[U-Boot] [linux-sunxi] Mainline U-Boot, EHCI, usbkbd not working (workaround)

[U-Boot] [linux-sunxi] Mainline U-Boot, EHCI, usbkbd not working (workaround)

[B.R. Oake]

(This started on the linux-sunxi mailing list but will hopefully be
of interest on the U-Boot list)

On 04/01/15 13:45, Lars Doelle wrote:
> while testing with mainline u-boot, I came over the
> problem, that the USB keyboard is not recognized.
> 
> The device is an A20-OLinuXIno-LIME2. I used the
> current A20-OLinuXino-Lime2_defconfig for building.
> 
> In my understanding, the issue should be reproducible
> with all devices having an EHCI root hub.
> 
> ---
> sun7i# usb reset
> (Re)start USB...
> USB0:   USB EHCI 1.00
> scanning bus 0 for devices... cannot reset port 1!?
> 1 USB Device(s) found
> USB1:   USB EHCI 1.00
> scanning bus 1 for devices... 1 USB Device(s) found
>        scanning usb for storage devices... 0 Storage Device(s) found
> sun7i# usb tree
> USB device tree:
>   1  Hub (480 Mb/s, 0mA)
>      u-boot EHCI Host Controller 
>    
>   2  Hub (480 Mb/s, 0mA)
>      u-boot EHCI Host Controller 
> ---
> 
> As a workaround, i plugged an USB hub in between:
> [...]


I also have this problem.  I've tried three different USB keyboards on
an A20-Olinuxino-Micro and a Banana Pi, and I always get that error
"cannot reset port N!?" where N is whichever USB socket I've plugged
it into, and U-Boot cannot see the keyboard.  Once Linux has loaded,
the keyboard works without any trouble.

Can anyone suggest what is causing this?

Thank you,
B.R. Oake.

[U-Boot] [linux-sunxi] Mainline U-Boot, EHCI, usbkbd not working (workaround)

[Hans de Goede]

Hi,

On 04-01-15 19:21, B.R. Oake wrote:
> (This started on the linux-sunxi mailing list but will hopefully be
> of interest on the U-Boot list)
>
> On 04/01/15 13:45, Lars Doelle wrote:
>> while testing with mainline u-boot, I came over the
>> problem, that the USB keyboard is not recognized.
>>
>> The device is an A20-OLinuXIno-LIME2. I used the
>> current A20-OLinuXino-Lime2_defconfig for building.
>>
>> In my understanding, the issue should be reproducible
>> with all devices having an EHCI root hub.
>>
>> ---
>> sun7i# usb reset
>> (Re)start USB...
>> USB0:   USB EHCI 1.00
>> scanning bus 0 for devices... cannot reset port 1!?
>> 1 USB Device(s) found
>> USB1:   USB EHCI 1.00
>> scanning bus 1 for devices... 1 USB Device(s) found
>>         scanning usb for storage devices... 0 Storage Device(s) found
>> sun7i# usb tree
>> USB device tree:
>>    1  Hub (480 Mb/s, 0mA)
>>       u-boot EHCI Host Controller
>>
>>    2  Hub (480 Mb/s, 0mA)
>>       u-boot EHCI Host Controller
>> ---
>>
>> As a workaround, i plugged an USB hub in between:
>> [...]
>
>
> I also have this problem.  I've tried three different USB keyboards on
> an A20-Olinuxino-Micro and a Banana Pi, and I always get that error
> "cannot reset port N!?" where N is whichever USB socket I've plugged
> it into, and U-Boot cannot see the keyboard.  Once Linux has loaded,
> the keyboard works without any trouble.
>
> Can anyone suggest what is causing this?

The problem is that u-boot does not allow building both ohci and
ehci drivers into the same u-boot binary, so we cannot enable both
usb-1 and usb-2 support at the same time.

So we're stuck with having only usb-2 support until someone reworks
u-boot's usb code, and keyboards and mice are typically usb-1 devices,
the workaround for this is to plug in a usb-2 hub so that the board
sees a usb-2 device, and then plug the mouse / keyboard into that
hub.

