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