[coreboot] EHCI Debug Gadget
jlewis at johnlewis.ie
Thu Oct 17 18:06:00 CEST 2013
Yeah, changing usb dongle selection in coreboot menuconfig to NET20DC
or compatible worked. :)
Which, will lead me onto my next mailing list submission once I have
perused the output.
On 17/10/2013 16:47, John Lewis wrote:
> On 17/10/2013 16:35, Kyösti Mälkki wrote:
>> On 17.10.2013 17:45, John Lewis wrote:
>>> Hey Guys, I'm trying to setup a Beaglebone Black as the subject.
>>> followed the instructions and I get lots of this when I try to make
>>> it do it's thang: [ 3142.831914] CAUTION: musb: Babble Interrupt
>>> Occurred [ 3143.107609] gadget: setup: failure req 9 v 1 [
>>> 3143.289034] CAUTION: musb: Babble Interrupt Occurred [
>>> gadget: disconnected [ 3143.564615] gadget: setup: failure req 9 v
>>> [ 3143.746013] CAUTION: musb: Babble Interrupt Occurred [
>>> 3143.746058] gadget: disconnected [ 3144.021599] gadget: setup:
>>> failure req 9 v 1 [ 3144.264994] CAUTION: musb: Babble Interrupt
>>> Occurred [ 3144.265038] gadget: disconnected [ 3144.540802] gadget:
>>> setup: failure req 9 v 1 [ 3144.722247] CAUTION: musb: Babble
>>> Interrupt Occurred [ 3144.722304] gadget: disconnected [
>>> gadget: setup: failure req 9 v 1 [ 3145.179357] CAUTION: musb:
>>> Interrupt Occurred [ 3145.179415] gadget: disconnected Any
>>> Web search comes up fruitless except for references to the kernel
>>> source code which I don't understand. ;) Thanks, John.
>> Hi John Apply the patches and follow the instructions here for
>> BeagleBone Black kernel: http://www.coreboot.org/EHCI_Gadget_Debug
>> In coreboot menuconfig, the selection of usbdebug dongle
>> is only for 'BeagleBone', not 'BeagleBone Black'. I better add
>> for 'BeagleBone Black' to avoid the confusion. Select 'Net20DC
>> compatible' for now. Also in coreboot menuconfig, under 'Debugging',
>> enable verbose usbdebug messaging. Of course you will need another
>> working console to receive those messages, CBMEM console will do if
>> your target system is able to reach OS. Regards, Kyösti
> Hi Kyösti,
> Man, you are quick. :)
> Yeah, I followed those instructions. The BBB's kernel and modules
> been compiled with the patches.
> Ah, that explains part of it then, because I had selected Beaglebone
> opposed to NET20DC or compatible.
> It isn't able to reach OS, but if changing the coreboot menuconfig
> doesn't fix it I shall try it on a Chromebook which is working with
> coreboot, and revert.
> Thank you!
More information about the coreboot