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Add "aspeed,ast2700-mdio" compatible to the binding schema with a fallback to "aspeed,ast2600-mdio". Although the MDIO controller on AST2700 is functionally the same as the one on AST2600, it's good practice to add a SoC-specific compatible for new silicon. This allows future driver updates to handle any 2700-specific integration issues without requiring devicetree changes or complex runtime detection logic. For now, the driver continues to bind via the existing "aspeed,ast2600-mdio" compatible, so no driver changes are needed. Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Jacky Chou <jacky_chou@aspeedtech.com> Link: https://patch.msgid.link/20251120-aspeed_mdio_ast2700-v2-1-0d722bfb2c54@aspeedtech.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
59 lines
1.3 KiB
YAML
59 lines
1.3 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-or-later
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/net/aspeed,ast2600-mdio.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: ASPEED AST2600 MDIO Controller
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maintainers:
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- Andrew Jeffery <andrew@aj.id.au>
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description: |+
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The ASPEED AST2600 MDIO controller is the third iteration of ASPEED's MDIO
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bus register interface, this time also separating out the controller from the
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MAC.
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allOf:
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- $ref: mdio.yaml#
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properties:
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compatible:
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oneOf:
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- const: aspeed,ast2600-mdio
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- items:
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- enum:
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- aspeed,ast2700-mdio
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- const: aspeed,ast2600-mdio
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reg:
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maxItems: 1
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description: The register range of the MDIO controller instance
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resets:
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maxItems: 1
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required:
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- compatible
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- reg
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- "#address-cells"
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- "#size-cells"
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/clock/ast2600-clock.h>
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mdio0: mdio@1e650000 {
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compatible = "aspeed,ast2600-mdio";
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reg = <0x1e650000 0x8>;
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#address-cells = <1>;
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#size-cells = <0>;
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resets = <&syscon ASPEED_RESET_MII>;
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ethphy0: ethernet-phy@0 {
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compatible = "ethernet-phy-ieee802.3-c22";
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reg = <0>;
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};
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};
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