On Tuesday 04 November 2014 10:25 AM, Marek Vasut wrote: > On Monday, November 03, 2014 at 04:46:48 PM, Fabio Estevam wrote: >> On Mon, Nov 3, 2014 at 3:33 AM, Sanchayan Maity >> >> <maitysancha...@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? > > See include/configs/sansa_fuze_plus.h , you need the gadget driver for the > function you want to implement , in this case it's ethernet for example > (selected via CONFIG_USB_ETH_CDC ). > > An example of DFU/UMS can be found in include/configs/exynos4-common.h > and to activate those, you need to use the 'dfu' or 'ums' commands.
Thank you Marek. I had enabled usb ether options already and was trying to test USB client functionality with RNDIS. For some reason it was not working and i was not able to trace the issue and subsequently was not sure about the client part. Your inputs cleared my doubts. I tried UMS and DFU. UMS is working just fine and i can download the respective images through DFU. Though this DFU is not working full proof, but, i can figure that out now i feel. Thanks again for your inputs. Cheers! Best Regards, Sanchayan. > >>>> 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. > > There isn't any, so ask away ;-) > >>>> Hope i am asking the right questions. > [...] > > Best regards, > Marek Vasut > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
