[U-Boot] [PATCH RFC] OMAP5: uEVM: Enable USB EHCI functionality (preliminary, not tested)

Gilles Chanteperdrix
2013-05-18T15:25:30Z

On 05/16/2013 10:39 AM, Lubomir Popov wrote:

> Hi Gilles,
>
> On 16/05/13 01:31, Gilles Chanteperdrix wrote:
>> On 05/15/2013 05:55 PM, Lubomir Popov wrote:
>>
>>> Prerequisites: appropriate patches to the USB EHCI and Eth
>>> drivers, and to the OMAP5 clock register definitions.
>>
>>
>> Hi Lubomir,
>>
>> I have been trying to get the USB working on omap5 uEVM yesterday. In
>> addition to your code, I added the changes necessary to pinmux the 79
>> and 80 GPIOS correctly, but it does not seem to work. I suspect there is
>> something else missing than simply USB specific bits, because when the
>> ethernet phy is supposedly out of reset, the ethernet leds keep turned
>> off. I was thinking about checking the PMIC registers.
> PMIC wouldn't be related.

Hi,

My idea was that if the ethernet chip does not power up, maybe it is
because some LDO or SMPS needs to be powered on. The board documentation
says for some LDOs that they are enabled on boot and does not say for
others, so that may be because they need to be enabled.

>
> Did you pull the current u-boot master and then apply the following patches
> before testing? Eager to know ;)
>
> http://patchwork.ozlabs.org/patch/232742/
> http://patchwork.ozlabs.org/patch/244100/

I was working with u-boot-ti master, applied all the patches, and it
still does not seem to work. I just tried the u-boot master branch but
it fails to compile for omap5_uevm.

Regards.

--
Gilles.