USB 3.0 is broken on Odroid Xu4 on latest kernel

[Anand Moon]

Hi All,

On 21 July 2017 at 16:10, Anand Moon <linux.amoon at gmail.com> wrote:
> Hi Markus Reichl/ Felipe/ Krzysztof / Jochen,
>
> On 21 July 2017 at 14:56, Markus Reichl <m.reichl at fivetechno.de> wrote:
>> Hi Anand,
>>
>> the issue below is fixed with
>> 4.13.0-rc1-next-20170721.
>>
>> Gruß,
>> --
>> Markus Reichl
>>
>> Am 19.07.2017 um 16:58 schrieb Anand Moon:
>>> Hi Krzysztof,
>>>
>>> Today I tried to compile the latest kernel for Odroid xu4.
>>> using exynos_defconfig I build and loaded the kernel.
>>> but to my surprise usb 3.0 device and missing.
>>>
>>> odroid login: root
>>> Password:
>>> Last login: Wed Jul 19 14:01:44 UTC 2017 on ttySAC2
>>> Welcome to Ubuntu 16.04.2 LTS (GNU/Linux 4.13.0-rc1-xu4ml-27846-g74cbd96 armv7l)
>>>
>>>  * Documentation:  https://help.ubuntu.com
>>>  * Management:     https://landscape.canonical.com
>>>  * Support:        https://ubuntu.com/advantage
>>> root at odroid:~# lsusb
>>> Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
>>> Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>>> Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
>>> Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>>> Bus 002 Device 002: ID 0603:0002 Novatek Microelectronics Corp.
>>> Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>>> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>>> root at odroid:~# lsusb -t
>>> /:  Bus 06.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M
>>> /:  Bus 05.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M
>>> /:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M
>>> /:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M
>>> /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=exynos-ohci/3p, 12M
>>>     |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
>>>     |__ Port 1: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
>>> /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=exynos-ehci/3p, 480M
>>>
>>> Full dmesg can be found on blow link.
>>> https://pastebin.com/K3xfPCPe
>>>
>>> The reason for failed is below.
>>>
>>> [    7.187096] usb usb4-port1: connect-debounce failed
>>>
>>> I tried to debug this but failed to find the root cause.
>>> Nothing is connected to the UBS 3.0 port for the failure to cause.
>>>
>>> If I load old kernel it seen to work correctly.
>>> If you provoid some input I will give this a try.
>>>
>
> Thanks for your tips and input.
>
> I was going to 'git bisect' over this weekend.
> But I will now check the 4.13.0-rc1-next-20170721
> and let you all know if this resolves the issue.
>

Just build and tested the 4.13.0-rc1-next-20170721.
so kernel is good enough to enumerate the usbdrd_dwc3_1 (usb port 6,5)
but this failed to enumerate the usbdrd_dwc3_10 (usb port 4,3).

root at odroidxu4q:~# lsusb -t
/:  Bus 06.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M
/:  Bus 05.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M
    |__ Port 1: Dev 2, If 0, Class=Vendor Specific Class, Driver=r8152, 480M
/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/2p, 480M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=exynos-ohci/3p, 12M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=exynos-ehci/3p, 480M

Best Regards
-Anand