1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: "http://devicetree.org/schemas/mmc/renesas,sdhi.yaml#"
5$schema: "http://devicetree.org/meta-schemas/core.yaml#"
6
7title: Renesas SDHI SD/MMC controller
8
9maintainers:
10  - Wolfram Sang <wsa+renesas@sang-engineering.com>
11
12properties:
13  compatible:
14    oneOf:
15      - items:
16          - const: renesas,sdhi-sh73a0  # R-Mobile APE6
17      - items:
18          - const: renesas,sdhi-r7s72100 # RZ/A1H
19      - items:
20          - const: renesas,sdhi-r7s9210 # SH-Mobile AG5
21      - items:
22          - const: renesas,sdhi-r8a73a4 # R-Mobile APE6
23      - items:
24          - const: renesas,sdhi-r8a7740 # R-Mobile A1
25      - items:
26          - enum:
27              - renesas,sdhi-r8a7778 # R-Car M1
28              - renesas,sdhi-r8a7779 # R-Car H1
29          - const: renesas,rcar-gen1-sdhi # R-Car Gen1
30      - items:
31          - enum:
32              - renesas,sdhi-r8a7742  # RZ/G1H
33              - renesas,sdhi-r8a7743  # RZ/G1M
34              - renesas,sdhi-r8a7744  # RZ/G1N
35              - renesas,sdhi-r8a7745  # RZ/G1E
36              - renesas,sdhi-r8a77470 # RZ/G1C
37              - renesas,sdhi-r8a7790  # R-Car H2
38              - renesas,sdhi-r8a7791  # R-Car M2-W
39              - renesas,sdhi-r8a7792  # R-Car V2H
40              - renesas,sdhi-r8a7793  # R-Car M2-N
41              - renesas,sdhi-r8a7794  # R-Car E2
42          - const: renesas,rcar-gen2-sdhi # R-Car Gen2 and RZ/G1
43      - items:
44          - const: renesas,sdhi-mmc-r8a77470 # RZ/G1C (SDHI/MMC IP)
45      - items:
46          - enum:
47              - renesas,sdhi-r8a774a1  # RZ/G2M
48              - renesas,sdhi-r8a774b1  # RZ/G2N
49              - renesas,sdhi-r8a774c0  # RZ/G2E
50              - renesas,sdhi-r8a774e1  # RZ/G2H
51              - renesas,sdhi-r8a7795   # R-Car H3
52              - renesas,sdhi-r8a7796   # R-Car M3-W
53              - renesas,sdhi-r8a77961  # R-Car M3-W+
54              - renesas,sdhi-r8a77965  # R-Car M3-N
55              - renesas,sdhi-r8a77970  # R-Car V3M
56              - renesas,sdhi-r8a77980  # R-Car V3H
57              - renesas,sdhi-r8a77990  # R-Car E3
58              - renesas,sdhi-r8a77995  # R-Car D3
59              - renesas,sdhi-r8a779a0  # R-Car V3U
60              - renesas,sdhi-r9a07g044 # RZ/G2{L,LC}
61          - const: renesas,rcar-gen3-sdhi # R-Car Gen3 or RZ/G2
62
63  reg:
64    maxItems: 1
65
66  interrupts:
67    minItems: 1
68    maxItems: 3
69
70  clocks: true
71
72  clock-names: true
73
74  dmas:
75    minItems: 4
76    maxItems: 4
77
78  dma-names:
79    minItems: 4
80    maxItems: 4
81    items:
82      enum:
83        - tx
84        - rx
85
86  power-domains:
87    maxItems: 1
88
89  resets:
90    maxItems: 1
91
92  pinctrl-0:
93    minItems: 1
94    maxItems: 2
95
96  pinctrl-1:
97    maxItems: 1
98
99  pinctrl-names: true
100
101  max-frequency: true
102
103allOf:
104  - $ref: "mmc-controller.yaml"
105
106  - if:
107      properties:
108        compatible:
109          contains:
110            const: renesas,sdhi-r9a07g044
111    then:
112      properties:
113        clocks:
114          items:
115            - description: IMCLK, SDHI channel main clock1.
