82cef0af29
The spi-mtk-nor controller of mt8173, mt8186 and mt8192 have their DT data. They don't use mt8173 as fallback. Using the fallback of mt8186 to enables the controllers to support mt8188. Not all of spi-mtk-nor controller need interrupt property, so we don't mark interrupt as required. Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com> Link: https://lore.kernel.org/r/20220715115443.4154-1-allen-kh.cheng@mediatek.com Signed-off-by: Mark Brown <broonie@kernel.org>
99 lines
2.4 KiB
YAML
99 lines
2.4 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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$id: http://devicetree.org/schemas/spi/mediatek,spi-mtk-nor.yaml#
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$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 <bayi.cheng@mediatek.com>
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- Chuanhong Guo <gch981213@gmail.com>
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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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