1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/phy/renesas,usb3-phy.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Renesas R-Car generation 3 USB 3.0 PHY
8
9 maintainers:
10 - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
11
12 properties:
13 compatible:
14 items:
15 - enum:
16 - renesas,r8a774a1-usb3-phy # RZ/G2M
17 - renesas,r8a774b1-usb3-phy # RZ/G2N
18 - renesas,r8a774e1-usb3-phy # RZ/G2H
19 - renesas,r8a7795-usb3-phy # R-Car H3
20 - renesas,r8a7796-usb3-phy # R-Car M3-W
21 - renesas,r8a77961-usb3-phy # R-Car M3-W+
22 - renesas,r8a77965-usb3-phy # R-Car M3-N
23 - const: renesas,rcar-gen3-usb3-phy
24
25 reg:
26 maxItems: 1
27
28 clocks:
29 minItems: 2
30 maxItems: 3
31
32 clock-names:
33 # If you want to use the ssc, the clock-frequency of usb_extal
34 # must not be 0.
35 minItems: 2
36 items:
37 - const: usb3-if # The functional clock
38 - const: usb3s_clk # The usb3's external clock
39 - const: usb_extal # The usb2's external clock
40
41 '#phy-cells':
42 # see phy-bindings.txt in the same directory
43 const: 0
44
45 power-domains:
46 maxItems: 1
47
48 resets:
49 maxItems: 1
50
51 renesas,ssc-range:
52 description: |
53 Enable/disable spread spectrum clock (ssc). 0 or the property doesn't
54 exist means disabling the ssc. The actual value will be -<value> ppm.
55 $ref: /schemas/types.yaml#/definitions/uint32
56 enum: [ 0, 4003, 4492, 4980 ]
57
58 required:
59 - compatible
60 - reg
61 - clocks
62 - clock-names
63 - '#phy-cells'
64
65 additionalProperties: false
66
67 examples:
68 - |
69 #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
70 #include <dt-bindings/power/r8a7795-sysc.h>
71
72 usb-phy@e65ee000 {
73 compatible = "renesas,r8a7795-usb3-phy", "renesas,rcar-gen3-usb3-phy";
74 reg = <0xe65ee000 0x90>;
75 clocks = <&cpg CPG_MOD 328>, <&usb3s0_clk>, <&usb_extal>;
76 clock-names = "usb3-if", "usb3s_clk", "usb_extal";
77 #phy-cells = <0>;
78 };
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