1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/net/rockchip,emac.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Rockchip RK3036/RK3066/RK3188 Ethernet Media Access Controller (EMAC)
8
9 maintainers:
10 - Heiko Stuebner <heiko@sntech.de>
11
12 properties:
13 compatible:
14 enum:
15 - rockchip,rk3036-emac
16 - rockchip,rk3066-emac
17 - rockchip,rk3188-emac
18
19 reg:
20 maxItems: 1
21
22 interrupts:
23 maxItems: 1
24
25 clocks:
26 minItems: 2
27 items:
28 - description: host clock
29 - description: reference clock
30 - description: mac TX/RX clock
31
32 clock-names:
33 minItems: 2
34 items:
35 - const: hclk
36 - const: macref
37 - const: macclk
38
39 rockchip,grf:
40 $ref: /schemas/types.yaml#/definitions/phandle
41 description:
42 Phandle to the syscon GRF used to control speed and mode for the EMAC.
43
44 phy-supply:
45 description:
46 Phandle to a regulator if the PHY needs one.
47
48 mdio:
49 $ref: mdio.yaml#
50 unevaluatedProperties: false
51
52 required:
53 - compatible
54 - reg
55 - interrupts
56 - clocks
57 - clock-names
58 - rockchip,grf
59 - phy
60 - phy-mode
61 - mdio
62
63 allOf:
64 - $ref: ethernet-controller.yaml#
65 - if:
66 properties:
67 compatible:
68 contains:
69 const: rockchip,rk3036-emac
70
71 then:
72 properties:
73 clocks:
74 minItems: 3
75
76 clock-names:
77 minItems: 3
78
79 else:
80 properties:
81 clocks:
82 maxItems: 2
83
84 clock-names:
85 maxItems: 2
86
87 unevaluatedProperties: false
88
89 examples:
90 - |
91 #include <dt-bindings/clock/rk3188-cru-common.h>
92 #include <dt-bindings/interrupt-controller/arm-gic.h>
93
94 ethernet@10204000 {
95 compatible = "rockchip,rk3188-emac";
96 reg = <0xc0fc2000 0x3c>;
97 interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
98 clocks = <&cru HCLK_EMAC>, <&cru SCLK_MAC>;
99 clock-names = "hclk", "macref";
100 rockchip,grf = <&grf>;
101 pinctrl-0 = <&emac_xfer>, <&emac_mdio>, <&phy_int>;
102 pinctrl-names = "default";
103 phy = <&phy0>;
104 phy-mode = "rmii";
105 phy-supply = <&vcc_rmii>;
106
107 mdio {
108 #address-cells = <1>;
109 #size-cells = <0>;
110
111 phy0: ethernet-phy@0 {
112 reg = <1>;
113 };
114 };
115 };
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