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. > >> 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
