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98 lines
2.4 KiB
98 lines
2.4 KiB
# 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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$id: http://devicetree.org/schemas/spi/mediatek,spi-mtk-nor.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Serial NOR flash controller for MediaTek ARM SoCs |
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maintainers: |
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- Bayi Cheng <[email protected]> |
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- Chuanhong Guo <[email protected]> |
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description: | |
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This spi controller support single, dual, or quad mode transfer for |
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SPI NOR flash. There should be only one spi slave device following |
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generic spi bindings. It's not recommended to use this controller |
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for devices other than SPI NOR flash due to limited transfer |
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capability of this controller. |
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allOf: |
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- $ref: /schemas/spi/spi-controller.yaml# |
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properties: |
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compatible: |
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oneOf: |
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- enum: |
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- mediatek,mt8173-nor |
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- mediatek,mt8186-nor |
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- mediatek,mt8192-nor |
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- items: |
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- enum: |
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- mediatek,mt2701-nor |
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- mediatek,mt2712-nor |
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- mediatek,mt7622-nor |
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- mediatek,mt7623-nor |
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- mediatek,mt7629-nor |
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- mediatek,mt8195-nor |
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- const: mediatek,mt8173-nor |
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- items: |
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- enum: |
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- mediatek,mt8188-nor |
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- const: mediatek,mt8186-nor |
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reg: |
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maxItems: 1 |
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interrupts: |
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maxItems: 1 |
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clocks: |
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minItems: 2 |
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items: |
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- description: clock used for spi bus |
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- description: clock used for controller |
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- description: clock used for nor dma bus. this depends on hardware |
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design, so this is optional. |
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- description: clock used for controller axi slave bus. |
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this depends on hardware design, so it is optional. |
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clock-names: |
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minItems: 2 |
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items: |
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- const: spi |
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- const: sf |
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- const: axi |
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- const: axi_s |
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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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unevaluatedProperties: false |
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examples: |
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- | |
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#include <dt-bindings/clock/mt8173-clk.h> |
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soc { |
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#address-cells = <2>; |
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#size-cells = <2>; |
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nor_flash: spi@1100d000 { |
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compatible = "mediatek,mt8173-nor"; |
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reg = <0 0x1100d000 0 0xe0>; |
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interrupts = <1>; |
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clocks = <&pericfg CLK_PERI_SPI>, <&topckgen CLK_TOP_SPINFI_IFR_SEL>; |
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clock-names = "spi", "sf"; |
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#address-cells = <1>; |
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#size-cells = <0>; |
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flash@0 { |
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compatible = "jedec,spi-nor"; |
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reg = <0>; |
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}; |
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}; |
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};
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