On Thu, Dec 22, 2016 at 02:32:42PM -0600, Rob Herring wrote:
> On Mon, Dec 19, 2016 at 01:15:52PM +0100, Jan Glauber wrote:
> > Add description of Cavium Octeon and ThunderX SOC device tree bindings.
> >
> > CC: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
> > CC: Rob Herring <robh+dt@xxxxxxxxxx>
> > CC: Mark Rutland <mark.rutland@xxxxxxx>
> > CC: devicetree@xxxxxxxxxxxxxxx
> >
> > Signed-off-by: Jan Glauber <jglauber@xxxxxxxxxx>
> > ---
> > .../devicetree/bindings/mmc/octeon-mmc.txt | 59 ++++++++++++++++++++++
>
> Perhaps cavium-mmc.txt would be more appropriate now.
Yes, forgot to rename it.
> > 1 file changed, 59 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/mmc/octeon-mmc.txt
> >
> > diff --git a/Documentation/devicetree/bindings/mmc/octeon-mmc.txt b/Documentation/devicetree/bindings/mmc/octeon-mmc.txt
> > new file mode 100644
> > index 0000000..aad02eb
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mmc/octeon-mmc.txt
> > @@ -0,0 +1,59 @@
> > +* Cavium Octeon & ThunderX MMC controller
> > +
> > +The highspeed MMC host controller on Caviums SoCs provides an interface
> > +for MMC and SD types of memory cards.
> > +
> > +Supported maximum speeds are the ones of the eMMC standard 4.41 as well
> > +as the speed of SD standard 4.0. Only 3.3 Volt is supported.
> > +
> > +Required properties:
> > + - compatible : should be one of:
> > + * "cavium,octeon-6130-mmc"
> > + * "cavium,octeon-6130-mmc-slot"
> > + * "cavium,octeon-7890-mmc"
> > + * "cavium,octeon-7890-mmc-slot"
> > + * "cavium,thunder-8190-mmc"
> > + * "cavium,thunder-8190-mmc-slot"
> > + * "cavium,thunder-8390-mmc"
> > + * "cavium,thunder-8390-mmc-slot"
> > + - reg : mmc controller base registers
>
> Following PCI addressing?
Yes for the host controller, for the child nodes we use reg as the
physical slot number. Maybe I should describe the child node properties
separately?
> > + - clocks : phandle
> > +
> > +Optional properties:
> > + - for cd, bus-width and additional generic mmc parameters
> > + please refer to mmc.txt within this directory
> > + - "cavium,cmd-clk-skew" : number of coprocessor clocks before sampling command
> > + - "cavium,dat-clk-skew" : number of coprocessor clocks before sampling data
> > +
> > +Deprecated properties:
> > +- spi-max-frequency : use max-frequency instead
> > +- "cavium,bus-max-width" : use bus-width instead
>
> Drop the quotes.
OK, droped them also above.
> > +
> > +Examples:
> > + - Within .dtsi:
>
> Don't show the division between files in the example.
OK.
> > + mmc_1_4: mmc@1,4 {
> > + compatible = "cavium,thunder-8390-mmc";
> > + reg = <0x0c00 0 0 0 0>; /* DEVFN = 0x0c (1:4) */
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + clocks = <&sclk>;
> > + };
> > +
> > + - Within dts:
> > + mmc-slot@0 {
>
> Need to show this is a child node.
OK.
> > + compatible = "cavium,thunder-8390-mmc-slot";
> > + reg = <0>;
> > + voltage-ranges = <3300 3300>;
> > + max-frequency = <42000000>;
> > + bus-width = <4>;
> > + cap-sd-highspeed;
> > + };
> > + mmc-slot@1 {
> > + compatible = "cavium,thunder-8390-mmc-slot";
> > + reg = <1>;
> > + voltage-ranges = <3300 3300>;
> > + max-frequency = <42000000>;
> > + bus-width = <8>;
> > + cap-mmc-highspeed;
> > + non-removable;
> > + };
> > --
> > 2.9.0.rc0.21.g7777322
> >
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