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Diffstat (limited to 'Documentation/devicetree/bindings/mmc/wm,wm8505-sdhc.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/mmc/wm,wm8505-sdhc.yaml | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/wm,wm8505-sdhc.yaml b/Documentation/devicetree/bindings/mmc/wm,wm8505-sdhc.yaml new file mode 100644 index 000000000000..5b55174e9088 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/wm,wm8505-sdhc.yaml @@ -0,0 +1,66 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mmc/wm,wm8505-sdhc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: WonderMedia SoC SDHCI Controller + +maintainers: + - Alexey Charkov <alchark@gmail.com> + +allOf: + - $ref: mmc-controller.yaml# + +properties: + compatible: + oneOf: + - const: wm,wm8505-sdhc + - items: + - const: wm,wm8650-sdhc + - const: wm,wm8505-sdhc + - items: + - const: wm,wm8750-sdhc + - const: wm,wm8505-sdhc + - items: + - const: wm,wm8850-sdhc + - const: wm,wm8505-sdhc + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + interrupts: + items: + - description: SDMMC controller interrupt + - description: SDMMC controller DMA interrupt + + sdon-inverted: + type: boolean + description: All chips before (not including) WM8505 rev. A2 treated their + "clock stop" bit (register offset 0x08 a.k.a. SDMMC_BUSMODE, bit 0x10) + as "set 1 to disable SD clock", while all the later versions treated it + as "set 0 to disable SD clock". Set this property for later versions of + wm,wm8505-sdhc. On wm,wm8650-sdhc and later this property is implied and + does not need to be set explicitly + +required: + - compatible + - reg + - interrupts + - clocks + +unevaluatedProperties: false + +examples: + - | + mmc@d800a000 { + compatible = "wm,wm8505-sdhc"; + reg = <0xd800a000 0x1000>; + interrupts = <20>, <21>; + clocks = <&sdhc>; + bus-width = <4>; + sdon-inverted; + }; |