Hi Hans, On 4 January 2015 at 12:05, Hans de Goede <[email protected]> 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 mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
