xref: /linux/Documentation/devicetree/bindings/net/can/xilinx,can.yaml (revision b8e85e6f3a09fc56b0ff574887798962ef8a8f80) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/net/can/xilinx,can.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title:
8  Xilinx Axi CAN/Zynq CANPS controller
9
10maintainers:
11  - Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
12
13properties:
14  compatible:
15    enum:
16      - xlnx,zynq-can-1.0
17      - xlnx,axi-can-1.00.a
18      - xlnx,canfd-1.0
19      - xlnx,canfd-2.0
20
21  reg:
22    maxItems: 1
23
24  interrupts:
25    maxItems: 1
26
27  clocks:
28    minItems: 1
29    maxItems: 2
30
31  clock-names:
32    maxItems: 2
33
34  power-domains:
35    maxItems: 1
36
37  tx-fifo-depth:
38    $ref: /schemas/types.yaml#/definitions/uint32
39    description: CAN Tx fifo depth (Zynq, Axi CAN).
40
41  rx-fifo-depth:
42    $ref: /schemas/types.yaml#/definitions/uint32
43    description: CAN Rx fifo depth (Zynq, Axi CAN, CAN FD in sequential Rx mode)
44
45  tx-mailbox-count:
46    $ref: /schemas/types.yaml#/definitions/uint32
47    description: CAN Tx mailbox buffer count (CAN FD)
48
49  resets:
50    maxItems: 1
51
52required:
53  - compatible
54  - reg
55  - interrupts
56  - clocks
57  - clock-names
58
59unevaluatedProperties: false
60
61allOf:
62  - $ref: can-controller.yaml#
63  - if:
64      properties:
65        compatible:
66          contains:
67            enum:
68              - xlnx,zynq-can-1.0
69
70    then:
71      properties:
72        clock-names:
73          items:
74            - const: can_clk
75            - const: pclk
76      required:
77        - tx-fifo-depth
78        - rx-fifo-depth
79
80  - if:
81      properties:
82        compatible:
83          contains:
84            enum:
85              - xlnx,axi-can-1.00.a
86
87    then:
88      properties:
89        clock-names:
90          items:
91            - const: can_clk
92            - const: s_axi_aclk
93      required:
94        - tx-fifo-depth
95        - rx-fifo-depth
96
97  - if:
98      properties:
99        compatible:
100          contains:
101            enum:
102              - xlnx,canfd-1.0
103              - xlnx,canfd-2.0
104
105    then:
106      properties:
107        clock-names:
108          items:
109            - const: can_clk
110            - const: s_axi_aclk
111      required:
112        - tx-mailbox-count
113        - rx-fifo-depth
114
115examples:
116  - |
117    #include <dt-bindings/interrupt-controller/arm-gic.h>
118
119    can@e0008000 {
120        compatible = "xlnx,zynq-can-1.0";
121        reg = <0xe0008000 0x1000>;
122        clocks = <&clkc 19>, <&clkc 36>;
123        clock-names = "can_clk", "pclk";
124        interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
125        interrupt-parent = <&intc>;
126        tx-fifo-depth = <0x40>;
127        rx-fifo-depth = <0x40>;
128    };
129
130  - |
131    can@40000000 {
132        compatible = "xlnx,axi-can-1.00.a";
133        reg = <0x40000000 0x10000>;
134        clocks = <&clkc 0>, <&clkc 1>;
135        clock-names = "can_clk", "s_axi_aclk";
136        interrupt-parent = <&intc>;
137        interrupts = <GIC_SPI 59 IRQ_TYPE_EDGE_RISING>;
138        tx-fifo-depth = <0x40>;
139        rx-fifo-depth = <0x40>;
140    };
141
142  - |
143    can@40000000 {
144        compatible = "xlnx,canfd-1.0";
145        reg = <0x40000000 0x2000>;
146        clocks = <&clkc 0>, <&clkc 1>;
147        clock-names = "can_clk", "s_axi_aclk";
148        interrupt-parent = <&intc>;
149        interrupts = <GIC_SPI 59 IRQ_TYPE_EDGE_RISING>;
150        tx-mailbox-count = <0x20>;
151        rx-fifo-depth = <0x20>;
152    };
153
154  - |
155    can@ff060000 {
156        compatible = "xlnx,canfd-2.0";
157        reg = <0xff060000 0x6000>;
158        clocks = <&clkc 0>, <&clkc 1>;
159        clock-names = "can_clk", "s_axi_aclk";
160        interrupt-parent = <&intc>;
161        interrupts = <GIC_SPI 59 IRQ_TYPE_EDGE_RISING>;
162        tx-mailbox-count = <0x20>;
163        rx-fifo-depth = <0x40>;
164    };
165