On Thursday, June 26, 2014 at 06:46:11 AM, Vivek Gautam wrote: > Hi Simon, Marek, > > > On Thu, Jun 26, 2014 at 10:04 AM, Vivek Gautam <gautam.vi...@samsung.com> > wrote: > > sorry for spamming, the earlier message got sent by mistake. > > > On Thu, Jun 26, 2014 at 8:00 AM, Simon Glass <s...@chromium.org> wrote: > >> Hi Marek, > >> > >> On 25 June 2014 02:33, Marek Vasut <ma...@denx.de> wrote: > >>> On Wednesday, June 25, 2014 at 08:27:39 AM, Simon Glass wrote: > >>> [...] > >>> > >>>> > > > model. Instead, I'd love to see a mean to instantiate each *HCI > >>>> > > > controller and have a USB core which would track those > >>>> > > > instances. The USB core would then be able to call whatever > >>>> > > > generic ops on those instances as needed. Does that make sense > >>>> > > > please ? > >>>> > > > >>>> > > True, i understand your point here. I think the second approach i > >>>> > > was talking of, goes in this direction. > >>>> > > I think i could not put it well in words there. > >>>> > > > >>>> > > I will prepare an RFC patch for that, and post it as soon as its > >>>> > > ready, so that you can have > >>>> > > a look. > >>>> > > >>>> > Ah, this would be so very appreciated! Thank you! > >>>> > >>>> Should we consider just going straight for driver model? > >>> > >>> I was thinking about that, but I'm worried it might break USB support > >>> on some platforms. Also, the size of U-Boot will grow on many > >>> platforms, right? > >>> > >>> What do you think ? > >> > >> If you add CONFIG_DM_USB as an option, you can then pull in either > >> usb-uclass.c or the old usb code. Since USB is often tied to a board > >> then you can move just that board (or group of boards) to dm. > >> > >> I am keeping a working tree in u-boot-dm.git which does this for > >> serial, SPI, SPI flash and GPIO. It seems to work fairly well as a > >> technique for keeping both things in the tree in the interim.. > > Ok, so i am having a look at the u-boot-dm tree, and also going through the > documentation for driver-model. > The driver-model looks a promising choice at the moment keeping in mind > that later we would need to move to it anyways. > > I will try understanding the things and raise a flag in case something > is not clear.
Even better, if I don't have to do this myself :) I'm really glad to see how many people put effort into the USB and how things are coming together nicely. Thank you guys! Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
