xref: /linux/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml (revision 9ff17e6bdaa50892dd9bdb1b116cb71b73dd711a) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/arm/mediatek/mediatek,mt7622-wed.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: MediaTek Wireless Ethernet Dispatch Controller for MT7622
8
9maintainers:
10  - Lorenzo Bianconi <lorenzo@kernel.org>
11  - Felix Fietkau <nbd@nbd.name>
12
13description:
14  The mediatek wireless ethernet dispatch controller can be configured to
15  intercept and handle access to the WLAN DMA queues and PCIe interrupts
16  and implement hardware flow offloading from ethernet to WLAN.
17
18properties:
19  compatible:
20    items:
21      - enum:
22          - mediatek,mt7622-wed
23          - mediatek,mt7981-wed
24          - mediatek,mt7986-wed
25      - const: syscon
26
27  reg:
28    maxItems: 1
29
30  interrupts:
31    maxItems: 1
32
33  memory-region:
34    items:
35      - description: firmware EMI region
36      - description: firmware ILM region
37      - description: firmware DLM region
38      - description: firmware CPU DATA region
39      - description: firmware BOOT region
40
41  memory-region-names:
42    items:
43      - const: wo-emi
44      - const: wo-ilm
45      - const: wo-dlm
46      - const: wo-data
47      - const: wo-boot
48
49  mediatek,wo-ccif:
50    $ref: /schemas/types.yaml#/definitions/phandle
51    description: mediatek wed-wo controller interface.
52
53allOf:
54  - if:
55      properties:
56        compatible:
57          contains:
58            const: mediatek,mt7622-wed
59    then:
60      properties:
61        memory-region-names: false
62        memory-region: false
63        mediatek,wo-ccif: false
64
65required:
66  - compatible
67  - reg
68  - interrupts
69
70additionalProperties: false
71
72examples:
73  - |
74    #include <dt-bindings/interrupt-controller/arm-gic.h>
75    #include <dt-bindings/interrupt-controller/irq.h>
76    soc {
77      #address-cells = <2>;
78      #size-cells = <2>;
79      wed0: wed@1020a000 {
80        compatible = "mediatek,mt7622-wed","syscon";
81        reg = <0 0x1020a000 0 0x1000>;
82        interrupts = <GIC_SPI 214 IRQ_TYPE_LEVEL_LOW>;
83      };
84    };
85
86  - |
87    #include <dt-bindings/interrupt-controller/arm-gic.h>
88    #include <dt-bindings/interrupt-controller/irq.h>
89    soc {
90      #address-cells = <2>;
91      #size-cells = <2>;
92
93      wed@15010000 {
94        compatible = "mediatek,mt7986-wed", "syscon";
95        reg = <0 0x15010000 0 0x1000>;
96        interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
97
98        memory-region = <&wo_emi>, <&wo_ilm>, <&wo_dlm>,
99                        <&wo_data>, <&wo_boot>;
100        memory-region-names = "wo-emi", "wo-ilm", "wo-dlm",
101                              "wo-data", "wo-boot";
102        mediatek,wo-ccif = <&wo_ccif0>;
103      };
104    };
105