Regards,

Hans





>
> Thank you,
> B.R. Oake.
>

[U-Boot] [linux-sunxi] Mainline U-Boot, EHCI, usbkbd not working (workaround)

[B.R. Oake]

On 04/01/15 19:05, Hans de Goede wrote:
> The problem is that u-boot does not allow building both ohci and
> ehci drivers into the same u-boot binary, so we cannot enable both
> usb-1 and usb-2 support at the same time.
> 
> So we're stuck with having only usb-2 support until someone reworks
> u-boot's usb code, and keyboards and mice are typically usb-1 devices,
> the workaround for this is to plug in a usb-2 hub so that the board
> sees a usb-2 device, and then plug the mouse / keyboard into that
> hub.

Thanks for the explanation Hans.

At U-Boot time, the only USB device I would need is the keyboard, and
I would rather avoid adding a hub if I don't otherwise need one, so
perhaps I can build U-Boot with the OHCI driver enabled instead of EHCI?
I tried removing CONFIG_USB_EHCI and adding:

CONFIG_USB_OHCI_NEW
CONFIG_SYS_USB_OHCI_BOARD_INIT
CONFIG_SYS_USB_OHCI_CPU_INIT
CONFIG_SYS_USB_OHCI_REGS_BASE=0x01c14400
CONFIG_SYS_USB_OHCI_SLOT_NAME="sunxi_slot_0"
CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS=1

which built and ran, but gave the error "unknown command usb".  Can
this approach be made to work?

Cheers,
B.R.

[U-Boot] [linux-sunxi] Mainline U-Boot, EHCI, usbkbd not working (workaround)

[Simon Glass]

Hi Hans,

On 4 January 2015 at 12:05, Hans de Goede <hdegoede@redhat.com> wrote:
> Hi,
>
>
> On 04-01-15 19:21, B.R. Oake wrote:
>>
>> (This started on the linux-sunxi mailing list but will hopefully be
>> of interest on the U-Boot list)
>>
>> On 04/01/15 13:45, Lars Doelle wrote:
>>>
>>> while testing with mainline u-boot, I came over the
>>> problem, that the USB keyboard is not recognized.
>>>
>>> The device is an A20-OLinuXIno-LIME2. I used the
>>> current A20-OLinuXino-Lime2_defconfig for building.
>>>
>>> In my understanding, the issue should be reproducible
>>> with all devices having an EHCI root hub.
>>>
>>> ---
>>> sun7i# usb reset
>>> (Re)start USB...
>>> USB0:   USB EHCI 1.00
>>> scanning bus 0 for devices... cannot reset port 1!?
>>> 1 USB Device(s) found
>>> USB1:   USB EHCI 1.00
>>> scanning bus 1 for devices... 1 USB Device(s) found
>>>         scanning usb for storage devices... 0 Storage Device(s) found
>>> sun7i# usb tree
>>> USB device tree:
>>>    1  Hub (480 Mb/s, 0mA)
>>>       u-boot EHCI Host Controller
>>>
>>>    2  Hub (480 Mb/s, 0mA)
>>>       u-boot EHCI Host Controller
>>> ---
>>>
>>> As a workaround, i plugged an USB hub in between:
>>> [...]
>>
>>
>>
>> I also have this problem.  I've tried three different USB keyboards on
>> an A20-Olinuxino-Micro and a Banana Pi, and I always get that error
>> "cannot reset port N!?" where N is whichever USB socket I've plugged
>> it into, and U-Boot cannot see the keyboard.  Once Linux has loaded,
>> the keyboard works without any trouble.
>>
>> Can anyone suggest what is causing this?
>
>
> The problem is that u-boot does not allow building both ohci and
> ehci drivers into the same u-boot binary, so we cannot enable both
> usb-1 and usb-2 support at the same time.
>
> So we're stuck with having only usb-2 support until someone reworks
> u-boot's usb code, and keyboards and mice are typically usb-1 devices,
> the workaround for this is to plug in a usb-2 hub so that the board
> sees a usb-2 device, and then plug the mouse / keyboard into that
> hub.

This could be solved by moving USB to driver model.

