ROCKCHIP USB2.0 PHY WITH NANENG IP BLOCK
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Required properties (phy (parent) node):
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- compatible : should be one of the listed compatibles:
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* "rockchip,rv1126-usb2phy"
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- reg : the address offset of grf for usb-phy configuration.
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- rockchip,grf : phandle to the syscon managing the "general register files"
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- clocks : phandle + phy specifier pair, for the input clocks of phy.
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- clock-names : input clocks name of phy.
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- resets : phandle + reset specifier pairs.
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- reset-names : reset names of phy.
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- #clock-cells : should be 0.
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- clock-output-names : specify the 480m output clock name.
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Optional properties:
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- assigned-clocks : phandle of usb 480m clock.
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- assigned-clock-parents : parent of usb 480m clock, select between
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usb-phy output 480m and xin24m.
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Refer to clk/clock-bindings.txt for generic clock
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consumer properties.
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- vbus-supply : regulator phandle for vbus power source.
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- wakeup-source : enable bvalid irq and linestate wakeup when suspend.
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only work when suspend wakeup-config is not work.
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- vup-gpios : gpio phandle for pull-up resistor on DM. this property
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is specially provided to RV1126/RV1109 in order to
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increase the amplitude of chirpK and successfully
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complete high speed handshake.
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Required nodes : a sub-node is required for each port the phy provides.
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The sub-node name is used to identify host or otg port,
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and shall be the following entries:
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* "otg-port" : the name of otg port.
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* "host-port" : the name of host port.
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Required properties (port (child) node):
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- #phy-cells : must be 0. See ./phy-bindings.txt for details.
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- interrupts : specify an interrupt for each entry in interrupt-names.
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- interrupt-names : a list which should be one of the following cases:
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Regular case:
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* "otg-id" : for the otg id interrupt.
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* "otg-bvalid" : for the otg vbus interrupt.
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* "linestate" : for the host/otg linestate interrupt.
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* "disconnect" : for the host/otg disconnect interrupt.
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Optional properties:
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- phy-supply : phandle to a regulator that provides power to VBUS.
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See ./phy-bindings.txt for details.
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- rockchip,vbus-always-on: when set, indicates that the otg vbus
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is always powered on.
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Example:
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u2phy1: usb2-phy@ff4c8000 {
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compatible = "rockchip,rv1126-usb2phy";
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reg = <0xff4c8000 0x8000>;
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rockchip,grf = <&grf>;
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clocks = <&pmucru CLK_USBPHY_HOST_REF>, <&cru PCLK_USBPHY_HOST>;
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clock-names = "phyclk", "pclk";
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assigned-clocks = <&cru USB480M>;
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assigned-clock-parents = <&u2phy1>;
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resets = <&cru SRST_USBPHYPOR_HOST>, <&cru SRST_USBPHY_HOST_P>;
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reset-names = "u2phy", "u2phy-apb";
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#clock-cells = <0>;
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clock-output-names = "usb480m_phy";
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status = "disabled";
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u2phy_host: host-port {
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#phy-cells = <0>;
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interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-names = "linestate", "disconnect";
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status = "disabled";
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};
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};
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