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Diffstat (limited to 'Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.yaml')
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diff --git a/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.yaml b/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.yaml new file mode 100644 index 000000000000..022682a977c6 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.yaml @@ -0,0 +1,94 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mmc/amlogic,meson-mx-sdio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Amlogic Meson6, Meson8 and Meson8b SDIO/MMC controller + +description: | + The highspeed MMC host controller on Amlogic SoCs provides an interface + for MMC, SD, SDIO and SDHC types of memory cards. + + Supported maximum speeds are the ones of the eMMC standard 4.41 as well + as the speed of SD standard 2.0. + + The hardware provides an internal "mux" which allows up to three slots + to be controlled. Only one slot can be accessed at a time. + +maintainers: + - Neil Armstrong <neil.armstrong@linaro.org> + +properties: + compatible: + items: + - enum: + - amlogic,meson8-sdio + - amlogic,meson8b-sdio + - const: amlogic,meson-mx-sdio + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 2 + + clock-names: + items: + - const: core + - const: clkin + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + "slot@[0-2]$": + $ref: mmc-slot.yaml# + description: + A node for each slot provided by the MMC controller + + properties: + reg: + enum: [0, 1, 2] + + bus-width: + enum: [1, 4] + + unevaluatedProperties: false + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - "#address-cells" + - "#size-cells" + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + mmc@c1108c20 { + compatible = "amlogic,meson8-sdio", "amlogic,meson-mx-sdio"; + reg = <0xc1108c20 0x20>; + interrupts = <GIC_SPI 28 IRQ_TYPE_EDGE_RISING>; + clocks = <&clk_core>, <&clk_in>; + clock-names = "core", "clkin"; + #address-cells = <1>; + #size-cells = <0>; + + slot@1 { + compatible = "mmc-slot"; + reg = <1>; + bus-width = <4>; + }; + }; |