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Merge branch 'net-convert-gianfar-triple-speed-ethernet-controller-bindings-to-yaml'
J. Neuschäfer says: ==================== net: Convert Gianfar (Triple Speed Ethernet Controller) bindings to YAML The aim of this series is to modernize the device tree bindings for the Freescale "Gianfar" ethernet controller (a.k.a. TSEC, Triple Speed Ethernet Controller) by converting them to YAML. v1: https://lore.kernel.org/20250220-gianfar-yaml-v1-0-0ba97fd1ef92@posteo.net ==================== Link: https://patch.msgid.link/20250228-gianfar-yaml-v2-0-6beeefbd4818@posteo.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski
112
Documentation/devicetree/bindings/net/fsl,gianfar-mdio.yaml
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112
Documentation/devicetree/bindings/net/fsl,gianfar-mdio.yaml
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@@ -0,0 +1,112 @@
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# 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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$id: http://devicetree.org/schemas/net/fsl,gianfar-mdio.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Freescale Gianfar (TSEC) MDIO Device
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description:
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This binding describes the MDIO is a bus to which the PHY devices are
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connected. For each device that exists on this bus, a child node should be
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created.
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Some TSECs are associated with an internal Ten-Bit Interface (TBI) PHY. This
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PHY is accessed through the local MDIO bus. These buses are defined similarly
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to the mdio buses, except they are compatible with "fsl,gianfar-tbi". The TBI
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PHYs underneath them are similar to normal PHYs, but the reg property is
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considered instructive, rather than descriptive. The reg property should be
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chosen so it doesn't interfere with other PHYs on the bus.
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maintainers:
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- J. Neuschäfer <j.ne@posteo.net>
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# This is needed to distinguish gianfar.yaml and gianfar-mdio.yaml, because
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# both use compatible = "gianfar" (with different device_type values)
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select:
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oneOf:
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- properties:
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compatible:
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contains:
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const: gianfar
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device_type:
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const: mdio
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required:
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- device_type
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- properties:
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compatible:
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contains:
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enum:
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- fsl,gianfar-tbi
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- fsl,gianfar-mdio
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- fsl,etsec2-tbi
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- fsl,etsec2-mdio
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- fsl,ucc-mdio
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- ucc_geth_phy
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required:
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- compatible
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properties:
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compatible:
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enum:
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- fsl,gianfar-tbi
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- fsl,gianfar-mdio
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- fsl,etsec2-tbi
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- fsl,etsec2-mdio
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- fsl,ucc-mdio
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- gianfar
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- ucc_geth_phy
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reg:
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minItems: 1
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items:
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- description:
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Offset and length of the register set for the device
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- description:
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Optionally, the offset and length of the TBIPA register (TBI PHY
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address register). If TBIPA register is not specified, the driver
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will attempt to infer it from the register set specified (your
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mileage may vary).
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device_type:
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const: mdio
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required:
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- reg
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- "#address-cells"
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- "#size-cells"
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allOf:
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- $ref: mdio.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: ucc_geth_phy
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then:
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required:
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- device_type
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unevaluatedProperties: false
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examples:
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- |
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soc {
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#address-cells = <1>;
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#size-cells = <1>;
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mdio@24520 {
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reg = <0x24520 0x20>;
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compatible = "fsl,gianfar-mdio";
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#address-cells = <1>;
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#size-cells = <0>;
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ethernet-phy@0 {
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reg = <0>;
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};
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};
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};
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248
Documentation/devicetree/bindings/net/fsl,gianfar.yaml
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248
Documentation/devicetree/bindings/net/fsl,gianfar.yaml
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@@ -0,0 +1,248 @@
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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/fsl,gianfar.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Freescale Three-Speed Ethernet Controller (TSEC), "Gianfar"
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maintainers:
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- J. Neuschäfer <j.ne@posteo.net>
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# This is needed to distinguish gianfar.yaml and gianfar-mdio.yaml, because
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# both use compatible = "gianfar" (with different device_type values)
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select:
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oneOf:
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- properties:
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compatible:
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contains:
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const: gianfar
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device_type:
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const: network
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required:
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- device_type
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- properties:
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compatible:
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const: fsl,etsec2
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required:
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- compatible
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properties:
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compatible:
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enum:
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- gianfar
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- fsl,etsec2
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device_type:
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const: network
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model:
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enum:
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- FEC
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- TSEC
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- eTSEC
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reg:
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maxItems: 1
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ranges: true
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"#address-cells":
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enum: [ 1, 2 ]
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"#size-cells":
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enum: [ 1, 2 ]
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cell-index:
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$ref: /schemas/types.yaml#/definitions/uint32
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interrupts:
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minItems: 1
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items:
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- description: Transmit interrupt or single combined interrupt
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- description: Receive interrupt
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- description: Error interrupt
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dma-coherent: true
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fsl,magic-packet:
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type: boolean
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description:
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If present, indicates that the hardware supports waking up via magic packet.
