| MediaTek xHCI |
| |
| The device node for USB3 host controller on MediaTek SoCs. |
| |
| Required properties: |
| - compatible : should be "mediatek,mtk-xhci" |
| - reg : specifies physical base address and size of the registers |
| - reg-names: should be "mac" for xHCI MAC and "ippc" for IP port control |
| - 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": controller clock used by normal mode, |
| the following ones are optional: |
| "ref_ck": reference clock used by low power mode etc, |
| "mcu_ck": mcu_bus clock for register access, |
| "dma_ck": dma_bus clock for data transfer by DMA, |
| "xhci_ck": controller clock |
| |
| - phys : list of all the USB PHYs on this HCD |
| - phy-names: name specifier for the USB PHY |
| |
| Optional properties: |
| - vbus-supply : reference to the VBUS regulator; |
| - mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0, |
| bit1 for u3port1, ... etc; |
| - mediatek,u2p-dis-msk : mask to disable u2ports, bit0 for u2port0, |
| bit1 for u2port1, ... etc; |
| |
| Example: |
| xhci: usb@1a0c0000 { |
| compatible = "mediatek,mt7629-xhci", "mediatek,mtk-xhci"; |
| reg = <0x1a0c0000 0x1000>, <0x1a0c3e00 0x0100>; |
| reg-names = "mac", "ippc"; |
| power-domains = <&scpsys MT7629_POWER_DOMAIN_HIF1>; |
| clocks = <&ssusbsys CLK_SSUSB_SYS_EN>, <&ssusbsys CLK_SSUSB_REF_EN>, |
| <&ssusbsys CLK_SSUSB_MCU_EN>, <&ssusbsys CLK_SSUSB_DMA_EN>; |
| clock-names = "sys_ck", "ref_ck", "mcu_ck", "dma_ck"; |
| phys = <&u2port0 PHY_TYPE_USB2>, <&u3port0 PHY_TYPE_USB3>; |
| status = "disabled"; |
| }; |