On Wednesday, September 17, 2014 at 09:29:07 PM, Eric Nelson wrote:
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) foundAnd 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.
I agree, this happens. Which controller and driver do you use on the Sunxi hardware?
btw you can check if this is a cache issue by disabling dcache (set CONFIG_CMD_CACHE in the config and use 'dcache off' before 'usb start'). You can also patch the arch/arm/lib/cache-cp15.c functions to do additional alignment checks (always a good idea) , just like I did that in arch/arm/cpu/arm926ejs/cache.c
Best regards, Marek Vasut