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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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fc6c8af6d7
In Aspeed AST2600 design, the MAC internal delay on MAC register cannot fully reset the RMII interfaces, it may cause the RMII incompletely. Therefore, we need to add resets property to do SoC-level reset line to reset the whole MAC function that includes ftgmac, RGMII and RMII. Signed-off-by: Jacky Chou <jacky_chou@aspeedtech.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/20250709070809.2560688-2-jacky_chou@aspeedtech.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
121 lines
2.4 KiB
YAML
121 lines
2.4 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/net/faraday,ftgmac100.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Faraday Technology FTGMAC100 gigabit ethernet controller
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maintainers:
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- Po-Yu Chuang <ratbert@faraday-tech.com>
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properties:
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compatible:
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oneOf:
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- const: faraday,ftgmac100
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- items:
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- enum:
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- aspeed,ast2400-mac
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- aspeed,ast2500-mac
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- aspeed,ast2600-mac
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- const: faraday,ftgmac100
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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: 1
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items:
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- description: MAC IP clock
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- description: RMII RCLK gate for AST2500/2600
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resets:
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maxItems: 1
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clock-names:
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minItems: 1
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items:
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- const: MACCLK
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- const: RCLK
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phy-mode:
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enum:
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- rgmii
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- rgmii-id
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- rgmii-rxid
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- rgmii-txid
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- rmii
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phy-handle: true
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use-ncsi:
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description:
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Use the NC-SI stack instead of an MDIO PHY. Currently assumes
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rmii (100bT) but kept as a separate property in case NC-SI grows support
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for a gigabit link.
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type: boolean
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no-hw-checksum:
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description:
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Used to disable HW checksum support. Here for backward
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compatibility as the driver now should have correct defaults based on
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the SoC.
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type: boolean
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deprecated: true
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mdio:
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$ref: /schemas/net/mdio.yaml#
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required:
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- compatible
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- reg
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- interrupts
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allOf:
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- $ref: ethernet-controller.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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- aspeed,ast2600-mac
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then:
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properties:
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resets: true
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else:
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properties:
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resets: false
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unevaluatedProperties: false
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examples:
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- |
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ethernet@1e660000 {
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compatible = "aspeed,ast2500-mac", "faraday,ftgmac100";
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reg = <0x1e660000 0x180>;
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interrupts = <2>;
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use-ncsi;
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};
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ethernet@1e680000 {
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compatible = "aspeed,ast2500-mac", "faraday,ftgmac100";
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reg = <0x1e680000 0x180>;
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interrupts = <2>;
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phy-handle = <&phy>;
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phy-mode = "rgmii";
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mdio {
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#address-cells = <1>;
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#size-cells = <0>;
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phy: ethernet-phy@1 {
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compatible = "ethernet-phy-ieee802.3-c22";
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reg = <1>;
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};
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};
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};
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