[PATCH v8 5/5] ARM: OMAP: gpmc: add DT bindings for GPMC timings and NAND
Tony Lindgren
tony at atomide.com
Wed Jan 16 05:03:24 EST 2013
* Daniel Mack <zonque at gmail.com> [130114 15:30]:
> On Jan 15, 2013 2:06 AM, "Tony Lindgren" <tony at atomide.com> wrote:
> >
> > * Ezequiel Garcia <elezegarcia at gmail.com> [121223 13:49]:
> > > On Fri, Dec 14, 2012 at 7:36 AM, Daniel Mack <zonque at gmail.com> wrote:
> > > > +
> > > > +Example for an AM33xx board:
> > > > +
> > > > + gpmc: gpmc at 50000000 {
> > > > + compatible = "ti,am3352-gpmc";
> > > > + ti,hwmods = "gpmc";
> > > > + reg = <0x50000000 0x1000000>;
> > > > + interrupts = <100>;
> > > > + gpmc,num-cs = <8>;
> > > > + gpmc,num-waitpins = <2>;
> > > > + #address-cells = <2>;
> > > > + #size-cells = <1>;
> > > > + ranges = <0 0 0x08000000 0x2000>; /* CS0: NAND
> */
> > > > +
> > > > + nand at 0,0 {
> > > > + reg = <0 0 0>; /* CS0, offset 0 */
> > >
> > > I'm a bit confused by this: what are the other two values in "reg"?
> > > I see you've only added a binding for CS.
> > >
> > > I've extended a bit on your work and added a binding to enable OneNAND
> > > device on my IGEP board.
> > >
> > > I might send some patches in case anyone wants to give it a try.
> >
> > Daniel, should this be updated to just pass the CS?
>
> No, as Rob pointed out earlier in a thread about this topic, the 'ranges'
> feature will help doing the math for the offset calculation eventually, so
> we need to pass all three values.
OK thanks. Applying this set into omap-for-v3.9/gpmc.
Also sounds like Ezequiel needs to update his follow up patches accordingly.
Regards,
Tony
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