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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> Link: https://lore.kernel.org/r/20230215113249.47727-2-william.qiu@starfivetech.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
78 lines
1.9 KiB
YAML
78 lines
1.9 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/mmc/starfive,jh7110-mmc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: StarFive Designware Mobile Storage Host Controller
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description:
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StarFive uses the Synopsys designware mobile storage host controller
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to interface a SoC with storage medium such as eMMC or SD/MMC cards.
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allOf:
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- $ref: synopsys-dw-mshc-common.yaml#
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maintainers:
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- William Qiu <william.qiu@starfivetech.com>
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properties:
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compatible:
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const: starfive,jh7110-mmc
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reg:
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maxItems: 1
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clocks:
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items:
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- description: biu clock
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- description: ciu clock
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clock-names:
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items:
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- const: biu
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- const: ciu
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interrupts:
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maxItems: 1
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starfive,sysreg:
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$ref: /schemas/types.yaml#/definitions/phandle-array
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items:
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- items:
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- description: phandle to System Register Controller syscon node
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- description: offset of SYS_SYSCONSAIF__SYSCFG register for MMC controller
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- description: shift of SYS_SYSCONSAIF__SYSCFG register for MMC controller
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- description: mask of SYS_SYSCONSAIF__SYSCFG register for MMC controller
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description:
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Should be four parameters, the phandle to System Register Controller
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syscon node and the offset/shift/mask of SYS_SYSCONSAIF__SYSCFG register
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for MMC controller.
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required:
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- compatible
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- reg
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- clocks
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- clock-names
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- interrupts
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- starfive,sysreg
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unevaluatedProperties: false
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examples:
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- |
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mmc@16010000 {
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compatible = "starfive,jh7110-mmc";
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reg = <0x16010000 0x10000>;
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clocks = <&syscrg 91>,
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<&syscrg 93>;
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clock-names = "biu","ciu";
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resets = <&syscrg 64>;
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reset-names = "reset";
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interrupts = <74>;
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fifo-depth = <32>;
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fifo-watermark-aligned;
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data-addr = <0>;
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starfive,sysreg = <&sys_syscon 0x14 0x1a 0x7c000000>;
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};
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