Hi Hans,
On 09/17/2014 12:11 PM, Hans de Goede wrote:
> Hi Marek, et al,
>
> I'm working on cleaning up Luc's hdmi out support patchset for
> sunxi.
>
> As part of this I want to also add support for usb keyboards,
> so as to get a full console without needing to solder wires
> to testpoints on some boards :)
>
> So when I plug in the usb coming from my kvm I get this:
>
> (Re)start USB...
> USB0: USB EHCI 1.00
> scanning bus 0 for devices... EHCI timed out on TD - token=0x80008c80
> 3 USB Device(s) found
> scanning usb for storage devices... 0 Storage Device(s) found
>
> And the usb keyboard does not work.
>
> If I plug in a single usb-2 hub (no ohci support for sunxi in u-boot
> yet), then things do work, but after a few minutes of inactivity the
> usb code starts spamming the console with:
>
> EHCI timed out on TD - token=0x80008c80
> EHCI timed out on TD - token=0x80008c80
> ...
>
> Could this be a problem with the phy settings (iow a sunxi specific
> problem)?
>
Probably not.
We've seen the same thing on SABRE Lite and Nitrogen6X boards.
U-Boot > usb start ; setenv stdin serial,usbkbd
(Re)start USB...
USB0: USB EHCI 1.00
scanning bus 0 for devices... 2 USB Device(s) found
USB1: USB EHCI 1.00
scanning bus 1 for devices... EHCI timed out on TD - token=0x80008c80
EHCI timed out on TD - token=0x80008c80
EHCI timed out on TD - token=0x80008c80
6 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
scanning usb for ethernet devices... 0 Ethernet Device(s) found
Timeout poll on interrupt endpoint
Failed to get keyboard state from device 1c4f:0002
U-Boot > usb tree
USB device tree:
1 Hub (480 Mb/s, 0mA)
| u-boot EHCI Host Controller
|
+-2 Mass Storage (480 Mb/s, 100mA)
Generic Mass Storage 4A3709D5
3 Hub (480 Mb/s, 0mA)
| u-boot EHCI Host Controller
|
+-4 Hub (480 Mb/s, 2mA)
|
+-5 Human Interface (1.5 Mb/s, 100mA)
| Logitech USB Optical Mouse
|
+-6 Hub (480 Mb/s, 100mA)
| | USB 2.0 Hub
| |
| +-7 Human Interface (1.5 Mb/s, 98mA)
| USB USB Keykoard
|
+-8 (12 Mb/s, 100mA)
Oddly, the issue seems to be specific to **some** USB keyboards.
We have some (mostly older) USB keyboards that just work and
have had investigation on our to-do list for quite some
time now.
I was going to start with a question to the list:
Is anyone else using USB keyboard support?
USB mass storage seems to be pretty reliable. We have
folks using it as an alternate boot for emergency
situations.
Regards,
Eric
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