1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
# 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
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,mt7986-xhci
- mediatek,mt8173-xhci
- mediatek,mt8183-xhci
- mediatek,mt8186-xhci
- mediatek,mt8188-xhci
- mediatek,mt8192-xhci
- mediatek,mt8195-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:
description:
use "interrupts-extended" when the interrupts are connected to the
separate interrupt controllers
minItems: 1
items:
- description: xHCI host controller interrupt
- description: optional, wakeup interrupt used to support runtime PM
interrupt-names:
minItems: 1
items:
- const: host
- const: wakeup
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
resets:
maxItems: 1
usb3-lpm-capable: true
usb2-lpm-disable: true
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 - used by mt8173 etc, revision 1 without following IPM rule;
2 - used by mt2712 etc, revision 2 following IPM rule;
101 - used by mt8183, specific 1.01;
102 - used by mt8192, specific 1.02;
103 - used by mt8195, IP0, specific 1.03;
104 - used by mt8195, IP1, specific 1.04;
105 - used by mt8195, IP2, specific 1.05;
106 - used by mt8195, IP3, specific 1.06;
enum: [1, 2, 101, 102, 103, 104, 105, 106]
mediatek,u3p-dis-msk:
$ref: /schemas/types.yaml#/definitions/uint32
description: The mask to disable u3ports, bit0 for u3port0,
bit1 for u3port1, ... etc
mediatek,u2p-dis-msk:
$ref: /schemas/types.yaml#/definitions/uint32
description: The mask to disable u2ports, bit0 for u2port0,
bit1 for u2port1, ... etc
"#address-cells":
const: 1
"#size-cells":
const: 0
patternProperties:
"@[0-9a-f]{1}$":
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;
};
...
|
