On Wed, Nov 18, 2015 at 01:13:20AM +0200, Aaro Koskinen wrote: > Document device-tree bindings for the USB controller on older > OCTEON SOCs (OCTEON, OCTEON+). > > Signed-off-by: Aaro Koskinen <aaro.koskinen@xxxxxx> Acked-by: Rob Herring <robh@xxxxxxxxxx> > --- > > v2: Deprecate "refclk-frequency" and "refclk-type". > > v1: See http://www.spinics.net/lists/devicetree/msg78051.html > > .../devicetree/bindings/usb/octeon-usb.txt | 62 ++++++++++++++++++++++ > 1 file changed, 62 insertions(+) > create mode 100644 Documentation/devicetree/bindings/usb/octeon-usb.txt > > diff --git a/Documentation/devicetree/bindings/usb/octeon-usb.txt b/Documentation/devicetree/bindings/usb/octeon-usb.txt > new file mode 100644 > index 0000000..205c8d2 > --- /dev/null > +++ b/Documentation/devicetree/bindings/usb/octeon-usb.txt > @@ -0,0 +1,62 @@ > +OCTEON/OCTEON+ USB BLOCK > + > +1) Main node > + > + Required properties: > + > + - compatible: must be "cavium,octeon-5750-usbn" > + > + - reg: specifies the physical base address of the USBN block and > + the length of the memory mapped region. > + > + - #address-cells: specifies the number of cells needed to encode an > + address. The value must be 2. > + > + - #size-cells: specifies the number of cells used to represent the size > + of an address. The value must be 2. > + > + - ranges: specifies the translation between child address space and parent > + address space. > + > + - clock-frequency: speed of the USB reference clock. Allowed values are > + 12000000, 24000000 or 48000000. > + > + - cavium,refclk-type: type of the USB reference clock. Allowed values are > + "crystal" or "external". > + > + - refclk-frequency: deprecated, use "clock-frequency". > + > + - refclk-type: deprecated, use "cavium,refclk-type". > + > +2) Child node > + > + The main node must have one child node which describes the built-in > + USB controller. > + > + Required properties: > + > + - compatible: must be "cavium,octeon-5750-usbc" > + > + - reg: specifies the physical base address of the USBC block and > + the length of the memory mapped region. > + > + - interrupts: specifies the interrupt number for the USB controller. > + > +3) Example: > + > + usbn: usbn@1180068000000 { > + compatible = "cavium,octeon-5750-usbn"; > + reg = <0x11800 0x68000000 0x0 0x1000>; > + ranges; /* Direct mapping */ > + #address-cells = <2>; > + #size-cells = <2>; > + clock-frequency = <12000000>; > + cavium,refclk-type = "crystal"; > + > + usbc@16f0010000000 { > + compatible = "cavium,octeon-5750-usbc"; > + reg = <0x16f00 0x10000000 0x0 0x80000>; > + interrupts = <0 56>; > + }; > + }; > + > -- > 2.4.0 > -- 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
