i.MX25 3-stack - over-current change on port 1 - USB host port not working

[Teemu Peltola]

On 03/17/2011 11:19 AM, Eric Bénard wrote:
> Hi,
>
> On 16/03/2011 15:26, Teemu Peltola wrote:
>> I have Freescale i.MX25 3-stack development board + debug board
>> attached to
>> it. I have built barebox-2011.03.0 using
>> freescale_mx25_3stack_defconfig with
>> some modifications to support NAND booting (see below). I have used
>> buildroot-2011.02 to create 2.6.38 kernel (CONFIG_MACH_MX25_3DS=y
>> etc.) and
>> rootfs images.
>>
>> When I boot these images from barebox, dmesg displays the following error
>> message constantly and USB host port does not work:
>>
>> mxc-ehci mxc-ehci.1: GetStatus port:1 status cc001020 102 ACK POWER
>> sig=se0 OCC
>> hub 1-0:1.0: over-current change on port 1
>> hub 1-0:1.0: enabling power on all ports
>> hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0002
>>
>> If I try to use Freescale RedBoot (mx25_3stack_redboot_TO1_1.bin from
>> L2.6.31_09.12.00_SDK_images_MX25 package) with the same kernel and
>> rootfs, USB
>> works. Is there some initialization that is missing from barebox?
>>
> if you don't need USB in barebox don't enable it. I also have problems
> with OTG port under Linux when it's enabled under barebox. I didn't yet
> found time to investigate.

Disabling USB in barebox did not help.

--
Teemu