tjh.dev
Linux kernel mirror (for testing)
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linux
1# SPDX-License-Identifier: GPL-2.0-only
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mmc/snps,dwcmshc-sdhci.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Synopsys Designware Mobile Storage Host Controller
8
9maintainers:
10 - Ulf Hansson <ulf.hansson@linaro.org>
11 - Jisheng Zhang <Jisheng.Zhang@synaptics.com>
12
13properties:
14 compatible:
15 oneOf:
16 - items:
17 - enum:
18 - rockchip,rk3528-dwcmshc
19 - rockchip,rk3562-dwcmshc
20 - rockchip,rk3576-dwcmshc
21 - const: rockchip,rk3588-dwcmshc
22 - items:
23 - const: sophgo,sg2044-dwcmshc
24 - const: sophgo,sg2042-dwcmshc
25 - enum:
26 - rockchip,rk3568-dwcmshc
27 - rockchip,rk3588-dwcmshc
28 - snps,dwcmshc-sdhci
29 - sophgo,cv1800b-dwcmshc
30 - sophgo,sg2002-dwcmshc
31 - sophgo,sg2042-dwcmshc
32 - thead,th1520-dwcmshc
33 - eswin,eic7700-dwcmshc
34
35 reg:
36 maxItems: 1
37
38 interrupts:
39 maxItems: 1
40
41 clocks:
42 minItems: 1
43 maxItems: 5
44
45 clock-names:
46 minItems: 1
47 maxItems: 5
48
49 power-domains:
50 maxItems: 1
51
52 resets:
53 maxItems: 5
54
55 reset-names:
56 maxItems: 5
57
58 rockchip,txclk-tapnum:
59 description: Specify the number of delay for tx sampling.
60 $ref: /schemas/types.yaml#/definitions/uint8
61
62 eswin,hsp-sp-csr:
63 $ref: /schemas/types.yaml#/definitions/phandle-array
64 items:
65 - items:
66 - description: Phandle to HSP(High-Speed Peripheral) device
67 - description: Offset of the stability status register for internal
68 clock.
69 - description: Offset of the stability register for host regulator
70 voltage.
71 description:
72 HSP CSR is to control and get status of different high-speed peripherals
73 (such as Ethernet, USB, SATA, etc.) via register, which can tune
74 board-level's parameters of PHY, etc.
75
76 eswin,drive-impedance-ohms:
77 description: Specifies the drive impedance in Ohm.
78 enum: [33, 40, 50, 66, 100]
79
80required:
81 - compatible
82 - reg
83 - interrupts
84 - clocks
85 - clock-names
86
87allOf:
88 - $ref: mmc-controller.yaml#
89
90 - if:
91 properties:
92 compatible:
93 contains:
94 const: sophgo,sg2042-dwcmshc
95
96 then:
97 properties:
98 clocks:
99 items:
100 - description: core clock
101 - description: bus clock
102 - description: timer clock
103 clock-names:
104 items:
105 - const: core
106 - const: bus
107 - const: timer
108 else:
109 properties:
110 clocks:
111 minItems: 1
112 items:
113 - description: core clock
114 - description: bus clock for optional
115 - description: axi clock for rockchip specified
116 - description: block clock for rockchip specified
117 - description: timer clock for rockchip specified
118 clock-names:
119 minItems: 1
120 items:
121 - const: core
122 - const: bus
123 - const: axi
124 - const: block
125 - const: timer
126
127 - if:
128 properties:
129 compatible:
130 contains:
131 const: eswin,eic7700-dwcmshc
132 then:
133 properties:
134 resets:
135 minItems: 4
136 maxItems: 4
137 reset-names:
138 items:
139 - const: axi
140 - const: phy
141 - const: prstn
142 - const: txrx
143 required:
144 - eswin,hsp-sp-csr
145 - eswin,drive-impedance-ohms
146 else:
147 properties:
148 resets:
149 maxItems: 5
150 reset-names:
151 items:
152 - const: core
153 - const: bus
154 - const: axi
155 - const: block
156 - const: timer
157
158 - if:
159 properties:
160 compatible:
161 contains:
162 const: rockchip,rk3576-dwcmshc
163
164 then:
165 required:
166 - power-domains
167
168unevaluatedProperties: false
169
170examples:
171 - |
172 mmc@fe310000 {
173 compatible = "rockchip,rk3568-dwcmshc";
174 reg = <0xfe310000 0x10000>;
175 interrupts = <0 25 0x4>;
176 clocks = <&cru 17>, <&cru 18>, <&cru 19>, <&cru 20>, <&cru 21>;
177 clock-names = "core", "bus", "axi", "block", "timer";
178 bus-width = <8>;
179 #address-cells = <1>;
180 #size-cells = <0>;
181 };
182 - |
183 mmc@aa0000 {
184 compatible = "snps,dwcmshc-sdhci";
185 reg = <0xaa000 0x1000>;
186 interrupts = <0 25 0x4>;
187 clocks = <&cru 17>, <&cru 18>;
188 clock-names = "core", "bus";
189 bus-width = <8>;
190 #address-cells = <1>;
191 #size-cells = <0>;
192 };
193
194...