Add documentation to describe StarFive designware mobile storage host controller driver. Signed-off-by: William Qiu <william.qiu@xxxxxxxxxxxxxxxx> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- .../bindings/mmc/starfive,jh7110-mmc.yaml | 77 +++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/starfive,jh7110-mmc.yaml diff --git a/Documentation/devicetree/bindings/mmc/starfive,jh7110-mmc.yaml b/Documentation/devicetree/bindings/mmc/starfive,jh7110-mmc.yaml new file mode 100644 index 000000000000..51e1b04e799f --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/starfive,jh7110-mmc.yaml @@ -0,0 +1,77 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mmc/starfive,jh7110-mmc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: StarFive Designware Mobile Storage Host Controller + +description: + StarFive uses the Synopsys designware mobile storage host controller + to interface a SoC with storage medium such as eMMC or SD/MMC cards. + +allOf: + - $ref: synopsys-dw-mshc-common.yaml# + +maintainers: + - William Qiu <william.qiu@xxxxxxxxxxxxxxxx> + +properties: + compatible: + const: starfive,jh7110-mmc + + reg: + maxItems: 1 + + clocks: + items: + - description: biu clock + - description: ciu clock + + clock-names: + items: + - const: biu + - const: ciu + + interrupts: + maxItems: 1 + + starfive,sysreg: + $ref: /schemas/types.yaml#/definitions/phandle-array + items: + - items: + - description: phandle to System Register Controller syscon node + - description: offset of SYS_SYSCONSAIF__SYSCFG register for MMC controller + - description: shift of SYS_SYSCONSAIF__SYSCFG register for MMC controller + - description: mask of SYS_SYSCONSAIF__SYSCFG register for MMC controller + description: + Should be four parameters, the phandle to System Register Controller + syscon node and the offset/shift/mask of SYS_SYSCONSAIF__SYSCFG register + for MMC controller. + +required: + - compatible + - reg + - clocks + - clock-names + - interrupts + - starfive,sysreg + +unevaluatedProperties: false + +examples: + - | + mmc@16010000 { + compatible = "starfive,jh7110-mmc"; + reg = <0x16010000 0x10000>; + clocks = <&syscrg 91>, + <&syscrg 93>; + clock-names = "biu","ciu"; + resets = <&syscrg 64>; + reset-names = "reset"; + interrupts = <74>; + fifo-depth = <32>; + fifo-watermark-aligned; + data-addr = <0>; + starfive,sysreg = <&sys_syscon 0x14 0x1a 0x7c000000>; + }; -- 2.34.1
