Merge tag 'devicetree-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git...
[muen/linux.git] / Documentation / devicetree / bindings / mmc / tmio_mmc.txt
1 * Toshiba Mobile IO SD/MMC controller
2
3 The tmio-mmc driver doesn't probe its devices actively, instead its binding to
4 devices is managed by either MFD drivers or by the sh_mobile_sdhi platform
5 driver. Those drivers supply the tmio-mmc driver with platform data, that either
6 describe hardware capabilities, known to them, or are obtained by them from
7 their own platform data or from their DT information. In the latter case all
8 compulsory and any optional properties, common to all SD/MMC drivers, as
9 described in mmc.txt, can be used. Additionally the following tmio_mmc-specific
10 optional bindings can be used.
11
12 Required properties:
13 - compatible: should contain one or more of the following:
14                 "renesas,sdhi-sh73a0" - SDHI IP on SH73A0 SoC
15                 "renesas,sdhi-r7s72100" - SDHI IP on R7S72100 SoC
16                 "renesas,sdhi-r8a73a4" - SDHI IP on R8A73A4 SoC
17                 "renesas,sdhi-r8a7740" - SDHI IP on R8A7740 SoC
18                 "renesas,sdhi-r8a7743" - SDHI IP on R8A7743 SoC
19                 "renesas,sdhi-r8a7745" - SDHI IP on R8A7745 SoC
20                 "renesas,sdhi-r8a7778" - SDHI IP on R8A7778 SoC
21                 "renesas,sdhi-r8a7779" - SDHI IP on R8A7779 SoC
22                 "renesas,sdhi-r8a7790" - SDHI IP on R8A7790 SoC
23                 "renesas,sdhi-r8a7791" - SDHI IP on R8A7791 SoC
24                 "renesas,sdhi-r8a7792" - SDHI IP on R8A7792 SoC
25                 "renesas,sdhi-r8a7793" - SDHI IP on R8A7793 SoC
26                 "renesas,sdhi-r8a7794" - SDHI IP on R8A7794 SoC
27                 "renesas,sdhi-r8a7795" - SDHI IP on R8A7795 SoC
28                 "renesas,sdhi-r8a7796" - SDHI IP on R8A7796 SoC
29                 "renesas,sdhi-r8a77965" - SDHI IP on R8A77965 SoC
30                 "renesas,sdhi-r8a77980" - SDHI IP on R8A77980 SoC
31                 "renesas,sdhi-r8a77995" - SDHI IP on R8A77995 SoC
32                 "renesas,sdhi-shmobile" - a generic sh-mobile SDHI controller
33                 "renesas,rcar-gen1-sdhi" - a generic R-Car Gen1 SDHI controller
34                 "renesas,rcar-gen2-sdhi" - a generic R-Car Gen2 or RZ/G1
35                                            SDHI controller
36                 "renesas,rcar-gen3-sdhi" - a generic R-Car Gen3 SDHI controller
37
38
39                 When compatible with the generic version, nodes must list
40                 the SoC-specific version corresponding to the platform
41                 first followed by the generic version.
42
43 - clocks: Most controllers only have 1 clock source per channel. However, on
44           some variations of this controller, the internal card detection
45           logic that exists in this controller is sectioned off to be run by a
46           separate second clock source to allow the main core clock to be turned
47           off to save power.
48           If 2 clocks are specified by the hardware, you must name them as
49           "core" and "cd". If the controller only has 1 clock, naming is not
50           required.
51           Devices which have more than 1 clock are listed below:
52           2: R7S72100
53
54 Optional properties:
55 - pinctrl-names: should be "default", "state_uhs"
56 - pinctrl-0: should contain default/high speed pin ctrl
57 - pinctrl-1: should contain uhs mode pin ctrl
58
59 Example: R8A7790 (R-Car H2) SDHI controller nodes
60
61         sdhi0: sd@ee100000 {
62                 compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
63                 reg = <0 0xee100000 0 0x328>;
64                 interrupts = <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>;
65                 clocks = <&cpg CPG_MOD 314>;
66                 dmas = <&dmac0 0xcd>, <&dmac0 0xce>,
67                        <&dmac1 0xcd>, <&dmac1 0xce>;
68                 dma-names = "tx", "rx", "tx", "rx";
69                 max-frequency = <195000000>;
70                 power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
71                 resets = <&cpg 314>;
72         };
73
74         sdhi1: sd@ee120000 {
75                 compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
76                 reg = <0 0xee120000 0 0x328>;
77                 interrupts = <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>;
78                 clocks = <&cpg CPG_MOD 313>;
79                 dmas = <&dmac0 0xc9>, <&dmac0 0xca>,
80                        <&dmac1 0xc9>, <&dmac1 0xca>;
81                 dma-names = "tx", "rx", "tx", "rx";
82                 max-frequency = <195000000>;
83                 power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
84                 resets = <&cpg 313>;
85         };
86
87         sdhi2: sd@ee140000 {
88                 compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
89                 reg = <0 0xee140000 0 0x100>;
90                 interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>;
91                 clocks = <&cpg CPG_MOD 312>;
92                 dmas = <&dmac0 0xc1>, <&dmac0 0xc2>,
93                        <&dmac1 0xc1>, <&dmac1 0xc2>;
94                 dma-names = "tx", "rx", "tx", "rx";
95                 max-frequency = <97500000>;
96                 power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
97                 resets = <&cpg 312>;
98         };
99
100         sdhi3: sd@ee160000 {
101                 compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
102                 reg = <0 0xee160000 0 0x100>;
103                 interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
104                 clocks = <&cpg CPG_MOD 311>;
105                 dmas = <&dmac0 0xd3>, <&dmac0 0xd4>,
106                        <&dmac1 0xd3>, <&dmac1 0xd4>;
107                 dma-names = "tx", "rx", "tx", "rx";
108                 max-frequency = <97500000>;
109                 power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
110                 resets = <&cpg 311>;
111         };