From mboxrd@z Thu Jan 1 00:00:00 1970 From: abrestic@chromium.org (Andrew Bresticker) Date: Mon, 4 May 2015 10:36:37 -0700 Subject: [PATCH v8 4/9] mfd: Add binding document for NVIDIA Tegra XUSB In-Reply-To: <1430761002-9327-1-git-send-email-abrestic@chromium.org> References: <1430761002-9327-1-git-send-email-abrestic@chromium.org> Message-ID: <1430761002-9327-5-git-send-email-abrestic@chromium.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add a binding document for the XUSB host complex on NVIDIA Tegra124 and later SoCs. The XUSB host complex includes a mailbox for communication with the XUSB micro-controller and an xHCI host-controller. Signed-off-by: Andrew Bresticker Cc: Rob Herring Cc: Pawel Moll Cc: Mark Rutland Cc: Ian Campbell Cc: Kumar Gala Cc: Samuel Ortiz Cc: Lee Jones --- Changes from v7: - Move non-shared resources into child nodes. New for v7. --- .../bindings/mfd/nvidia,tegra124-xusb.txt | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/nvidia,tegra124-xusb.txt diff --git a/Documentation/devicetree/bindings/mfd/nvidia,tegra124-xusb.txt b/Documentation/devicetree/bindings/mfd/nvidia,tegra124-xusb.txt new file mode 100644 index 0000000..bc50110 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/nvidia,tegra124-xusb.txt @@ -0,0 +1,37 @@ +NVIDIA Tegra XUSB host copmlex +============================== + +The XUSB host complex on Tegra124 and later SoCs contains an xHCI host +controller and a mailbox for communication with the XUSB micro-controller. + +Required properties: +-------------------- + - compatible: For Tegra124, must contain "nvidia,tegra124-xusb". + Otherwise, must contain '"nvidia,-xusb", "nvidia,tegra124-xusb"' + where is tegra132. + - reg: Must contain the base and length of the XUSB FPCI registers. + - ranges: Bus address mapping for the XUSB block. Can be empty since the + mapping is 1:1. + - #address-cells: Must be 2. + - #size-cells: Must be 2. + +Example: +-------- + usb at 0,70098000 { + compatible = "nvidia,tegra124-xusb"; + reg = <0x0 0x70098000 0x0 0x1000>; + ranges; + + #address-cells = <2>; + #size-cells = <2>; + + usb-host at 0,70090000 { + compatible = "nvidia,tegra124-xhci"; + ... + }; + + mailbox { + compatible = "nvidia,tegra124-xusb-mbox"; + ... + }; + }; -- 2.2.0.rc0.207.ga3a616c