dt-bindings: net: convert emac_rockchip.txt to YAML
Convert emac_rockchip.txt to YAML. Changes against original bindings: Add mdio sub node. Add extra clock for rk3036 Signed-off-by: Johan Jonker <jbx6244@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220603163539.537-1-jbx6244@gmail.com
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Johan Jonker
Rob Herring
parent
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* ARC EMAC 10/100 Ethernet platform driver for Rockchip RK3036/RK3066/RK3188 SoCs
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Required properties:
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- compatible: should be "rockchip,<name>-emac"
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"rockchip,rk3036-emac": found on RK3036 SoCs
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"rockchip,rk3066-emac": found on RK3066 SoCs
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"rockchip,rk3188-emac": found on RK3188 SoCs
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- reg: Address and length of the register set for the device
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- interrupts: Should contain the EMAC interrupts
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- rockchip,grf: phandle to the syscon grf used to control speed and mode
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for emac.
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- phy: see ethernet.txt file in the same directory.
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- phy-mode: see ethernet.txt file in the same directory.
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Optional properties:
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- phy-supply: phandle to a regulator if the PHY needs one
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Clock handling:
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- clocks: Must contain an entry for each entry in clock-names.
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- clock-names: Shall be "hclk" for the host clock needed to calculate and set
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polling period of EMAC and "macref" for the reference clock needed to transfer
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data to and from the phy.
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Child nodes of the driver are the individual PHY devices connected to the
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MDIO bus. They must have a "reg" property given the PHY address on the MDIO bus.
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Examples:
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ethernet@10204000 {
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compatible = "rockchip,rk3188-emac";
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reg = <0xc0fc2000 0x3c>;
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interrupts = <6>;
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mac-address = [ 00 11 22 33 44 55 ];
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clocks = <&cru HCLK_EMAC>, <&cru SCLK_MAC>;
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clock-names = "hclk", "macref";
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pinctrl-names = "default";
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pinctrl-0 = <&emac_xfer>, <&emac_mdio>, <&phy_int>;
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rockchip,grf = <&grf>;
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phy = <&phy0>;
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phy-mode = "rmii";
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phy-supply = <&vcc_rmii>;
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#address-cells = <1>;
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#size-cells = <0>;
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phy0: ethernet-phy@0 {
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reg = <1>;
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};
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};
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@ -0,0 +1,115 @@
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# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/net/rockchip,emac.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Rockchip RK3036/RK3066/RK3188 Ethernet Media Access Controller (EMAC)
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maintainers:
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- Heiko Stuebner <heiko@sntech.de>
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properties:
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compatible:
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enum:
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- rockchip,rk3036-emac
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- rockchip,rk3066-emac
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- rockchip,rk3188-emac
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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: 2
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items:
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- description: host clock
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- description: reference clock
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- description: mac TX/RX clock
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clock-names:
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minItems: 2
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items:
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- const: hclk
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- const: macref
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- const: macclk
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rockchip,grf:
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$ref: /schemas/types.yaml#/definitions/phandle
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description:
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Phandle to the syscon GRF used to control speed and mode for the EMAC.
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phy-supply:
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description:
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Phandle to a regulator if the PHY needs one.
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mdio:
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$ref: mdio.yaml#
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unevaluatedProperties: false
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- clock-names
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- rockchip,grf
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- phy
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- phy-mode
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- mdio
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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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const: rockchip,rk3036-emac
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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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clock-names:
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minItems: 3
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else:
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properties:
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clocks:
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maxItems: 2
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clock-names:
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maxItems: 2
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/clock/rk3188-cru-common.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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ethernet@10204000 {
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compatible = "rockchip,rk3188-emac";
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reg = <0xc0fc2000 0x3c>;
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interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&cru HCLK_EMAC>, <&cru SCLK_MAC>;
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clock-names = "hclk", "macref";
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rockchip,grf = <&grf>;
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pinctrl-0 = <&emac_xfer>, <&emac_mdio>, <&phy_int>;
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pinctrl-names = "default";
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phy = <&phy0>;
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phy-mode = "rmii";
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phy-supply = <&vcc_rmii>;
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mdio {
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#address-cells = <1>;
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#size-cells = <0>;
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phy0: ethernet-phy@0 {
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reg = <1>;
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};
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};
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};
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