Re: [RFC PATCH 1/2] dt-bindings: mtd: Add Cavium SOCs NAND bindings

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On Mon, Apr 03, 2017 at 08:29:37AM -0500, Rob Herring wrote:
> On Mon, Mar 27, 2017 at 06:05:23PM +0200, Jan Glauber wrote:
> > Add device tree binding description for Cavium SOC nand flash controller.
> > 
> > CC: Rob Herring <robh+dt@xxxxxxxxxx>
> > CC: Mark Rutland <mark.rutland@xxxxxxx>
> > CC: devicetree@xxxxxxxxxxxxxxx
> > 
> > Signed-off-by: Jan Glauber <jglauber@xxxxxxxxxx>
> > ---
> >  .../devicetree/bindings/mtd/cavium_nand.txt        | 32 ++++++++++++++++++++++
> >  1 file changed, 32 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/mtd/cavium_nand.txt
> > 
> > diff --git a/Documentation/devicetree/bindings/mtd/cavium_nand.txt b/Documentation/devicetree/bindings/mtd/cavium_nand.txt
> > new file mode 100644
> > index 0000000..4698d1f
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mtd/cavium_nand.txt
> > @@ -0,0 +1,32 @@
> > +* Cavium NAND controller
> > +
> > +Required properties:
> > +
> > +- compatible:		should be "cavium,cn8xxx-nand"
> 
> Don't use wildcards in compatible strings. For PCI devices, this should 
> be based on the PCI vendor and device IDs.
>

Is there a syntax for compatible PCI devices? I'm afraid I've not seen
this yet, can you give an example?

Most of Cavium's devices are PCI devices, we just added the compatible
as convenience and usually it is not parsed.

thanks,
Jan

> > +- reg:			PCI devfn
> > +- clocks:		must contain system clock
> > +- #address-cells:	<1>
> > +- #size-cells:		<0>
> > +
> > +The nand flash controller may contain up to 8 subnodes representing
> > +NAND flash chips. Their properties are as follows.
> > +
> > +Required properties:
> > +- compatible:		should be "cavium,nandcs"
> > +- reg:			a single integer representing the chip-select number
> > +- nand-ecc-mode:	see nand.txt
> > +
> > +Example:
> > +
> > +nfc: nand@b,0 {
> > +	compatible = "cavium,cn8xxx-nand";
> > +	reg = <0x5800 0 0 0 0>;
> > +	clocks = <&sclk>;
> > +	#address-cells = <1>;
> > +	#size-cells = <0>;
> > +
> > +	nand@1 {
> > +		compatible = "cavium,nandcs";
> > +		reg = <1>;
> > +		nand-ecc-mode = "on-die";
> > +};
> > -- 
> > 2.9.0.rc0.21.g7777322
> > 
--
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



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux