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    Subject[PATCH v4 1/4] dt-bindings: mmc: Add StarFive MMC module
    Date
    Add documentation to describe StarFive designware mobile storage
    host controller driver.

    Signed-off-by: William Qiu <william.qiu@starfivetech.com>
    Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
    ---
    .../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@starfivetech.com>
    +
    +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
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