6fdc6e23a7
This doesn't yet do anything in the tools, but make it explicit so we can check either 'unevaluatedProperties' or 'additionalProperties' is present in schemas. 'unevaluatedProperties' is appropriate when including another schema (via '$ref') and all possible properties and/or child nodes are not explicitly listed in the schema with the '$ref'. This is in preparation to add a meta-schema to check for missing 'unevaluatedProperties' or 'additionalProperties'. This has been a constant source of review issues. Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Wolfram Sang <wsa@kernel.org> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-By: Vinod Koul <vkoul@kernel.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Link: https://lore.kernel.org/r/20201005183830.486085-2-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
91 lines
2.3 KiB
YAML
91 lines
2.3 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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$id: http://devicetree.org/schemas/memory-controllers/renesas,rpc-if.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Renesas Reduced Pin Count Interface (RPC-IF)
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maintainers:
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- Sergei Shtylyov <sergei.shtylyov@gmail.com>
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description: |
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Renesas RPC-IF allows a SPI flash or HyperFlash connected to the SoC to
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be accessed via the external address space read mode or the manual mode.
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The flash chip itself should be represented by a subnode of the RPC-IF node.
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The flash interface is selected based on the "compatible" property of this
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subnode:
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- if it contains "jedec,spi-nor", then SPI is used;
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- if it contains "cfi-flash", then HyperFlash is used.
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allOf:
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- $ref: "/schemas/spi/spi-controller.yaml#"
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properties:
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compatible:
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items:
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- enum:
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- renesas,r8a77970-rpc-if # R-Car V3M
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- renesas,r8a77980-rpc-if # R-Car V3H
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- renesas,r8a77995-rpc-if # R-Car D3
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- const: renesas,rcar-gen3-rpc-if # a generic R-Car gen3 device
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reg:
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items:
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- description: RPC-IF registers
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- description: direct mapping read mode area
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- description: write buffer area
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reg-names:
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items:
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- const: regs
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- const: dirmap
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- const: wbuf
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clocks:
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maxItems: 1
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power-domains:
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maxItems: 1
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resets:
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maxItems: 1
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patternProperties:
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"flash@[0-9a-f]+$":
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type: object
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properties:
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compatible:
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enum:
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- cfi-flash
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- jedec,spi-nor
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/clock/renesas-cpg-mssr.h>
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#include <dt-bindings/power/r8a77995-sysc.h>
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spi@ee200000 {
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compatible = "renesas,r8a77995-rpc-if", "renesas,rcar-gen3-rpc-if";
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reg = <0xee200000 0x200>,
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<0x08000000 0x4000000>,
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<0xee208000 0x100>;
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reg-names = "regs", "dirmap", "wbuf";
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clocks = <&cpg CPG_MOD 917>;
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power-domains = <&sysc R8A77995_PD_ALWAYS_ON>;
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resets = <&cpg 917>;
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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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spi-max-frequency = <40000000>;
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spi-tx-bus-width = <1>;
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spi-rx-bus-width = <1>;
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};
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};
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