116            - description: IMCLK2, SDHI channel main clock2. When this clock is
117                           turned off, external SD card detection cannot be
118                           detected.
119            - description: CLK_HS, SDHI channel High speed clock which operates
120                           4 times that of SDHI channel main clock1.
121            - description: ACLK, SDHI channel bus clock.
122        clock-names:
123          items:
124            - const: imclk
125            - const: imclk2
126            - const: clk_hs
127            - const: aclk
128      required:
129        - clock-names
130        - resets
131    else:
132      properties:
133        clocks:
134          minItems: 1
135          maxItems: 2
136        clock-names:
137          minItems: 1
138          items:
139            - const: core
140            - const: cd
141
142  - if:
143      properties:
144        compatible:
145          contains:
146            const: renesas,sdhi-mmc-r8a77470
147    then:
148      properties:
149        pinctrl-names:
150          items:
151            - const: state_uhs
152    else:
153      properties:
154        pinctrl-names:
155          minItems: 1
156          items:
157            - const: default
158            - const: state_uhs
159
160  - if:
161      properties:
162        compatible:
163          contains:
164            enum:
165              - renesas,sdhi-r7s72100
166              - renesas,sdhi-r7s9210
167    then:
168      required:
169        - clock-names
170      description:
171        The internal card detection logic that exists in these controllers is
172        sectioned off to be run by a separate second clock source to allow
173        the main core clock to be turned off to save power.
174
175required:
176  - compatible
177  - reg
178  - interrupts
179  - clocks
180  - power-domains
181
182unevaluatedProperties: false
183
184examples:
185  - |
186    #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
187    #include <dt-bindings/interrupt-controller/arm-gic.h>
188    #include <dt-bindings/power/r8a7790-sysc.h>
189
190    sdhi0: mmc@ee100000 {
191            compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
192            reg = <0xee100000 0x328>;
193            interrupts = <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>;
194            clocks = <&cpg CPG_MOD 314>;
195            dmas = <&dmac0 0xcd>, <&dmac0 0xce>, <&dmac1 0xcd>, <&dmac1 0xce>;
196            dma-names = "tx", "rx", "tx", "rx";
197            max-frequency = <195000000>;
198            power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
199            resets = <&cpg 314>;
200    };
201
202    sdhi1: mmc@ee120000 {
203             compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
204             reg = <0xee120000 0x328>;
205             interrupts = <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>;
206             clocks = <&cpg CPG_MOD 313>;
207             dmas = <&dmac0 0xc9>, <&dmac0 0xca>, <&dmac1 0xc9>, <&dmac1 0xca>;
208             dma-names = "tx", "rx", "tx", "rx";
209             max-frequency = <195000000>;
210             power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
211             resets = <&cpg 313>;
212    };
213
214    sdhi2: mmc@ee140000 {
215             compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
216             reg = <0xee140000 0x100>;
217             interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>;
218             clocks = <&cpg CPG_MOD 312>;
219             dmas = <&dmac0 0xc1>, <&dmac0 0xc2>, <&dmac1 0xc1>, <&dmac1 0xc2>;
220             dma-names = "tx", "rx", "tx", "rx";
221             max-frequency = <97500000>;
222             power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
223             resets = <&cpg 312>;
224     };
225
226     sdhi3: mmc@ee160000 {
227              compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
228              reg = <0xee160000 0x100>;
229              interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
230              clocks = <&cpg CPG_MOD 311>;
231              dmas = <&dmac0 0xd3>, <&dmac0 0xd4>, <&dmac1 0xd3>, <&dmac1 0xd4>;
232              dma-names = "tx", "rx", "tx", "rx";
233              max-frequency = <97500000>;
234              power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
235              resets = <&cpg 311>;
236    };
237