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fsl,wake-on-filer:
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type: boolean
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description:
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If present, indicates that the hardware supports waking up by Filer
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General Purpose Interrupt (FGPI) asserted on the Rx int line. This is
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an advanced power management capability allowing certain packet types
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(user) defined by filer rules to wake up the system.
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bd-stash:
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type: boolean
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description:
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If present, indicates that the hardware supports stashing buffer
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descriptors in the L2.
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rx-stash-len:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Denotes the number of bytes of a received buffer to stash in the L2.
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rx-stash-idx:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Denotes the index of the first byte from the received buffer to stash in
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the L2.
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fsl,num_rx_queues:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Number of receive queues
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const: 8
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fsl,num_tx_queues:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Number of transmit queues
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const: 8
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tbi-handle:
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$ref: /schemas/types.yaml#/definitions/phandle
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description: Reference (phandle) to the TBI node
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required:
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- compatible
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- model
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patternProperties:
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"^mdio@[0-9a-f]+$":
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$ref: /schemas/net/fsl,gianfar-mdio.yaml#
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allOf:
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- $ref: ethernet-controller.yaml#
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# eTSEC2 controller nodes have "queue group" subnodes and don't need a "reg"
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# property.
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- if:
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properties:
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compatible:
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contains:
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const: fsl,etsec2
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then:
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patternProperties:
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"^queue-group@[0-9a-f]+$":
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type: object
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properties:
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reg:
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maxItems: 1
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interrupts:
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items:
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- description: Transmit interrupt
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- description: Receive interrupt
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- description: Error interrupt
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required:
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- reg
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- interrupts
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additionalProperties: false
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else:
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required:
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- reg
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# TSEC and eTSEC devices require three interrupts
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- if:
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properties:
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model:
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contains:
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enum: [ TSEC, eTSEC ]
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then:
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properties:
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interrupts:
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items:
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- description: Transmit interrupt
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- description: Receive interrupt
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- description: Error interrupt
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unevaluatedProperties: false
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examples:
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- |
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ethernet@24000 {
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device_type = "network";
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model = "TSEC";
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compatible = "gianfar";
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reg = <0x24000 0x1000>;
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local-mac-address = [ 00 00 00 00 00 00 ];
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interrupts = <29 2>, <30 2>, <34 2>;
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interrupt-parent = <&mpic>;
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phy-handle = <&phy0>;
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};
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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ethernet@24000 {
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compatible = "gianfar";
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reg = <0x24000 0x1000>;
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ranges = <0x0 0x24000 0x1000>;
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#address-cells = <1>;
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#size-cells = <1>;
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cell-index = <0>;
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device_type = "network";
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model = "eTSEC";
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local-mac-address = [ 00 00 00 00 00 00 ];
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interrupts = <32 IRQ_TYPE_LEVEL_LOW>,
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<33 IRQ_TYPE_LEVEL_LOW>,
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<34 IRQ_TYPE_LEVEL_LOW>;
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interrupt-parent = <&ipic>;
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mdio@520 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "fsl,gianfar-mdio";
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reg = <0x520 0x20>;
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};
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};
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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bus {
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#address-cells = <2>;
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#size-cells = <2>;
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ethernet {
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compatible = "fsl,etsec2";
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ranges;
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device_type = "network";
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#address-cells = <2>;
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#size-cells = <2>;
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interrupt-parent = <&gic>;
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model = "eTSEC";
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fsl,magic-packet;
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dma-coherent;
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queue-group@2d10000 {
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reg = <0x0 0x2d10000 0x0 0x1000>;
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interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
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};
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queue-group@2d14000 {
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reg = <0x0 0x2d14000 0x0 0x1000>;
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interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 149 IRQ_TYPE_LEVEL_HIGH>;
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};
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};
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};
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...
