| # 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# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Amlogic Meson6, Meson8 and Meson8b SDIO/MMC controller |
| |
| description: | |
| The highspeed MMC host controller on Amlogic SoCs provides an interface |
| for MMC, SD, SDIO and SDHC types of memory cards. |
| |
| Supported maximum speeds are the ones of the eMMC standard 4.41 as well |
| as the speed of SD standard 2.0. |
| |
| The hardware provides an internal "mux" which allows up to three slots |
| to be controlled. Only one slot can be accessed at a time. |
| |
| maintainers: |
| - Neil Armstrong <[email protected]> |
| |
| properties: |
| compatible: |
| items: |
| - enum: |
| - amlogic,meson8-sdio |
| - amlogic,meson8b-sdio |
| - const: amlogic,meson-mx-sdio |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| clocks: |
| maxItems: 2 |
| |
| clock-names: |
| items: |
| - const: core |
| - const: clkin |
| |
| "#address-cells": |
| const: 1 |
| |
| "#size-cells": |
| const: 0 |
| |
| patternProperties: |
| "slot@[0-2]$": |
| $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>; |
| }; |
| }; |
