96 lines
2.7 KiB
Diff
96 lines
2.7 KiB
Diff
From fc157f3d411ac570e8261e4238c6e6aac74a6cc6 Mon Sep 17 00:00:00 2001
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From: William Qiu <william.qiu@starfivetech.com>
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Date: Wed, 15 Feb 2023 19:32:46 +0800
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Subject: [PATCH 107/122] dt-bindings: mmc: Add StarFive MMC module
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Add documentation to describe StarFive designware mobile storage
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host controller driver.
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Signed-off-by: William Qiu <william.qiu@starfivetech.com>
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Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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---
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.../bindings/mmc/starfive,jh7110-mmc.yaml | 77 +++++++++++++++++++
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1 file changed, 77 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/mmc/starfive,jh7110-mmc.yaml
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/mmc/starfive,jh7110-mmc.yaml
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@@ -0,0 +1,77 @@
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+# 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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+
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+title: StarFive Designware Mobile Storage Host Controller
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+
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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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+
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+allOf:
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+ - $ref: synopsys-dw-mshc-common.yaml#
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+
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+maintainers:
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+ - William Qiu <william.qiu@starfivetech.com>
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+
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+properties:
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+ compatible:
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+ const: starfive,jh7110-mmc
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+
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+ reg:
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+ maxItems: 1
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+
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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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+
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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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+
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+ interrupts:
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+ maxItems: 1
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+
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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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+
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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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+
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+unevaluatedProperties: false
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+
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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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