216 lines
6.0 KiB
YAML
216 lines
6.0 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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# Copyright (c) 2020 MediaTek
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/usb/mediatek,mtk-xhci.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: MediaTek USB3 xHCI
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maintainers:
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- Chunfeng Yun <chunfeng.yun@mediatek.com>
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allOf:
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- $ref: usb-xhci.yaml
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description: |
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There are two scenarios:
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case 1: only supports xHCI driver;
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case 2: supports dual-role mode, and the host is based on xHCI driver.
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properties:
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# common properties for both case 1 and case 2
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compatible:
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items:
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- enum:
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- mediatek,mt2701-xhci
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- mediatek,mt2712-xhci
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- mediatek,mt7622-xhci
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- mediatek,mt7623-xhci
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- mediatek,mt7629-xhci
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- mediatek,mt7986-xhci
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- mediatek,mt8173-xhci
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- mediatek,mt8183-xhci
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- mediatek,mt8186-xhci
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- mediatek,mt8188-xhci
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- mediatek,mt8192-xhci
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- mediatek,mt8195-xhci
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- mediatek,mt8365-xhci
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- const: mediatek,mtk-xhci
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reg:
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minItems: 1
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items:
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- description: the registers of xHCI MAC
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- description: the registers of IP Port Control
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reg-names:
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minItems: 1
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items:
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- const: mac
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- const: ippc # optional, only needed for case 1.
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interrupts:
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description:
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use "interrupts-extended" when the interrupts are connected to the
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separate interrupt controllers
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minItems: 1
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items:
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- description: xHCI host controller interrupt
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- description: optional, wakeup interrupt used to support runtime PM
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interrupt-names:
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minItems: 1
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items:
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- const: host
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- const: wakeup
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power-domains:
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description: A phandle to USB power domain node to control USB's MTCMOS
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maxItems: 1
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clocks:
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minItems: 1
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items:
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- description: Controller clock used by normal mode
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- description: Reference clock used by low power mode etc
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- description: Mcu bus clock for register access
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- description: DMA bus clock for data transfer
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- description: controller clock
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- description: frame count clock
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clock-names:
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minItems: 1
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items:
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- const: sys_ck # required, the following ones are optional
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- const: ref_ck
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- const: mcu_ck
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- const: dma_ck
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- const: xhci_ck
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- const: frmcnt_ck
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phys:
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description:
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List of all PHYs used on this HCD, it's better to keep PHYs in order
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as the hardware layout
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minItems: 1
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items:
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- description: USB2/HS PHY # required, others are optional
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- description: USB3/SS(P) PHY
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- description: USB2/HS PHY
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- description: USB3/SS(P) PHY
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- description: USB2/HS PHY
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- description: USB3/SS(P) PHY
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- description: USB2/HS PHY
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- description: USB3/SS(P) PHY
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- description: USB2/HS PHY
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vusb33-supply:
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description: Regulator of USB AVDD3.3v
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vbus-supply:
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description: Regulator of USB VBUS5v
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resets:
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maxItems: 1
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usb3-lpm-capable: true
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usb2-lpm-disable: true
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imod-interval-ns:
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description:
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Interrupt moderation interval value, it is 8 times as much as that
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defined in the xHCI spec on MTK's controller.
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default: 5000
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# the following properties are only used for case 1
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wakeup-source:
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description: enable USB remote wakeup, see power/wakeup-source.txt
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type: boolean
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mediatek,syscon-wakeup:
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$ref: /schemas/types.yaml#/definitions/phandle-array
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maxItems: 1
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description:
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A phandle to syscon used to access the register of the USB wakeup glue
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layer between xHCI and SPM, the field should always be 3 cells long.
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items:
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items:
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- description:
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The first cell represents a phandle to syscon
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- description:
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The second cell represents the register base address of the glue
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layer in syscon
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- description: |
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The third cell represents the hardware version of the glue layer,
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1 - used by mt8173 etc, revision 1 without following IPM rule;
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2 - used by mt2712 etc, revision 2 following IPM rule;
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101 - used by mt8183, specific 1.01;
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102 - used by mt8192, specific 1.02;
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103 - used by mt8195, IP0, specific 1.03;
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104 - used by mt8195, IP1, specific 1.04;
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105 - used by mt8195, IP2, specific 1.05;
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106 - used by mt8195, IP3, specific 1.06;
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enum: [1, 2, 101, 102, 103, 104, 105, 106]
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mediatek,u3p-dis-msk:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: The mask to disable u3ports, bit0 for u3port0,
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bit1 for u3port1, ... etc
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mediatek,u2p-dis-msk:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: The mask to disable u2ports, bit0 for u2port0,
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bit1 for u2port1, ... etc
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"#address-cells":
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const: 1
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"#size-cells":
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const: 0
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patternProperties:
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"@[0-9a-f]{1}$":
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type: object
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description: The hard wired USB devices.
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dependencies:
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wakeup-source: [ 'mediatek,syscon-wakeup' ]
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required:
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- compatible
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- reg
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- reg-names
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- interrupts
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- clocks
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- clock-names
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/mt8173-clk.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/phy/phy.h>
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#include <dt-bindings/power/mt8173-power.h>
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usb@11270000 {
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compatible = "mediatek,mt8173-xhci", "mediatek,mtk-xhci";
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reg = <0x11270000 0x1000>, <0x11280700 0x0100>;
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reg-names = "mac", "ippc";
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interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_LOW>;
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power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
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clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>;
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clock-names = "sys_ck", "ref_ck";
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phys = <&u3port0 PHY_TYPE_USB3>, <&u2port1 PHY_TYPE_USB2>;
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vusb33-supply = <&mt6397_vusb_reg>;
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vbus-supply = <&usb_p1_vbus>;
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imod-interval-ns = <10000>;
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mediatek,syscon-wakeup = <&pericfg 0x400 1>;
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wakeup-source;
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usb3-lpm-capable;
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};
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...
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