FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/usb/mediatek,mtu3.txt

     The device node for Mediatek USB3.0 DRD controller
     
     Required properties:
      - compatible : should be "mediatek,<soc-model>-mtu3", "mediatek,mtu3",
             soc-model is the name of SoC, such as mt8173, mt2712 etc,
             when using "mediatek,mtu3" compatible string, you need SoC specific
             ones in addition, one of:
             - "mediatek,mt8173-mtu3"
      - reg : specifies physical base address and size of the registers
     - reg-names: should be "mac" for device IP and "ippc" for IP port control
     - interrupts : interrupt used by the device IP
     - power-domains : a phandle to USB power domain node to control USB's
            mtcmos
     - vusb33-supply : regulator of USB avdd3.3v
     - clocks : a list of phandle + clock-specifier pairs, one for each
            entry in clock-names
     - clock-names : must contain "sys_ck" for clock of controller,
            the following clocks are optional:
            "ref_ck", "mcu_ck" and "dma_ck";
     - phys : see usb-hcd.yaml in the current directory
     - dr_mode : should be one of "host", "peripheral" or "otg",
            refer to usb/generic.txt
    
    Optional properties:
     - #address-cells, #size-cells : should be '2' if the device has sub-nodes
            with 'reg' property
     - ranges : allows valid 1:1 translation between child's address space and
            parent's address space
     - extcon : external connector for vbus and idpin changes detection, needed
            when supports dual-role mode.
            it's considered valid for compatibility reasons, not allowed for
            new bindings, and use "usb-role-switch" property instead.
     - vbus-supply : reference to the VBUS regulator, needed when supports
            dual-role mode.
            it's considered valid for compatibility reasons, not allowed for
            new bindings, and put into a usb-connector node.
            see connector/usb-connector.yaml.
     - pinctrl-names : a pinctrl state named "default" is optional, and need be
            defined if auto drd switch is enabled, that means the property dr_mode
            is set as "otg", and meanwhile the property "mediatek,enable-manual-drd"
            is not set.
     - pinctrl-0 : pin control group
            See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
    
     - maximum-speed : valid arguments are "super-speed", "high-speed" and
            "full-speed"; refer to usb/generic.txt
     - usb-role-switch : use USB Role Switch to support dual-role switch, but
            not extcon; see usb/generic.txt.
     - enable-manual-drd : supports manual dual-role switch via debugfs; usually
            used when receptacle is TYPE-A and also wants to support dual-role
            mode.
     - wakeup-source: enable USB remote wakeup of host mode.
     - mediatek,syscon-wakeup : phandle to syscon used to access the register
            of the USB wakeup glue layer between SSUSB and SPM; it depends on
            "wakeup-source", and has two arguments:
            - the first one : register base address of the glue layer in syscon;
            - the second one : hardware version of the glue layer
                    - 1 : used by mt8173 etc
                    - 2 : used by mt2712 etc
     - mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0,
            bit1 for u3port1, ... etc;
    
    additionally the properties from usb-hcd.yaml (in the current directory) are
    supported.
    
    Sub-nodes:
    The xhci should be added as subnode to mtu3 as shown in the following example
    if host mode is enabled. The DT binding details of xhci can be found in:
    Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
    
    The port would be added as subnode if use "usb-role-switch" property.
            see graph.txt
    
    Example:
    ssusb: usb@11271000 {
            compatible = "mediatek,mt8173-mtu3";
            reg = <0 0x11271000 0 0x3000>,
                  <0 0x11280700 0 0x0100>;
            reg-names = "mac", "ippc";
            interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_LOW>;
            phys = <&phy_port0 PHY_TYPE_USB3>,
                   <&phy_port1 PHY_TYPE_USB2>;
            power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
            clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>,
                     <&pericfg CLK_PERI_USB0>,
                     <&pericfg CLK_PERI_USB1>;
            clock-names = "sys_ck", "ref_ck";
            vusb33-supply = <&mt6397_vusb_reg>;
            vbus-supply = <&usb_p0_vbus>;
            extcon = <&extcon_usb>;
            dr_mode = "otg";
            wakeup-source;
            mediatek,syscon-wakeup = <&pericfg 0x400 1>;
            #address-cells = <2>;
            #size-cells = <2>;
            ranges;
    
            usb_host: xhci@11270000 {
                    compatible = "mediatek,mt8173-xhci";
                   reg = <0 0x11270000 0 0x1000>;
                   reg-names = "mac";
                   interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_LOW>;
                   power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
                   clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>;
                   clock-names = "sys_ck", "ref_ck";
                   vusb33-supply = <&mt6397_vusb_reg>;
           };
   };

Cache object: 40ec216530e8fcc5f723be7c7c5eef7f