From mboxrd@z Thu Jan 1 00:00:00 1970 From: Aaro Koskinen Subject: [PATCH] Documentation/devicetree: document OCTEON USB bindings Date: Thu, 30 Apr 2015 22:44:00 +0300 Message-ID: <1430423040-2088-1-git-send-email-aaro.koskinen@iki.fi> Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Rob Herring , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: David Daney , Aaro Koskinen List-Id: devicetree@vger.kernel.org Document device-tree bindings for the USB controller on older OCTEON SOCs (OCTEON, OCTEON+). Signed-off-by: Aaro Koskinen --- .../devicetree/bindings/usb/octeon-usb.txt | 58 ++++++++++++++++++++++ 1 file changed, 58 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..fd121c4 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/octeon-usb.txt @@ -0,0 +1,58 @@ +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. + + - refclk-frequency: speed of the USB reference clock. Allowed values are + 12000000, 24000000 or 48000000. + + - refclk-type: type of the USB reference clock. Allowed values are + "crystal" or "external". + +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>; + refclk-frequency = <12000000>; + refclk-type = "crystal"; + + usbc@16f0010000000 { + compatible = "cavium,octeon-5750-usbc"; + reg = <0x16f00 0x10000000 0x0 0x80000>; + interrupts = <0 56>; + }; + }; + -- 2.3.3 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html