12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879 |
- The device node for Mediatek USB3 DRD controller
- Required properties:
- - compatible : should be "mediatek,<soc-model>-mtu3", "mediatek,mtu3",
- soc-model is the name of SoC, such as mt8512 etc,
- when using "mediatek,mtu3" compatible string, you need SoC specific
- ones in addition, one of:
- - "mediatek,mt8512-mtu3"
- - reg : specifies physical base address and size of the registers
- - reg-names: should be
- - "ippc" : IP Port Control
- - power-domains : a phandle to USB power domain node to control USB's MTCMOS
- - 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", "dma_ck" and "xhci_ck";
- - phys : list of all the USB PHYs on this HCD
- - #address-cells, #size-cells : used for sub-nodes with 'reg' property
- - ranges : allows valid 1:1 translation between child's address space and
- parent's address space
- Optional properties:
- - vusb33-supply : regulator of USB AVDD3.3v
- - vbus-supply : regulator of VBUS 5v, needed when supports host mode.
- Sub-nodes:
- Required properties:
- - compatible : should be "mediatek,ssusb"
- - reg : specifies physical base address and size of the registers
- - reg-names: should be
- - "mac" : SSUSB MAC, include xHCI and device
- - interrupts : interrupt used by xHCI or device
- - dr_mode : should be one of "host" or "peripheral",
- see : usb/generic.txt
- Optional properties:
- - pinctrl-names : a pinctrl state named "default" is optional
- - pinctrl-0 : pin control group
- See: pinctrl/pinctrl-bindings.txt
- - device mode:
- - maximum-speed : valid arguments are "full-speed", "high-speed",
- "super-speed" and "super-speed-plus",
- see: usb/generic.txt
- - mediatek,force-vbus : force vbus as valid by SW
- - host mode (dr_mode is "host"):
- - mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0,
- bit1 for u3port1, ... etc;
- Example:
- usb3: usb@11213e00 {
- compatible = "mediatek,mt8512-mtu3", "mediatek,mtu3";
- reg = <0x11213e00 0x0100>;
- reg-names = "ippc";
- phys = <&u2port0 PHY_TYPE_USB2>, <&u2port1 PHY_TYPE_USB2>;
- power-domains = <&scpsys MT8512_POWER_DOMAIN_USB>;
- clocks = <&infracfg CLK_INFRA_USB_SYS>,
- <&topckgen CLK_TOP_SSUSB_TOP_CK_EN>,
- <&infracfg CLK_INFRA_ICUSB>;
- clock-names = "sys_ck", "ref_ck", "mcu_ck";
- vusb33-supply = <reg_3p3v>;
- vbus-supply = <&usb_p0_vbus>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
- status = "disabled";
- ssusb: usb@11210000 {
- compatible = "mediatek,ssusb";
- reg = <0x11210000 0x3e00>;
- interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_LOW>;
- reg-names = "mac";
- dr_mode = "peripheral";
- maximum-speed = "high-speed";
- status = "disabled";
- };
- };
|