On Tue, Aug 19, 2014 at 08:48:36PM +0530, Kishon Vijay Abraham I wrote: > Hi Lukasz, > > On Tuesday 19 August 2014 02:22 PM, Lukasz Majewski wrote: > > Hi Kishon, > > > >> In order to support multiple USB device controllers in uboot, > >> udc-core is needed. > > > > Is it? In u-boot at best only one UDC is operational at a time. > > I didn't mean operational at the same time. dra7xx has 4 USB > controllers and we should allow the user to use any USB port for DFU.
but from u-boot's perspective, that can (should?) be a build-time choice. That user, certainly, won't need more than one port active for booting, right ? > >> udc-core also helps to cleanly link the USB > >> peripheral driver with the gadget driver. Hence Ported minimal > >> udc-core from linux kernel. > > > > I'd appreciate the exact SHA for this udc-core.c code. And the SHA > > should be from some already released mainline code (like final 3.16), > > not any private branch nor linux-next. > > We can't have the exact udc-core.c from linux kernel as it deals with > kernel driver model stuff and vfs which is not needed for kernel. > Trying to have the exact same code from kernel complicates it. what he means is to point to the SHA1 when you originally forked the code from kernel. Sure udc-core can't be the same, but you based off of a known commit ID frmo the kernel. -- balbi
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