Hi Sven,
On 05/10/15 18:50, Sven Bock wrote:
> Hello,
>
> I do not manage to enable my USB or ethernet ports on my beagleboard xm rev
> C. The D14 Led is off. I use an external power supply of 5V 4A.
>
> I installed Ubuntu 14.04 according to:
> http://elinux.org/BeagleBoardUbuntu
> This one boots into a command line.
>
> I also tried it with the production image:
> http://elinux.org/Beagleboard:BeagleBoard-xM
> This one correctly boots the graphical interface
>
> All usb ports, as well as the ethernet are dead.
> I successfully managed connecting with a USB to serial adapter to the
> beagleboard. So I actually have a terminal and be able to type!
> According to the linux configuration parameters below for USB, the ports are
> enabled.
> /sys/bus/usb/devices/usb1/power/autosuspend_delay_m
> /sys/bus/usb/devices/usb1/power/control
>
> Is there a beagleboard specific configuration I have missed?
> Do I need a uEnv.txt in the boot partition to power up the usb and ethernet
> during boot? If yes, what is the essential code for enabling the usb and
> ethernet?
You don't need any uEnv. All you need in the kernel is the USB EHCI drivers.
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_HCD_OMAP=y
You will also need the TWL PMIC GPIO driver
CONFIG_GPIO_TWL4030=y
>
> Should they be working by default after flashing the image?
> Could that be just a configuration problem or more a hardware issue?
led D14 must turn ON when USB hub is powered. Looks like the software
isn't turning on power for the USB hub so I wouldn't suspect hardware yet.
>
> Any hint, what is going on with my board is greatly appreciated.
Can you please paste your kernel boot log in pastebin and the output of
cat /sys/kernel/debug/gpio
cheers,
-roger
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