xref: /linux/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml (revision 6f47c7ae8c7afaf9ad291d39f0d3974f191a7946) 
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          - mediatek,mt7988-wed
26      - const: syscon
27
28  reg:
29    maxItems: 1
30
31  interrupts:
32    maxItems: 1
33
34  memory-region:
35    items:
36      - description: firmware EMI region
37      - description: firmware ILM region
38      - description: firmware DLM region
39      - description: firmware CPU DATA region
40      - description: firmware BOOT region
41
42  memory-region-names:
43    items:
44      - const: wo-emi
45      - const: wo-ilm
46      - const: wo-dlm
47      - const: wo-data
48      - const: wo-boot
49
50  mediatek,wo-ccif:
51    $ref: /schemas/types.yaml#/definitions/phandle
52    description: mediatek wed-wo controller interface.
53
54allOf:
55  - if:
56      properties:
57        compatible:
58          contains:
59            const: mediatek,mt7622-wed
60    then:
61      properties:
62        memory-region-names: false
63        memory-region: false
64        mediatek,wo-ccif: false
65
66required:
67  - compatible
68  - reg
69  - interrupts
70
71additionalProperties: false
72
73examples:
74  - |
75    #include <dt-bindings/interrupt-controller/arm-gic.h>
76    #include <dt-bindings/interrupt-controller/irq.h>
77    soc {
78      #address-cells = <2>;
79      #size-cells = <2>;
80      wed0: wed@1020a000 {
81        compatible = "mediatek,mt7622-wed","syscon";
82        reg = <0 0x1020a000 0 0x1000>;
83        interrupts = <GIC_SPI 214 IRQ_TYPE_LEVEL_LOW>;
84      };
85    };
86
87  - |
88    #include <dt-bindings/interrupt-controller/arm-gic.h>
89    #include <dt-bindings/interrupt-controller/irq.h>
90    soc {
91      #address-cells = <2>;
92      #size-cells = <2>;
93
94      wed@15010000 {
95        compatible = "mediatek,mt7986-wed", "syscon";
96        reg = <0 0x15010000 0 0x1000>;
97        interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
98
99        memory-region = <&wo_emi>, <&wo_ilm>, <&wo_dlm>,
100                        <&wo_data>, <&wo_boot>;
101        memory-region-names = "wo-emi", "wo-ilm", "wo-dlm",
102                              "wo-data", "wo-boot";
103        mediatek,wo-ccif = <&wo_ccif0>;
104      };
105    };
106