[U-Boot] Query on the ci_udc driver for USB client implementation

[Fabio Estevam]

On Mon, Nov 3, 2014 at 3:33 AM, Sanchayan Maity
<maitysanchayan at gmail.com> wrote:
> Hello,
>
> Any pointers?

Adding Marek and Stefan on Cc in case they can provide some help.

Regards,

Fabio Estevam

>
> Thanks & Regards,
> Sanchayan Maity.
>
> On Thursday 30 October 2014 11:14 AM, Sanchayan Maity wrote:
>> Hello,
>>
>> I am currently implementing USB Host and client support for Freescale Vybrid platform in u-boot. I managed to get the host implementation working.
>>
>> For the host side, usb start calls usb_init(), which in turns call, usb_lowlevel_init(), from there into the ehic_hcd_init() of my implementation. So, setting up the necessary clocks and plls for USB in my implementation and then setting up the usb_ehci, ehci_hccr and echi_hcor structures was all. The flow and setup required i was able to trace.
>>
>> The USB client part is not clear to me. I was thinking i can use the ci_udc driver somehow to implement the client part. How can i use the ci_udc driver to implement client functionality?. From what i could see, the usb_gadget_driver_register() is suppose to be the first call. But, i couldn't trace from where this gets called or the flow and setup is suppose to be. OR Is a separate client driver required and nothing generic can be used akin to how it could be done for host?
>>
>> Sorry if i am asking this question in the wrong place. I couldn't find anyone in the u-boot IRC channel nor find something similar to the kernel-newbies mailing list.
>>
>> Hope i am asking the right questions.
>>
>> Thanks & Regards,
>> Sanchayan Maity.
>>
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