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@@ -1,88 +1,14 @@
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* MDIO IO device
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The MDIO is a bus to which the PHY devices are connected. For each
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device that exists on this bus, a child node should be created. See
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the definition of the PHY node in booting-without-of.txt for an example
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of how to define a PHY.
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Required properties:
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- reg : Offset and length of the register set for the device, and optionally
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the offset and length of the TBIPA register (TBI PHY address
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register). If TBIPA register is not specified, the driver will
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attempt to infer it from the register set specified (your mileage may
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vary).
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- compatible : Should define the compatible device type for the
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mdio. Currently supported strings/devices are:
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- "fsl,gianfar-tbi"
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- "fsl,gianfar-mdio"
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- "fsl,etsec2-tbi"
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- "fsl,etsec2-mdio"
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- "fsl,ucc-mdio"
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- "fsl,fman-mdio"
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When device_type is "mdio", the following strings are also considered:
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- "gianfar"
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- "ucc_geth_phy"
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Example:
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mdio@24520 {
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reg = <24520 20>;
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compatible = "fsl,gianfar-mdio";
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ethernet-phy@0 {
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......
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};
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};
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Refer to Documentation/devicetree/bindings/net/fsl,gianfar-mdio.yaml
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* TBI Internal MDIO bus
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As of this writing, every tsec is associated with an internal TBI PHY.
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This PHY is accessed through the local MDIO bus. These buses are defined
|
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similarly to the mdio buses, except they are compatible with "fsl,gianfar-tbi".
|
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The TBI PHYs underneath them are similar to normal PHYs, but the reg property
|
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is considered instructive, rather than descriptive. The reg property should
|
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be chosen so it doesn't interfere with other PHYs on the bus.
|
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Refer to Documentation/devicetree/bindings/net/fsl,gianfar-mdio.yaml
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* Gianfar-compatible ethernet nodes
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Properties:
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- device_type : Should be "network"
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- model : Model of the device. Can be "TSEC", "eTSEC", or "FEC"
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- compatible : Should be "gianfar"
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- reg : Offset and length of the register set for the device
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- interrupts : For FEC devices, the first interrupt is the device's
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interrupt. For TSEC and eTSEC devices, the first interrupt is
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transmit, the second is receive, and the third is error.
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- phy-handle : See ethernet.txt file in the same directory.
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- fixed-link : See fixed-link.txt in the same directory.
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- phy-connection-type : See ethernet.txt file in the same directory.
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This property is only really needed if the connection is of type
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"rgmii-id", as all other connection types are detected by hardware.
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- fsl,magic-packet : If present, indicates that the hardware supports
|
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waking up via magic packet.
|
||||
- fsl,wake-on-filer : If present, indicates that the hardware supports
|
||||
waking up by Filer General Purpose Interrupt (FGPI) asserted on the
|
||||
Rx int line. This is an advanced power management capability allowing
|
||||
certain packet types (user) defined by filer rules to wake up the system.
|
||||
- bd-stash : If present, indicates that the hardware supports stashing
|
||||
buffer descriptors in the L2.
|
||||
- rx-stash-len : Denotes the number of bytes of a received buffer to stash
|
||||
in the L2.
|
||||
- rx-stash-idx : Denotes the index of the first byte from the received
|
||||
buffer to stash in the L2.
|
||||
|
||||
Example:
|
||||
ethernet@24000 {
|
||||
device_type = "network";
|
||||
model = "TSEC";
|
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compatible = "gianfar";
|
||||
reg = <0x24000 0x1000>;
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||||
local-mac-address = [ 00 E0 0C 00 73 00 ];
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interrupts = <29 2 30 2 34 2>;
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||||
interrupt-parent = <&mpic>;
|
||||
phy-handle = <&phy0>
|
||||
};
|
||||
Refer to Documentation/devicetree/bindings/net/fsl,gianfar.yaml
|
||||
|
||||
* Gianfar PTP clock nodes
|
||||
|
||||
|
||||
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