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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>
135 lines
4.2 KiB
YAML
135 lines
4.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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# Copyright 2019 BayLibre, SAS
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/net/amlogic,meson-dwmac.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: Amlogic Meson DWMAC Ethernet controller
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maintainers:
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- Neil Armstrong <narmstrong@baylibre.com>
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- Martin Blumenstingl <martin.blumenstingl@googlemail.com>
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# We need a select here so we don't match all nodes with 'snps,dwmac'
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select:
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properties:
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compatible:
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contains:
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enum:
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- amlogic,meson6-dwmac
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- amlogic,meson8b-dwmac
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- amlogic,meson8m2-dwmac
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- amlogic,meson-gxbb-dwmac
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- amlogic,meson-axg-dwmac
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- amlogic,meson-g12a-dwmac
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required:
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- compatible
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allOf:
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- $ref: "snps,dwmac.yaml#"
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- if:
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properties:
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compatible:
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contains:
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enum:
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- amlogic,meson8b-dwmac
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- amlogic,meson8m2-dwmac
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- amlogic,meson-gxbb-dwmac
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- amlogic,meson-axg-dwmac
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- amlogic,meson-g12a-dwmac
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then:
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properties:
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clocks:
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minItems: 3
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maxItems: 4
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items:
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- description: GMAC main clock
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- description: First parent clock of the internal mux
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- description: Second parent clock of the internal mux
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- description: The clock which drives the timing adjustment logic
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clock-names:
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minItems: 3
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maxItems: 4
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items:
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- const: stmmaceth
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- const: clkin0
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- const: clkin1
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- const: timing-adjustment
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amlogic,tx-delay-ns:
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$ref: /schemas/types.yaml#definitions/uint32
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description:
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The internal RGMII TX clock delay (provided by this driver) in
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nanoseconds. Allowed values are 0ns, 2ns, 4ns, 6ns.
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When phy-mode is set to "rgmii" then the TX delay should be
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explicitly configured. When not configured a fallback of 2ns is
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used. When the phy-mode is set to either "rgmii-id" or "rgmii-txid"
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the TX clock delay is already provided by the PHY. In that case
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this property should be set to 0ns (which disables the TX clock
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delay in the MAC to prevent the clock from going off because both
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PHY and MAC are adding a delay).
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Any configuration is ignored when the phy-mode is set to "rmii".
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amlogic,rx-delay-ns:
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enum:
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- 0
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- 2
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default: 0
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description:
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The internal RGMII RX clock delay (provided by this IP block) in
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nanoseconds. When phy-mode is set to "rgmii" then the RX delay
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should be explicitly configured. When the phy-mode is set to
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either "rgmii-id" or "rgmii-rxid" the RX clock delay is already
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provided by the PHY. Any configuration is ignored when the
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phy-mode is set to "rmii".
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properties:
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compatible:
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additionalItems: true
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maxItems: 3
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items:
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- enum:
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- amlogic,meson6-dwmac
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- amlogic,meson8b-dwmac
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- amlogic,meson8m2-dwmac
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- amlogic,meson-gxbb-dwmac
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- amlogic,meson-axg-dwmac
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- amlogic,meson-g12a-dwmac
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contains:
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enum:
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- snps,dwmac-3.70a
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- snps,dwmac
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reg:
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items:
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- description:
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The first register range should be the one of the DWMAC controller
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- description:
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The second range is is for the Amlogic specific configuration
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(for example the PRG_ETHERNET register range on Meson8b and newer)
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required:
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- compatible
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- reg
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- interrupts
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- interrupt-names
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- clocks
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- clock-names
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- phy-mode
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unevaluatedProperties: false
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examples:
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- |
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ethmac: ethernet@c9410000 {
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compatible = "amlogic,meson-gxbb-dwmac", "snps,dwmac";
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reg = <0xc9410000 0x10000>, <0xc8834540 0x8>;
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interrupts = <8>;
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interrupt-names = "macirq";
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clocks = <&clk_eth>, <&clk_fclk_div2>, <&clk_mpll2>, <&clk_fclk_div2>;
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clock-names = "stmmaceth", "clkin0", "clkin1", "timing-adjustment";
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phy-mode = "rgmii";
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};
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