1*ffe18c0fSConor Dooley# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*ffe18c0fSConor Dooley%YAML 1.2 3*ffe18c0fSConor Dooley--- 4*ffe18c0fSConor Dooley$id: http://devicetree.org/schemas/mmc/mmc-spi-slot.yaml# 5*ffe18c0fSConor Dooley$schema: http://devicetree.org/meta-schemas/core.yaml# 6*ffe18c0fSConor Dooley 7*ffe18c0fSConor Dooleytitle: MMC/SD/SDIO slot directly connected to a SPI bus 8*ffe18c0fSConor Dooley 9*ffe18c0fSConor Dooleymaintainers: 10*ffe18c0fSConor Dooley - Ulf Hansson <ulf.hansson@linaro.org> 11*ffe18c0fSConor Dooley 12*ffe18c0fSConor DooleyallOf: 13*ffe18c0fSConor Dooley - $ref: "mmc-controller.yaml" 14*ffe18c0fSConor Dooley - $ref: /schemas/spi/spi-peripheral-props.yaml 15*ffe18c0fSConor Dooley 16*ffe18c0fSConor Dooleydescription: | 17*ffe18c0fSConor Dooley The extra properties used by an mmc connected via SPI. 18*ffe18c0fSConor Dooley 19*ffe18c0fSConor Dooleyproperties: 20*ffe18c0fSConor Dooley compatible: 21*ffe18c0fSConor Dooley const: mmc-spi-slot 22*ffe18c0fSConor Dooley 23*ffe18c0fSConor Dooley reg: 24*ffe18c0fSConor Dooley maxItems: 1 25*ffe18c0fSConor Dooley 26*ffe18c0fSConor Dooley spi-max-frequency: true 27*ffe18c0fSConor Dooley 28*ffe18c0fSConor Dooley interrupts: 29*ffe18c0fSConor Dooley maxItems: 1 30*ffe18c0fSConor Dooley 31*ffe18c0fSConor Dooley voltage-ranges: 32*ffe18c0fSConor Dooley $ref: /schemas/types.yaml#/definitions/uint32-array 33*ffe18c0fSConor Dooley description: | 34*ffe18c0fSConor Dooley Two cells are required, first cell specifies minimum slot voltage (mV), 35*ffe18c0fSConor Dooley second cell specifies maximum slot voltage (mV). 36*ffe18c0fSConor Dooley items: 37*ffe18c0fSConor Dooley - description: | 38*ffe18c0fSConor Dooley value for minimum slot voltage in mV 39*ffe18c0fSConor Dooley default: 3200 40*ffe18c0fSConor Dooley - description: | 41*ffe18c0fSConor Dooley value for maximum slot voltage in mV 42*ffe18c0fSConor Dooley default: 3400 43*ffe18c0fSConor Dooley 44*ffe18c0fSConor Dooley gpios: 45*ffe18c0fSConor Dooley description: | 46*ffe18c0fSConor Dooley For historical reasons, this does not follow the generic mmc-controller 47*ffe18c0fSConor Dooley binding. 48*ffe18c0fSConor Dooley minItems: 1 49*ffe18c0fSConor Dooley items: 50*ffe18c0fSConor Dooley - description: Card-Detect GPIO 51*ffe18c0fSConor Dooley - description: Write-Protect GPIO 52*ffe18c0fSConor Dooley 53*ffe18c0fSConor Dooleyrequired: 54*ffe18c0fSConor Dooley - compatible 55*ffe18c0fSConor Dooley - reg 56*ffe18c0fSConor Dooley - spi-max-frequency 57*ffe18c0fSConor Dooley 58*ffe18c0fSConor DooleyunevaluatedProperties: false 59*ffe18c0fSConor Dooley 60*ffe18c0fSConor Dooleyexamples: 61*ffe18c0fSConor Dooley - | 62*ffe18c0fSConor Dooley #include <dt-bindings/gpio/gpio.h> 63*ffe18c0fSConor Dooley spi { 64*ffe18c0fSConor Dooley #address-cells = <1>; 65*ffe18c0fSConor Dooley #size-cells = <0>; 66*ffe18c0fSConor Dooley mmc@0 { 67*ffe18c0fSConor Dooley compatible = "mmc-spi-slot"; 68*ffe18c0fSConor Dooley reg = <0>; 69*ffe18c0fSConor Dooley gpios = <&gpio 14 GPIO_ACTIVE_LOW>, <&gpio 15 GPIO_ACTIVE_HIGH>; 70*ffe18c0fSConor Dooley voltage-ranges = <3300 3300>; 71*ffe18c0fSConor Dooley spi-max-frequency = <50000000>; 72*ffe18c0fSConor Dooley interrupts = <42>; 73*ffe18c0fSConor Dooley interrupt-parent = <&PIC>; 74*ffe18c0fSConor Dooley }; 75*ffe18c0fSConor Dooley }; 76*ffe18c0fSConor Dooley 77*ffe18c0fSConor Dooley... 78