[U-Boot] [RFC PATCH 2/2] USB: xHCI: Add stack support for xHCI

Marek Vasut marex at denx.de
Fri Oct 26 12:18:29 CEST 2012


Dear Vivek Gautam,

> HI,
> 
> On Wed, Oct 24, 2012 at 4:05 AM, Tom Rini <trini at ti.com> wrote:
> > On Tue, Oct 23, 2012 at 01:43:51PM +0200, Marek Vasut wrote:
> >> Dear Vivek Gautam,
> >> 
> >> > This adds stack layer for eXtensible Host Controller Interface
> >> > which facilitates use of USB 3.0 in host mode.
> >> > 
> >> > This work is based on xHCI host controller driver in linux-kernel
> >> > by Sarah Sharp.
> >> > The code corresponding to xhci.c, xhci-mem.c, xhci-ring.c and
> >> > xhci-hub.c in linux-kernel is grouped together here in
> >> > single driver 'xhci.c'.
> >> 
> >> I wouldn't object keeping them separate so they can be easily synced
> >> with the Linux code actually. Can you try doing it that way ? (Pull it
> >> from Linux and do just minimal adjustments to wire it into U-Boot ...
> >> maybe implement some translation layer) ?
> > 
> > Agreed, we want to figure out how to keep this code in sync with the
> > kernel.
> 
> Good that we split the file (having separate files xhci.c, xhci-mem.c,
> xhci-ring.c)
> with certain changes and adjustments ?
> This way we shall be able to keep track of it keep in-sync with kernel.

Sounds good :)

Best regards,
Marek Vasut


More information about the U-Boot mailing list