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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2020 MediaTek
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/mediatek,mtk-xhci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek USB3 xHCI Device Tree Bindings
+
+maintainers:
+ - Chunfeng Yun <chunfeng.yun@mediatek.com>
+
+allOf:
+ - $ref: "usb-xhci.yaml"
+
+description: |
+ There are two scenarios:
+ case 1: only supports xHCI driver;
+ case 2: supports dual-role mode, and the host is based on xHCI driver.
+
+properties:
+ # common properties for both case 1 and case 2
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt2701-xhci
+ - mediatek,mt2712-xhci
+ - mediatek,mt7622-xhci
+ - mediatek,mt7623-xhci
+ - mediatek,mt7629-xhci
+ - mediatek,mt8173-xhci
+ - mediatek,mt8183-xhci
+ - const: mediatek,mtk-xhci
+
+ reg:
+ minItems: 1
+ items:
+ - description: the registers of xHCI MAC
+ - description: the registers of IP Port Control
+
+ reg-names:
+ minItems: 1
+ items:
+ - const: mac
+ - const: ippc # optional, only needed for case 1.
+
+ interrupts:
+ maxItems: 1
+
+ power-domains:
+ description: A phandle to USB power domain node to control USB's MTCMOS
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ items:
+ - description: Controller clock used by normal mode
+ - description: Reference clock used by low power mode etc
+ - description: Mcu bus clock for register access
+ - description: DMA bus clock for data transfer
+ - description: controller clock
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: sys_ck # required, the following ones are optional
+ - const: ref_ck
+ - const: mcu_ck
+ - const: dma_ck
+ - const: xhci_ck
+
+ assigned-clocks:
+ minItems: 1
+ maxItems: 5
+
+ assigned-clock-parents:
+ minItems: 1
+ maxItems: 5
+
+ phys:
+ description:
+ List of all PHYs used on this HCD, it's better to keep PHYs in order
+ as the hardware layout
+ minItems: 1
+ items:
+ - description: USB2/HS PHY # required, others are optional
+ - description: USB3/SS(P) PHY
+ - description: USB2/HS PHY
+ - description: USB3/SS(P) PHY
+ - description: USB2/HS PHY
+ - description: USB3/SS(P) PHY
+ - description: USB2/HS PHY
+ - description: USB3/SS(P) PHY
+ - description: USB2/HS PHY
+
+ vusb33-supply:
+ description: Regulator of USB AVDD3.3v
+
+ vbus-supply:
+ description: Regulator of USB VBUS5v
+
+ usb3-lpm-capable:
+ description: supports USB3.0 LPM
+ type: boolean
+
+ imod-interval-ns:
+ description:
+ Interrupt moderation interval value, it is 8 times as much as that
+ defined in the xHCI spec on MTK's controller.
+ default: 5000
+
+ # the following properties are only used for case 1
+ wakeup-source:
+ description: enable USB remote wakeup, see power/wakeup-source.txt
+ type: boolean
+
+ mediatek,syscon-wakeup:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ maxItems: 1
+ description:
+ A phandle to syscon used to access the register of the USB wakeup glue
+ layer between xHCI and SPM, the field should always be 3 cells long.
+ items:
+ items:
+ - description:
+ The first cell represents a phandle to syscon
+ - description:
+ The second cell represents the register base address of the glue
+ layer in syscon
+ - description:
+ The third cell represents the hardware version of the glue layer,
+ 1 is used by mt8173 etc, 2 is used by mt2712 etc
+ enum: [1, 2]
+
+ mediatek,u3p-dis-msk:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: The mask to disable u3ports, bit0 for u3port0,
+ bit1 for u3port1, ... etc
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "@[0-9a-f]{1}$":
+ type: object
+ description: The hard wired USB devices.
+
+dependencies:
+ wakeup-source: [ 'mediatek,syscon-wakeup' ]
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8173-clk.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/phy/phy.h>
+ #include <dt-bindings/power/mt8173-power.h>
+
+ usb@11270000 {
+ compatible = "mediatek,mt8173-xhci", "mediatek,mtk-xhci";
+ reg = <0x11270000 0x1000>, <0x11280700 0x0100>;
+ reg-names = "mac", "ippc";
+ 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";
+ phys = <&u3port0 PHY_TYPE_USB3>, <&u2port1 PHY_TYPE_USB2>;
+ vusb33-supply = <&mt6397_vusb_reg>;
+ vbus-supply = <&usb_p1_vbus>;
+ imod-interval-ns = <10000>;
+ mediatek,syscon-wakeup = <&pericfg 0x400 1>;
+ wakeup-source;
+ usb3-lpm-capable;
+ };
+...