On Wed, Jan 29, 2014 at 8:34 AM, Boris BREZILLON <b.brezillon.dev@xxxxxxxxx> wrote: > Add the sunxi NAND Flash Controller dt bindings documentation. > > Signed-off-by: Boris BREZILLON <b.brezillon.dev@xxxxxxxxx> > --- > .../devicetree/bindings/mtd/sunxi-nand.txt | 46 ++++++++++++++++++++ > 1 file changed, 46 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mtd/sunxi-nand.txt > > diff --git a/Documentation/devicetree/bindings/mtd/sunxi-nand.txt b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt > new file mode 100644 > index 0000000..b0e55a3 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt > @@ -0,0 +1,46 @@ > +Allwinner NAND Flash Controller (NFC) > + > +Required properties: > +- compatible : "allwinner,sun4i-nand". > +- reg : shall contain registers location and length for data and reg. > +- interrupts : shall define the nand controller interrupt. > +- #address-cells: shall be set to 1. Encode the nand CS. > +- #size-cells : shall be set to 0. > +- clocks : shall reference nand controller clocks. > +- clock-names : nand controller internal clock names. Shall contain : > + * "ahb_clk" : AHB gating clock > + * "sclk" : nand controller clock > + > +Optional children nodes: > +Children nodes represent the available nand chips. > + > +Optional properties: For the controller or per nand chip? > +- onfi,nand-timing-mode : mandatory if the chip does not support the ONFI > + standard. Add to generic nand binding. > +- allwinner,rb : shall contain the native Ready/Busy ids. > + or > +- rb-gpios : shall contain the gpios used as R/B pins. Isn't allwinner,rb implied by a lack of rb-gpios property. Or no R/B pin is an option? If so, don't you need some fixed time delay properties like max erase time? rb-gpios could be added to the generic nand binding as well. Rob -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
