Hi Sanchayan, > 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.
I'm very happy that UMS is working seamlessly. What kind of trouble do you have with DFU? > > 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 > > -- Best regards, Lukasz Majewski Samsung R&D Institute Poland (SRPOL) | Linux Platform Group _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
