1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/net/can/ren 4 $id: http://devicetree.org/schemas/net/can/renesas,rcar-can.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Renesas R-Car CAN Controller 7 title: Renesas R-Car CAN Controller
8 8
9 maintainers: 9 maintainers:
10 - Sergei Shtylyov <sergei.shtylyov@gmail.com> 10 - Sergei Shtylyov <sergei.shtylyov@gmail.com>
11 11
12 properties: 12 properties:
13 compatible: 13 compatible:
14 oneOf: 14 oneOf:
15 - items: 15 - items:
16 - enum: 16 - enum:
17 - renesas,can-r8a7778 # R-C 17 - renesas,can-r8a7778 # R-Car M1-A
18 - renesas,can-r8a7779 # R-C 18 - renesas,can-r8a7779 # R-Car H1
19 - const: renesas,rcar-gen1-can # R-C 19 - const: renesas,rcar-gen1-can # R-Car Gen1
20 20
21 - items: 21 - items:
22 - enum: 22 - enum:
23 - renesas,can-r8a7742 # RZ/ 23 - renesas,can-r8a7742 # RZ/G1H
24 - renesas,can-r8a7743 # RZ/ 24 - renesas,can-r8a7743 # RZ/G1M
25 - renesas,can-r8a7744 # RZ/ 25 - renesas,can-r8a7744 # RZ/G1N
26 - renesas,can-r8a7745 # RZ/ 26 - renesas,can-r8a7745 # RZ/G1E
27 - renesas,can-r8a77470 # RZ/ 27 - renesas,can-r8a77470 # RZ/G1C
28 - renesas,can-r8a7790 # R-C 28 - renesas,can-r8a7790 # R-Car H2
29 - renesas,can-r8a7791 # R-C 29 - renesas,can-r8a7791 # R-Car M2-W
30 - renesas,can-r8a7792 # R-C 30 - renesas,can-r8a7792 # R-Car V2H
31 - renesas,can-r8a7793 # R-C 31 - renesas,can-r8a7793 # R-Car M2-N
32 - renesas,can-r8a7794 # R-C 32 - renesas,can-r8a7794 # R-Car E2
33 - const: renesas,rcar-gen2-can # R-C 33 - const: renesas,rcar-gen2-can # R-Car Gen2 and RZ/G1
34 34
35 - items: 35 - items:
36 - enum: 36 - enum:
37 - renesas,can-r8a774a1 # RZ/ 37 - renesas,can-r8a774a1 # RZ/G2M
38 - renesas,can-r8a774b1 # RZ/ 38 - renesas,can-r8a774b1 # RZ/G2N
39 - renesas,can-r8a774c0 # RZ/ 39 - renesas,can-r8a774c0 # RZ/G2E
40 - renesas,can-r8a774e1 # RZ/ 40 - renesas,can-r8a774e1 # RZ/G2H
41 - renesas,can-r8a7795 # R-C 41 - renesas,can-r8a7795 # R-Car H3
42 - renesas,can-r8a7796 # R-C 42 - renesas,can-r8a7796 # R-Car M3-W
43 - renesas,can-r8a77961 # R-C 43 - renesas,can-r8a77961 # R-Car M3-W+
44 - renesas,can-r8a77965 # R-C 44 - renesas,can-r8a77965 # R-Car M3-N
45 - renesas,can-r8a77990 # R-C 45 - renesas,can-r8a77990 # R-Car E3
46 - renesas,can-r8a77995 # R-C 46 - renesas,can-r8a77995 # R-Car D3
47 - const: renesas,rcar-gen3-can # R-C 47 - const: renesas,rcar-gen3-can # R-Car Gen3 and RZ/G2
48 48
49 reg: 49 reg:
50 maxItems: 1 50 maxItems: 1
51 51
52 interrupts: 52 interrupts:
53 maxItems: 1 53 maxItems: 1
54 54
55 clocks: 55 clocks:
56 maxItems: 3 56 maxItems: 3
57 57
58 clock-names: 58 clock-names:
59 items: 59 items:
60 - const: clkp1 60 - const: clkp1
61 - const: clkp2 61 - const: clkp2
62 - const: can_clk 62 - const: can_clk
63 63
64 power-domains: 64 power-domains:
65 maxItems: 1 65 maxItems: 1
66 66
67 resets: 67 resets:
68 maxItems: 1 68 maxItems: 1
69 69
70 renesas,can-clock-select: 70 renesas,can-clock-select:
71 $ref: /schemas/types.yaml#/definitions/uin 71 $ref: /schemas/types.yaml#/definitions/uint32
72 enum: [ 0, 1, 3 ] 72 enum: [ 0, 1, 3 ]
73 default: 0 73 default: 0
74 description: | 74 description: |
75 R-Car CAN Clock Source Select. Valid va 75 R-Car CAN Clock Source Select. Valid values are:
76 <0x0> (default) : Peripheral clock (cl 76 <0x0> (default) : Peripheral clock (clkp1)
77 <0x1> : Peripheral clock (clkp2) 77 <0x1> : Peripheral clock (clkp2)
78 <0x3> : External input clock 78 <0x3> : External input clock
79 79
80 assigned-clocks: 80 assigned-clocks:
81 description: 81 description:
