diff options
author | Ikjoon Jang <ikjn@chromium.org> | 2020-08-26 11:54:50 +0300 |
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committer | Mark Brown <broonie@kernel.org> | 2020-08-26 22:15:35 +0300 |
commit | 043ebcf3204ca1a0ce0d03cb7dc6e0d63d2cf512 (patch) | |
tree | 5c12b9a78dd279e0a9e56a941422020bf2b3f51a /Documentation/devicetree/bindings/spi | |
parent | 3a2fd4011a1ecec361498301a27d79d5fef255de (diff) | |
download | linux-043ebcf3204ca1a0ce0d03cb7dc6e0d63d2cf512.tar.xz |
dt-bindings: spi: Convert spi-mtk-nor to json-schema
Convert Mediatek ARM SOC's serial NOR flash controller binding
to json-schema format.
Signed-off-by: Ikjoon Jang <ikjn@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200826085450.508556-1-ikjn@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/spi')
-rw-r--r-- | Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml | 85 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/spi/spi-mtk-nor.txt | 47 |
2 files changed, 85 insertions, 47 deletions
diff --git a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml new file mode 100644 index 000000000000..42c9205ac991 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml @@ -0,0 +1,85 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/mediatek,spi-mtk-nor.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Serial NOR flash controller for MediaTek ARM SoCs + +maintainers: + - Bayi Cheng <bayi.cheng@mediatek.com> + - Chuanhong Guo <gch981213@gmail.com> + +description: | + This spi controller support single, dual, or quad mode transfer for + SPI NOR flash. There should be only one spi slave device following + generic spi bindings. It's not recommended to use this controller + for devices other than SPI NOR flash due to limited transfer + capability of this controller. + +allOf: + - $ref: /spi/spi-controller.yaml# + +properties: + compatible: + oneOf: + - items: + - enum: + - mediatek,mt2701-nor + - mediatek,mt2712-nor + - mediatek,mt7622-nor + - mediatek,mt7623-nor + - mediatek,mt7629-nor + - enum: + - mediatek,mt8173-nor + - items: + - const: mediatek,mt8173-nor + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: clock used for spi bus + - description: clock used for controller + + clock-names: + items: + - const: spi + - const: sf + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/clock/mt8173-clk.h> + + soc { + #address-cells = <2>; + #size-cells = <2>; + + nor_flash: spi@1100d000 { + compatible = "mediatek,mt8173-nor"; + reg = <0 0x1100d000 0 0xe0>; + interrupts = <&spi_flash_irq>; + clocks = <&pericfg CLK_PERI_SPI>, <&topckgen CLK_TOP_SPINFI_IFR_SEL>; + clock-names = "spi", "sf"; + #address-cells = <1>; + #size-cells = <0>; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + }; + }; + }; + diff --git a/Documentation/devicetree/bindings/spi/spi-mtk-nor.txt b/Documentation/devicetree/bindings/spi/spi-mtk-nor.txt deleted file mode 100644 index 984ae7fd4f94..000000000000 --- a/Documentation/devicetree/bindings/spi/spi-mtk-nor.txt +++ /dev/null @@ -1,47 +0,0 @@ -* Serial NOR flash controller for MediaTek ARM SoCs - -Required properties: -- compatible: For mt8173, compatible should be "mediatek,mt8173-nor", - and it's the fallback compatible for other Soc. - For every other SoC, should contain both the SoC-specific compatible - string and "mediatek,mt8173-nor". - The possible values are: - "mediatek,mt2701-nor", "mediatek,mt8173-nor" - "mediatek,mt2712-nor", "mediatek,mt8173-nor" - "mediatek,mt7622-nor", "mediatek,mt8173-nor" - "mediatek,mt7623-nor", "mediatek,mt8173-nor" - "mediatek,mt7629-nor", "mediatek,mt8173-nor" - "mediatek,mt8173-nor" -- reg: physical base address and length of the controller's register -- interrupts: Interrupt number used by the controller. -- clocks: the phandle of the clocks needed by the nor controller -- clock-names: the names of the clocks - the clocks should be named "spi" and "sf". "spi" is used for spi bus, - and "sf" is used for controller, these are the clocks witch - hardware needs to enabling nor flash and nor flash controller. - See Documentation/devicetree/bindings/clock/clock-bindings.txt for details. -- #address-cells: should be <1> -- #size-cells: should be <0> - -There should be only one spi slave device following generic spi bindings. -It's not recommended to use this controller for devices other than SPI NOR -flash due to limited transfer capability of this controller. - -Example: - -nor_flash: spi@1100d000 { - compatible = "mediatek,mt8173-nor"; - reg = <0 0x1100d000 0 0xe0>; - interrupts = <&spi_flash_irq>; - clocks = <&pericfg CLK_PERI_SPI>, - <&topckgen CLK_TOP_SPINFI_IFR_SEL>; - clock-names = "spi", "sf"; - #address-cells = <1>; - #size-cells = <0>; - - flash@0 { - compatible = "jedec,spi-nor"; - reg = <0>; - }; -}; - |