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| -rw-r--r-- | Documentation/devicetree/bindings/mmc/tmio_mmc.txt | 112 |
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diff --git a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt new file mode 100644 index 000000000..c434200d1 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt @@ -0,0 +1,112 @@ +* Toshiba Mobile IO SD/MMC controller + +The tmio-mmc driver doesn't probe its devices actively, instead its binding to +devices is managed by either MFD drivers or by the sh_mobile_sdhi platform +driver. Those drivers supply the tmio-mmc driver with platform data, that either +describe hardware capabilities, known to them, or are obtained by them from +their own platform data or from their DT information. In the latter case all +compulsory and any optional properties, common to all SD/MMC drivers, as +described in mmc.txt, can be used. Additionally the following tmio_mmc-specific +optional bindings can be used. + +Required properties: +- compatible: should contain one or more of the following: + "renesas,sdhi-sh73a0" - SDHI IP on SH73A0 SoC + "renesas,sdhi-r7s72100" - SDHI IP on R7S72100 SoC + "renesas,sdhi-r8a73a4" - SDHI IP on R8A73A4 SoC + "renesas,sdhi-r8a7740" - SDHI IP on R8A7740 SoC + "renesas,sdhi-r8a7743" - SDHI IP on R8A7743 SoC + "renesas,sdhi-r8a7745" - SDHI IP on R8A7745 SoC + "renesas,sdhi-r8a7778" - SDHI IP on R8A7778 SoC + "renesas,sdhi-r8a7779" - SDHI IP on R8A7779 SoC + "renesas,sdhi-r8a7790" - SDHI IP on R8A7790 SoC + "renesas,sdhi-r8a7791" - SDHI IP on R8A7791 SoC + "renesas,sdhi-r8a7792" - SDHI IP on R8A7792 SoC + "renesas,sdhi-r8a7793" - SDHI IP on R8A7793 SoC + "renesas,sdhi-r8a7794" - SDHI IP on R8A7794 SoC + "renesas,sdhi-r8a7795" - SDHI IP on R8A7795 SoC + "renesas,sdhi-r8a7796" - SDHI IP on R8A7796 SoC + "renesas,sdhi-r8a77965" - SDHI IP on R8A77965 SoC + "renesas,sdhi-r8a77980" - SDHI IP on R8A77980 SoC + "renesas,sdhi-r8a77990" - SDHI IP on R8A77990 SoC + "renesas,sdhi-r8a77995" - SDHI IP on R8A77995 SoC + "renesas,sdhi-shmobile" - a generic sh-mobile SDHI controller + "renesas,rcar-gen1-sdhi" - a generic R-Car Gen1 SDHI controller + "renesas,rcar-gen2-sdhi" - a generic R-Car Gen2 or RZ/G1 + SDHI controller + "renesas,rcar-gen3-sdhi" - a generic R-Car Gen3 SDHI controller + + + When compatible with the generic version, nodes must list + the SoC-specific version corresponding to the platform + first followed by the generic version. + +- clocks: Most controllers only have 1 clock source per channel. However, on + some variations of this controller, the internal card detection + logic that exists in this controller is sectioned off to be run by a + separate second clock source to allow the main core clock to be turned + off to save power. + If 2 clocks are specified by the hardware, you must name them as + "core" and "cd". If the controller only has 1 clock, naming is not + required. + Devices which have more than 1 clock are listed below: + 2: R7S72100 + +Optional properties: +- pinctrl-names: should be "default", "state_uhs" +- pinctrl-0: should contain default/high speed pin ctrl +- pinctrl-1: should contain uhs mode pin ctrl + +Example: R8A7790 (R-Car H2) SDHI controller nodes + + sdhi0: sd@ee100000 { + compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi"; + reg = <0 0xee100000 0 0x328>; + interrupts = <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 314>; + dmas = <&dmac0 0xcd>, <&dmac0 0xce>, + <&dmac1 0xcd>, <&dmac1 0xce>; + dma-names = "tx", "rx", "tx", "rx"; + max-frequency = <195000000>; + power-domains = <&sysc R8A7790_PD_ALWAYS_ON>; + resets = <&cpg 314>; + }; + + sdhi1: sd@ee120000 { + compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi"; + reg = <0 0xee120000 0 0x328>; + interrupts = <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 313>; + dmas = <&dmac0 0xc9>, <&dmac0 0xca>, + <&dmac1 0xc9>, <&dmac1 0xca>; + dma-names = "tx", "rx", "tx", "rx"; + max-frequency = <195000000>; + power-domains = <&sysc R8A7790_PD_ALWAYS_ON>; + resets = <&cpg 313>; + }; + + sdhi2: sd@ee140000 { + compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi"; + reg = <0 0xee140000 0 0x100>; + interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 312>; + dmas = <&dmac0 0xc1>, <&dmac0 0xc2>, + <&dmac1 0xc1>, <&dmac1 0xc2>; + dma-names = "tx", "rx", "tx", "rx"; + max-frequency = <97500000>; + power-domains = <&sysc R8A7790_PD_ALWAYS_ON>; + resets = <&cpg 312>; + }; + + sdhi3: sd@ee160000 { + compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi"; + reg = <0 0xee160000 0 0x100>; + interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 311>; + dmas = <&dmac0 0xd3>, <&dmac0 0xd4>, + <&dmac1 0xd3>, <&dmac1 0xd4>; + dma-names = "tx", "rx", "tx", "rx"; + max-frequency = <97500000>; + power-domains = <&sysc R8A7790_PD_ALWAYS_ON>; + resets = <&cpg 311>; + }; |