Marek do you know if anyone is looking at this?

Regards,
Simon

[U-Boot] [linux-sunxi] Mainline U-Boot, EHCI, usbkbd not working (workaround)

[Marek Vasut]

On Monday, January 05, 2015 at 03:49:32 AM, Simon Glass wrote:
> Hi Hans,

Hi all,

[...]

> > The problem is that u-boot does not allow building both ohci and
> > ehci drivers into the same u-boot binary, so we cannot enable both
> > usb-1 and usb-2 support at the same time.
> > 
> > So we're stuck with having only usb-2 support until someone reworks
> > u-boot's usb code, and keyboards and mice are typically usb-1 devices,
> > the workaround for this is to plug in a usb-2 hub so that the board
> > sees a usb-2 device, and then plug the mouse / keyboard into that
> > hub.
> 
> This could be solved by moving USB to driver model.
> 
> Marek do you know if anyone is looking at this?

To my knowledge, noone at this point. I cannot tell when I will be able
to dive into this due to the university stuff, sorry about that :(

Best regards,
Marek Vasut

[U-Boot] [linux-sunxi] Mainline U-Boot, EHCI, usbkbd not working (workaround)

[Hans de Goede]

Hi,

On 05-01-15 03:49, Simon Glass wrote:
> Hi Hans,
>
> On 4 January 2015 at 12:05, Hans de Goede <hdegoede@redhat.com> wrote:
>> Hi,
>>
>>
>> On 04-01-15 19:21, B.R. Oake wrote:
>>>
>>> (This started on the linux-sunxi mailing list but will hopefully be
>>> of interest on the U-Boot list)
>>>
>>> On 04/01/15 13:45, Lars Doelle wrote:
>>>>
>>>> while testing with mainline u-boot, I came over the
>>>> problem, that the USB keyboard is not recognized.
>>>>
>>>> The device is an A20-OLinuXIno-LIME2. I used the
>>>> current A20-OLinuXino-Lime2_defconfig for building.
>>>>
>>>> In my understanding, the issue should be reproducible
>>>> with all devices having an EHCI root hub.
>>>>
>>>> ---
>>>> sun7i# usb reset
>>>> (Re)start USB...
>>>> USB0:   USB EHCI 1.00
>>>> scanning bus 0 for devices... cannot reset port 1!?
>>>> 1 USB Device(s) found
>>>> USB1:   USB EHCI 1.00
>>>> scanning bus 1 for devices... 1 USB Device(s) found
>>>>          scanning usb for storage devices... 0 Storage Device(s) found
>>>> sun7i# usb tree
>>>> USB device tree:
>>>>     1  Hub (480 Mb/s, 0mA)
>>>>        u-boot EHCI Host Controller
>>>>
>>>>     2  Hub (480 Mb/s, 0mA)
>>>>        u-boot EHCI Host Controller
>>>> ---
>>>>
>>>> As a workaround, i plugged an USB hub in between:
>>>> [...]
>>>
>>>
>>>
>>> I also have this problem.  I've tried three different USB keyboards on
>>> an A20-Olinuxino-Micro and a Banana Pi, and I always get that error
>>> "cannot reset port N!?" where N is whichever USB socket I've plugged
>>> it into, and U-Boot cannot see the keyboard.  Once Linux has loaded,
>>> the keyboard works without any trouble.
>>>
>>> Can anyone suggest what is causing this?
>>
>>
>> The problem is that u-boot does not allow building both ohci and
>> ehci drivers into the same u-boot binary, so we cannot enable both
>> usb-1 and usb-2 support at the same time.
>>
>> So we're stuck with having only usb-2 support until someone reworks
>> u-boot's usb code, and keyboards and mice are typically usb-1 devices,
>> the workaround for this is to plug in a usb-2 hub so that the board
>> sees a usb-2 device, and then plug the mouse / keyboard into that
>> hub.
>
> This could be solved by moving USB to driver model.

Yes, that is what I was thinking too.

> Marek do you know if anyone is looking at this?

Actually I was about to ask you (Simon) if you are looking into converting
the usb stuff to dm, AFAIK no one else is working on this.

