USB with 3.14.3 not working on Freescale i.mx6

USB with 3.14.3 not working on Freescale i.mx6

[Till Klocke]

Hello,

Currently I am trying to get a recent and stable Linux kernel running
on a Phytec PhyFlex board based on the i.mx6 processor from Freescale.
I saw that this processor is supported by the Linux kernel and
compiled it. It boots successfull and everything I tested so far seems
to be working except for USB. When I activate debugging for the LibUSB
and do a 'lsusb' I get the following:

[timestamp] [threadID] facility level [function call] <message>
--------------------------------------------------------------------------------
[ 0.000000] [0000073a] libusbx: error [op_init] could not find usbfs
unable to initialize libusb: -99

I am basically using the default configuration delivered with the
kernel. Did anyone has successfully ran a recent Linux kernel on a
i.mx6 based board and give me some advice on how to solve my USB
problem?

Thanks in advance,

Greetings

USB with 3.14.3 not working on Freescale i.mx6

[Fabio Estevam]

On Wed, May 14, 2014 at 6:17 AM, Till Klocke <till.klocke@yetu.com> wrote:
> Hello,
>
> Currently I am trying to get a recent and stable Linux kernel running
> on a Phytec PhyFlex board based on the i.mx6 processor from Freescale.

Which dts file do you use?

USB is functional on other mx6 boards.

Re: USB with 3.14.3 not working on Freescale i.mx6

[Alexander Shiyan]

Fri, 16 May 2014 13:20:29 -0300 ?? Fabio Estevam <festevam@gmail.com>:
> On Wed, May 14, 2014 at 6:17 AM, Till Klocke <till.klocke@yetu.com> wrote:
> > Hello,
> >
> > Currently I am trying to get a recent and stable Linux kernel running
> > on a Phytec PhyFlex board based on the i.mx6 processor from Freescale.
> 
> Which dts file do you use?
> 
> USB is functional on other mx6 boards.

It's just words. Fabio, just give portion of the log (if it possible) where we
see that USB is works with this kernel version and similar hardware.

---

USB with 3.14.3 not working on Freescale i.mx6

[Fabio Estevam]

On Fri, May 16, 2014 at 1:31 PM, Alexander Shiyan <shc_work@mail.ru> wrote:
> Fri, 16 May 2014 13:20:29 -0300 ?? Fabio Estevam <festevam@gmail.com>:
>> On Wed, May 14, 2014 at 6:17 AM, Till Klocke <till.klocke@yetu.com> wrote:
>> > Hello,
>> >
>> > Currently I am trying to get a recent and stable Linux kernel running
>> > on a Phytec PhyFlex board based on the i.mx6 processor from Freescale.
>>
>> Which dts file do you use?
>>
>> USB is functional on other mx6 boards.
>
> It's just words. Fabio, just give portion of the log (if it possible) where we
> see that USB is works with this kernel version and similar hardware.

On a imx6q-wandboard:

fec 2188000.ethernet eth0: Freescale FEC PHY driver [Atheros 8031 ethernet] (mi)
IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
scsi 1:0:0:0: Direct-Access     Ut163    USB2FlashStorage 0.00 PQ: 0 ANSI: 2
sd 1:0:0:0: [sda] 248000 512-byte logical blocks: (126 MB/121 MiB)
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] Asking for cache data failed
sd 1:0:0:0: [sda] Assuming drive cache: write through
 sda: sda1
sd 1:0:0:0: [sda] Attached SCSI removable disk
...

root at freescale /$ uname -r
3.15.0-rc5
root at freescale /$ lsusb
Bus 001 Device 002: ID 0457:0151
Bus 001 Device 001: ID 1d6b:0002

Haven't tried 3.14 though. Is it broken on 3.14? Can you try 3.15-rc5
to compare?

Re: USB with 3.14.3 not working on Freescale i.mx6

[Alexander Shiyan]

Fri, 16 May 2014 13:46:52 -0300 ?? Fabio Estevam <festevam@gmail.com>:
> On Fri, May 16, 2014 at 1:31 PM, Alexander Shiyan <shc_work@mail.ru> wrote:
> > Fri, 16 May 2014 13:20:29 -0300 ?? Fabio Estevam <festevam@gmail.com>:
> >> On Wed, May 14, 2014 at 6:17 AM, Till Klocke <till.klocke@yetu.com> wrote:
> >> > Hello,
> >> >
> >> > Currently I am trying to get a recent and stable Linux kernel running
> >> > on a Phytec PhyFlex board based on the i.mx6 processor from Freescale.
> >>
> >> Which dts file do you use?
> >>
> >> USB is functional on other mx6 boards.
> >
> > It's just words. Fabio, just give portion of the log (if it possible) where we
> > see that USB is works with this kernel version and similar hardware.
> 
> On a imx6q-wandboard:
> 
> fec 2188000.ethernet eth0: Freescale FEC PHY driver [Atheros 8031 ethernet] (mi)
> IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
> scsi 1:0:0:0: Direct-Access     Ut163    USB2FlashStorage 0.00 PQ: 0 ANSI: 2
> sd 1:0:0:0: [sda] 248000 512-byte logical blocks: (126 MB/121 MiB)
> sd 1:0:0:0: [sda] Write Protect is off
> sd 1:0:0:0: [sda] Asking for cache data failed
> sd 1:0:0:0: [sda] Assuming drive cache: write through
>  sda: sda1
> sd 1:0:0:0: [sda] Attached SCSI removable disk
> ...
> 
> root at freescale /$ uname -r
> 3.15.0-rc5
> root at freescale /$ lsusb
> Bus 001 Device 002: ID 0457:0151
> Bus 001 Device 001: ID 1d6b:0002
> 
> Haven't tried 3.14 though. Is it broken on 3.14? Can you try 3.15-rc5
> to compare?

I check USB periodically for themselves. But for i.MX27 only.
If any *-rc will fail for me, I would say about it.
So in this case I think there is a common problem with ULPI uninitialize...
Is UPLI is used in this case?

---

USB with 3.14.3 not working on Freescale i.mx6

[Fabio Estevam]

On Fri, May 16, 2014 at 1:31 PM, Alexander Shiyan <shc_work@mail.ru> wrote:
> Fri, 16 May 2014 13:20:29 -0300 ?? Fabio Estevam <festevam@gmail.com>:
>> On Wed, May 14, 2014 at 6:17 AM, Till Klocke <till.klocke@yetu.com> wrote:
>> > Hello,
>> >
>> > Currently I am trying to get a recent and stable Linux kernel running
>> > on a Phytec PhyFlex board based on the i.mx6 processor from Freescale.
>>
>> Which dts file do you use?
>>
>> USB is functional on other mx6 boards.
>
> It's just words. Fabio, just give portion of the log (if it possible) where we
> see that USB is works with this kernel version and similar hardware.

Also tested on 3.14.4:

root at freescale /$ uname -r
3.14.4
root at freescale /$ lsusb
Bus 001 Device 002: ID 0457:0151
Bus 001 Device 001: ID 1d6b:0002

USB is working fine on this board and others, so it is 'not only
words' as you said :-)

I am not familiar with "Phytec PhyFlex board" and don't know which dts
file it uses. Also, I haven't seen any kernel logs, so it is difficult
to tell what is wrong with this hardware.