82 Reference to the clkp2 (CANFD) clock. 82 Reference to the clkp2 (CANFD) clock.
83 On R-Car Gen3 and RZ/G2 SoCs, "clkp2" is 83 On R-Car Gen3 and RZ/G2 SoCs, "clkp2" is the CANFD clock. This is a div6
84 clock and can be used by both CAN and CA 84 clock and can be used by both CAN and CAN FD controllers at the same
85 time. It needs to be scaled to maximum 85 time. It needs to be scaled to maximum frequency if any of these
86 controllers use it. 86 controllers use it.
87 87
88 assigned-clock-rates: 88 assigned-clock-rates:
89 description: Maximum frequency of the CANF 89 description: Maximum frequency of the CANFD clock.
90 90
91 required: 91 required:
92 - compatible 92 - compatible
93 - reg 93 - reg
94 - interrupts 94 - interrupts
95 - clocks 95 - clocks
96 - clock-names 96 - clock-names
97 - power-domains 97 - power-domains
98 98
99 allOf: 99 allOf:
100 - $ref: can-controller.yaml# 100 - $ref: can-controller.yaml#
101 101
102 - if: 102 - if:
103 not: 103 not:
104 properties: 104 properties:
105 compatible: 105 compatible:
106 contains: 106 contains:
107 const: renesas,rcar-gen1-can 107 const: renesas,rcar-gen1-can
108 then: 108 then:
109 required: 109 required:
110 - resets 110 - resets
111 111
112 - if: 112 - if:
113 properties: 113 properties:
114 compatible: 114 compatible:
115 contains: 115 contains:
116 const: renesas,rcar-gen3-can 116 const: renesas,rcar-gen3-can
117 then: 117 then:
118 required: 118 required:
119 - assigned-clocks 119 - assigned-clocks
120 - assigned-clock-rates 120 - assigned-clock-rates
121 121
122 unevaluatedProperties: false 122 unevaluatedProperties: false
123 123
124 examples: 124 examples:
125 - | 125 - |
126 #include <dt-bindings/clock/r8a7791-cpg-ms 126 #include <dt-bindings/clock/r8a7791-cpg-mssr.h>
127 #include <dt-bindings/interrupt-controller 127 #include <dt-bindings/interrupt-controller/arm-gic.h>
128 #include <dt-bindings/power/r8a7791-sysc.h 128 #include <dt-bindings/power/r8a7791-sysc.h>
129 129
130 can0: can@e6e80000 { 130 can0: can@e6e80000 {
131 compatible = "renesas,can-r8a7791" 131 compatible = "renesas,can-r8a7791", "renesas,rcar-gen2-can";
132 reg = <0xe6e80000 0x1000>; 132 reg = <0xe6e80000 0x1000>;
133 interrupts = <GIC_SPI 186 IRQ_TYPE 133 interrupts = <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>;
134 clocks = <&cpg CPG_MOD 916>, 134 clocks = <&cpg CPG_MOD 916>,
135 <&cpg CPG_CORE R8A7791_CL 135 <&cpg CPG_CORE R8A7791_CLK_RCAN>, <&can_clk>;
136 clock-names = "clkp1", "clkp2", "c 136 clock-names = "clkp1", "clkp2", "can_clk";
137 power-domains = <&sysc R8A7791_PD_ 137 power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
138 resets = <&cpg 916>; 138 resets = <&cpg 916>;
139 }; 139 };
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