tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/phy/phy-stm32-usbphyc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: STMicroelectronics STM32 USB HS PHY controller binding
8
9description:
10
11 The STM32 USBPHYC block contains a dual port High Speed UTMI+ PHY and a UTMI
12 switch. It controls PHY configuration and status, and the UTMI+ switch that
13 selects either OTG or HOST controller for the second PHY port. It also sets
14 PLL configuration.
15
16 USBPHYC
17 |_ PLL
18 |
19 |_ PHY port#1 _________________ HOST controller
20 | __ |
21 | / 1|________________|
22 |_ PHY port#2 ----| |________________
23 | \_0| |
24 |_ UTMI switch_______| OTG controller
25
26maintainers:
27 - Amelie Delaunay <amelie.delaunay@st.com>
28
29properties:
30 compatible:
31 const: st,stm32mp1-usbphyc
32
33 reg:
34 maxItems: 1
35
36 clocks:
37 maxItems: 1
38
39 resets:
40 maxItems: 1
41
42 "#address-cells":
43 const: 1
44
45 "#size-cells":
46 const: 0
47
48 vdda1v1-supply:
49 description: regulator providing 1V1 power supply to the PLL block
50
51 vdda1v8-supply:
52 description: regulator providing 1V8 power supply to the PLL block
53
54 '#clock-cells':
55 description: number of clock cells for ck_usbo_48m consumer
56 const: 0
57
58#Required child nodes:
59
60patternProperties:
61 "^usb-phy@[0|1]$":
62 type: object
63 description:
64 Each port the controller provides must be represented as a sub-node.
65
66 properties:
67 reg:
68 description: phy port index.
69 maxItems: 1
70
71 phy-supply:
72 description: regulator providing 3V3 power supply to the PHY.
73
74 "#phy-cells":
75 enum: [ 0x0, 0x1 ]
76
77 connector:
78 type: object
79 allOf:
80 - $ref: ../connector/usb-connector.yaml
81 properties:
82 vbus-supply: true
83
84 allOf:
85 - if:
86 properties:
87 reg:
88 const: 0
89 then:
90 properties:
91 "#phy-cells":
92 const: 0
93 else:
94 properties:
95 "#phy-cells":
96 const: 1
97 description:
98 The value is used to select UTMI switch output.
99 0 for OTG controller and 1 for Host controller.
100
101 required:
102 - reg
103 - phy-supply
104 - "#phy-cells"
105
106 additionalProperties: false
107
108required:
109 - compatible
110 - reg
111 - clocks
112 - "#address-cells"
113 - "#size-cells"
114 - vdda1v1-supply
115 - vdda1v8-supply
116 - usb-phy@0
117 - usb-phy@1
118
119additionalProperties: false
120
121examples:
122 - |
123 #include <dt-bindings/clock/stm32mp1-clks.h>
124 #include <dt-bindings/reset/stm32mp1-resets.h>
125 usbphyc: usbphyc@5a006000 {
126 compatible = "st,stm32mp1-usbphyc";
127 reg = <0x5a006000 0x1000>;
128 clocks = <&rcc USBPHY_K>;
129 resets = <&rcc USBPHY_R>;
130 vdda1v1-supply = <®11>;
131 vdda1v8-supply = <®18>;
132 #address-cells = <1>;
133 #size-cells = <0>;
134 #clock-cells = <0>;
135
136 usbphyc_port0: usb-phy@0 {
137 reg = <0>;
138 phy-supply = <&vdd_usb>;
139 #phy-cells = <0>;
140 connector {
141 compatible = "usb-a-connector";
142 vbus-supply = <&vbus_sw>;
143 };
144 };
145
146 usbphyc_port1: usb-phy@1 {
147 reg = <1>;
148 phy-supply = <&vdd_usb>;
149 #phy-cells = <1>;
150 };
151 };
152...