tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1* Toshiba Mobile IO SD/MMC controller
2
3The tmio-mmc driver doesn't probe its devices actively, instead its binding to
4devices is managed by either MFD drivers or by the sh_mobile_sdhi platform
5driver. Those drivers supply the tmio-mmc driver with platform data, that either
6describe hardware capabilities, known to them, or are obtained by them from
7their own platform data or from their DT information. In the latter case all
8compulsory and any optional properties, common to all SD/MMC drivers, as
9described in mmc.txt, can be used. Additionally the following tmio_mmc-specific
10optional bindings can be used.
11
12Required 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-shmobile" - a generic sh-mobile SDHI controller
30 "renesas,rcar-gen1-sdhi" - a generic R-Car Gen1 SDHI controller
31 "renesas,rcar-gen2-sdhi" - a generic R-Car Gen2 or RZ/G1
32 SDHI controller
33 "renesas,rcar-gen3-sdhi" - a generic R-Car Gen3 SDHI controller
34
35
36 When compatible with the generic version, nodes must list
37 the SoC-specific version corresponding to the platform
38 first followed by the generic version.
39
40- clocks: Most controllers only have 1 clock source per channel. However, on
41 some variations of this controller, the internal card detection
42 logic that exists in this controller is sectioned off to be run by a
43 separate second clock source to allow the main core clock to be turned
44 off to save power.
45 If 2 clocks are specified by the hardware, you must name them as
46 "core" and "cd". If the controller only has 1 clock, naming is not
47 required.
48 Devices which have more than 1 clock are listed below:
49 2: R7S72100
50
51Optional properties:
52- toshiba,mmc-wrprotect-disable: write-protect detection is unavailable
53- pinctrl-names: should be "default", "state_uhs"
54- pinctrl-0: should contain default/high speed pin ctrl
55- pinctrl-1: should contain uhs mode pin ctrl
56
57Example: R8A7790 (R-Car H2) SDHI controller nodes
58
59 sdhi0: sd@ee100000 {
60 compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
61 reg = <0 0xee100000 0 0x328>;
62 interrupts = <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>;
63 clocks = <&cpg CPG_MOD 314>;
64 dmas = <&dmac0 0xcd>, <&dmac0 0xce>,
65 <&dmac1 0xcd>, <&dmac1 0xce>;
66 dma-names = "tx", "rx", "tx", "rx";
67 max-frequency = <195000000>;
68 power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
69 resets = <&cpg 314>;
70 status = "disabled";
71 };
72
73 sdhi1: sd@ee120000 {
74 compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
75 reg = <0 0xee120000 0 0x328>;
76 interrupts = <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>;
77 clocks = <&cpg CPG_MOD 313>;
78 dmas = <&dmac0 0xc9>, <&dmac0 0xca>,
79 <&dmac1 0xc9>, <&dmac1 0xca>;
80 dma-names = "tx", "rx", "tx", "rx";
81 max-frequency = <195000000>;
82 power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
83 resets = <&cpg 313>;
84 status = "disabled";
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 status = "disabled";
99 };
100
101 sdhi3: sd@ee160000 {
102 compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
103 reg = <0 0xee160000 0 0x100>;
104 interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
105 clocks = <&cpg CPG_MOD 311>;
106 dmas = <&dmac0 0xd3>, <&dmac0 0xd4>,
107 <&dmac1 0xd3>, <&dmac1 0xd4>;
108 dma-names = "tx", "rx", "tx", "rx";
109 max-frequency = <97500000>;
110 power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
111 resets = <&cpg 311>;
112 status = "disabled";
113 };