm? >>>>> >>>>> I think everything is already upstream and I have not used a special patch for it. >>>>> See extcon_usb3 and &usb in omap5-board-common.dtsi. This seems to connect the ID pin to the smps10. >>>>> >>>>> The dwc3 role patch is also upstream >>>>> >>>>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v4.20-rc4&id=656c1a65ab555ee5c7cd0d6aee8ab82ca3c1795f >>>>> >>>>> so that it should work out of the box for USB2 (or 3) with mainline kernel >>>>> Unless I did miss something important I am not aware of. >>>> >>>> I think I found the problem. >>>> >>>> Can you please try with the below patch? Super-speed host works for me [1]. >>>> >>>> diff --git a/arch/arm/boot/dts/omap5-board-common.dtsi b/arch/arm/boot/dts/omap5-board-common.dtsi >>>> index bf7ca00..bc853eb 100644 >>>> --- a/arch/arm/boot/dts/omap5-board-common.dtsi >>>> +++ b/arch/arm/boot/dts/omap5-board-common.dtsi >>>> @@ -701,6 +701,7 @@ >>>> }; >>>> >>>> &dwc3 { >>>> + extcon = <&extcon_usb3>; >>>> dr_mode = "otg"; >>>> }; >>>> >>>> cheers, >>>> -roger >>>> >>>> >>>> [1] >>>> >>>> [ 115.105743] xhci-hcd xhci-hcd.2.auto: xHCI Host Controller >>>> [ 115.111384] xhci-hcd xhci-hcd.2.auto: new USB bus registered, assigned bus number 3 >>>> [ 115.120903] xhci-hcd xhci-hcd.2.auto: hcc params 0x0220f04c hci version 0x100 quirks 0x0000000002010010 >>>> [ 115.130545] xhci-hcd xhci-hcd.2.auto: irq 166, io mem 0x4a030000 >>>> [ 115.139082] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.20 >>>> [ 115.147491] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1 >>>> [ 115.154783] usb usb3: Product: xHCI Host Controller >>>> [ 115.159757] usb usb3: Manufacturer: Linux 4.20.0-rc1-00048-gd8e2769-dirty xhci-hcd >>>> [ 115.167401] usb usb3: SerialNumber: xhci-hcd.2.auto >>>> [ 115.173794] hub 3-0:1.0: USB hub found >>>> [ 115.177959] hub 3-0:1.0: 1 port detected >>>> [ 115.183078] xhci-hcd xhci-hcd.2.auto: xHCI Host Controller >>>> [ 115.188707] xhci-hcd xhci-hcd.2.auto: new USB bus registered, assigned bus number 4 >>>> [ 115.196513] xhci-hcd xhci-hcd.2.auto: Host supports USB 3.0 SuperSpeed >>>> [ 115.203304] omap-dwc3 4a020000.omap_dwc3: mailbox: VBUS valid >>>> [ 115.209465] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM. >>>> [ 115.218228] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 4.20 >>>> [ 115.226691] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1 >>>> [ 115.234052] usb usb4: Product: xHCI Host Controller >>>> [ 115.239118] usb usb4: Manufacturer: Linux 4.20.0-rc1-00048-gd8e2769-dirty xhci-hcd >>>> [ 115.246871] usb usb4: SerialNumber: xhci-hcd.2.auto >>>> [ 115.252711] hub 4-0:1.0: USB hub found >>>> [ 115.256697] hub 4-0:1.0: 1 port detected >>>> [ 115.626660] usb 4-1: new SuperSpeed Gen 1 USB device number 2 using xhci-hcd >>>> [ 115.662809] usb 4-1: New USB device found, idVendor=8564, idProduct=1000, bcdDevice=11.00 >>>> [ 115.671093] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 >>>> [ 115.678346] usb 4-1: Product: Mass Storage Device >>>> [ 115.683082] usb 4-1: Manufacturer: JetFlash >>>> [ 115.687362] usb 4-1: SerialNumber: 04NWK12LVFGUCOCZ >>>> [ 115.696634] usb-storage 4-1:1.0: USB Mass Storage device detected >>>> [ 115.703795] scsi host1: usb-storage 4-1:1.0 >>>> [ 117.070850] scsi 1:0:0:0: Direct-Access JetFlash Transcend 32GB 1100 PQ: 0 ANSI: 6 >>>> [ 117.082607] sd 1:0:0:0: [sda] 61702144 512-byte logical blocks: (31.6 GB/29.4 GiB) >>>> [ 117.091254] sd 1:0:0:0: [sda] Write Protect is off >>>> [ 117.097436] sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA >>>> [ 117.113372] sda: sda1 sda2 sda3 >>>> [ 117.121578] sd 1:0:0:0: [sda] Attached SCSI removable disk >>>> >>>> root@rockdesk:~# lsusb -t >>>> /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M >>>> |__ Port 1: Dev 2, If 0, Class=stor., Driver=usb-storage, 5000M >>> >>> 5000M looks good! >>> >>>> /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M >>>> /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/3p, 12M >>>> /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-omap/3p, 480M >>>> |__ Port 2: Dev 2, If 0, Class=hub, Driver=hub/3p, 480M >>>> |__ Port 3: Dev 3, If 0, Class=vend., Driver=smsc95xx, 480M >>> >>> I stil could not get more than on the Pyra (haven't tried on OMAP5EVM yet): >>> >>> [ 262.100006] bq24296_otg_enable(1) >>> [ 262.182273] xhci-hcd xhci-hcd.2.auto: xHCI Host Controller >>> [ 262.188886] xhci-hcd xhci-hcd.2.auto: new USB bus registered, assigned bus number 2 >>> [ 262.198343] xhci-hcd xhci-hcd.2.auto: hcc params 0x0220f04c hci version 0x100 quirks 0x0000000002010010 >>> [ 262.208389] xhci-hcd xhci-hcd.2.auto: irq 187, io mem 0x4a030000 >>> [ 262.215165] bq24296_usb_detect: r8=c0 OTG r9=00 >>> [ 262.220610] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.20 >>> [ 262.229383] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 >>> [ 262.237027] usb usb2: Product: xHCI Host Controller >>> [ 262.242248] usb usb2: Manufacturer: Linux 4.20.0-rc5-letux+ xhci-hcd >>> [ 262.248979] usb usb2: SerialNumber: xhci-hcd.2.auto >>> [ 262.266002] hub 2-0:1.0: USB hub found >>> [ 262.269957] hub 2-0:1.0: 1 port detected >>> [ 262.286712] xhci-hcd xhci-hcd.2.auto: xHCI Host Controller >>> [ 262.292760] xhci-hcd xhci-hcd.2.auto: new USB bus registered, assigned bus number 3 >>> [ 262.300847] xhci-hcd xhci-hcd.2.auto: Host supports USB 3.0 SuperSpeed >>> [ 262.307990] usb usb3: We don't know the algorithms for LPM for this host, disabling LPM. >>> [ 262.316739] usb usb3: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 4.20 >>> [ 262.325481] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1 >>> [ 262.333134] usb usb3: Product: xHCI Host Controller >>> [ 262.338335] usb usb3: Manufacturer: Linux 4.20.0-rc5-letux+ xhci-hcd >>> [ 262.345206] usb usb3: SerialNumber: xhci-hcd.2.auto >>> [ 262.362092] hub 3-0:1.0: USB hub found >>> [ 262.366095] hub 3-0:1.0: 1 port detected >>> [ 266.903658] usb usb3-port1: Cannot enable. Maybe the USB cable is bad? >>> [ 271.222539] usb usb3-port1: Cannot enable. Maybe the USB cable is bad? >>> >>> At least the mesaage about the bad USB cable is new. So the patch has some effect. >>> >>> What I am missing is something like >>> >>> [ 115.203304] omap-dwc3 4a020000.omap_dwc3: mailbox: VBUS valid >> >> This was from my local debug patch so you won't see it. > > Ah, I see. Maybe I should add a similar debug command... > >>> >>> Maybe this is just different on the Pyra. We do not use the SMPS10 but an >>> external bq24297 with an out-of tree driver we have hacked together and >>> it might have to send some mail. >> >> Were you able to get High-speed devices working on the xhci port? > > No, they simply don't appear in lsusb besides the above shown log (unless I use an USB2 only cable where devices fall back to 480M) > So I think the USB PHY recognizes that there is a device and also that there is an USB3 cable - but can't establish communication. > > I have never seen something like: > >>>> [ 115.626660] usb 4-1: new SuperSpeed Gen 1 USB device number 2 using xhci-hcd > > > Maybe the cable is really bad. Yes, that looks like the case. It is pretty hard to get a proper USB3.0 OTG adapter. > > I still have to do the test with the OMAP5EVM. Worth a try. cheers, -roger -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