Regards,

Hans

[U-Boot] [linux-sunxi] Mainline U-Boot, EHCI, usbkbd not working (workaround)

[Simon Glass]

Hi Hans,

On 5 January 2015 at 00:10, Hans de Goede <hdegoede@redhat.com> wrote:
> Hi,
>
>
> On 05-01-15 03:49, Simon Glass wrote:
>>
>> Hi Hans,
>>
>> On 4 January 2015 at 12:05, Hans de Goede <hdegoede@redhat.com> wrote:
>>>
>>> Hi,
>>>
>>>
>>> On 04-01-15 19:21, B.R. Oake wrote:
>>>>
>>>>
>>>> (This started on the linux-sunxi mailing list but will hopefully be
>>>> of interest on the U-Boot list)
>>>>
>>>> On 04/01/15 13:45, Lars Doelle wrote:
>>>>>
>>>>>
>>>>> while testing with mainline u-boot, I came over the
>>>>> problem, that the USB keyboard is not recognized.
>>>>>
>>>>> The device is an A20-OLinuXIno-LIME2. I used the
>>>>> current A20-OLinuXino-Lime2_defconfig for building.
>>>>>
>>>>> In my understanding, the issue should be reproducible
>>>>> with all devices having an EHCI root hub.
>>>>>
>>>>> ---
>>>>> sun7i# usb reset
>>>>> (Re)start USB...
>>>>> USB0:   USB EHCI 1.00
>>>>> scanning bus 0 for devices... cannot reset port 1!?
>>>>> 1 USB Device(s) found
>>>>> USB1:   USB EHCI 1.00
>>>>> scanning bus 1 for devices... 1 USB Device(s) found
>>>>>          scanning usb for storage devices... 0 Storage Device(s) found
>>>>> sun7i# usb tree
>>>>> USB device tree:
>>>>>     1  Hub (480 Mb/s, 0mA)
>>>>>        u-boot EHCI Host Controller
>>>>>
>>>>>     2  Hub (480 Mb/s, 0mA)
>>>>>        u-boot EHCI Host Controller
>>>>> ---
>>>>>
>>>>> As a workaround, i plugged an USB hub in between:
>>>>> [...]
>>>>
>>>>
>>>>
>>>>
>>>> I also have this problem.  I've tried three different USB keyboards on
>>>> an A20-Olinuxino-Micro and a Banana Pi, and I always get that error
>>>> "cannot reset port N!?" where N is whichever USB socket I've plugged
>>>> it into, and U-Boot cannot see the keyboard.  Once Linux has loaded,
>>>> the keyboard works without any trouble.
>>>>
>>>> Can anyone suggest what is causing this?
>>>
>>>
>>>
>>> The problem is that u-boot does not allow building both ohci and
>>> ehci drivers into the same u-boot binary, so we cannot enable both
>>> usb-1 and usb-2 support at the same time.
>>>
>>> So we're stuck with having only usb-2 support until someone reworks
>>> u-boot's usb code, and keyboards and mice are typically usb-1 devices,
>>> the workaround for this is to plug in a usb-2 hub so that the board
>>> sees a usb-2 device, and then plug the mouse / keyboard into that
>>> hub.
>>
>>
>> This could be solved by moving USB to driver model.
>
>
> Yes, that is what I was thinking too.
>
>> Marek do you know if anyone is looking at this?
>
>
> Actually I was about to ask you (Simon) if you are looking into converting
> the usb stuff to dm, AFAIK no one else is working on this.

I think Marek is busy for a while.

I'd like to get PCI over the line first, and I have a few other things
on my plate.

But I think it would not be too difficult to move the
usb_lowlevel_init() stuff into driver model. That would solve the
primary problem I think. I'll see how things look later in the month.

Regards,
Simon

[U-Boot] [linux-sunxi] Mainline U-Boot, EHCI, usbkbd not working (workaround)

[John Morelli]

apt-get install gcc-4.7-arm-linux-gnueabihf ncurses-dev uboot-mkimage 
build-essential git 
http://lists.denx.de/pipermail/u-boot/2015-January/200162.html