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Message-Id: <20250220-gianfar-yaml-v1-3-0ba97fd1ef92@posteo.net>
Date: Thu, 20 Feb 2025 18:29:23 +0100
From: J. Neuschäfer via B4 Relay <devnull+j.ne.posteo.net@...nel.org>
To: Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Claudiu Manoil <claudiu.manoil@....com>
Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
J. Neuschäfer <j.ne@...teo.net>
Subject: [PATCH 3/3] dt-bindings: net: Convert fsl,gianfar to YAML
From: "J. Neuschäfer" <j.ne@...teo.net>
Add a binding for the "Gianfar" ethernet controller, also known as
TSEC/eTSEC.
Signed-off-by: J. Neuschäfer <j.ne@...teo.net>
---
.../devicetree/bindings/net/fsl,gianfar.yaml | 242 +++++++++++++++++++++
.../devicetree/bindings/net/fsl-tsec-phy.txt | 39 +---
2 files changed, 243 insertions(+), 38 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/fsl,gianfar.yaml b/Documentation/devicetree/bindings/net/fsl,gianfar.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..dc75ceb5dc6fdee8765bb17273f394d01cce0710
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/fsl,gianfar.yaml
@@ -0,0 +1,242 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/fsl,gianfar.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Three-Speed Ethernet Controller (TSEC), "Gianfar"
+
+maintainers:
+ - J. Neuschäfer <j.ne@...teo.net>
+
+properties:
+ compatible:
+ enum:
+ - gianfar
+ - fsl,etsec2
+
+ device_type:
+ const: network
+
+ model:
+ enum:
+ - FEC
+ - TSEC
+ - eTSEC
+
+ reg:
+ maxItems: 1
+
+ ranges: true
+
+ "#address-cells": true
+
+ "#size-cells": true
+
+ cell-index:
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ interrupts:
+ maxItems: 3
+
+ dma-coherent:
+ type: boolean
+
+ fsl,magic-packet:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ If present, indicates that the hardware supports waking up via magic packet.
+
+ fsl,wake-on-filer:
+ type: boolean
+ description:
+ 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:
+ type: boolean
+ description:
+ If present, indicates that the hardware supports stashing buffer
+ descriptors in the L2.
+
+ rx-stash-len:
+ type: boolean
+ description:
+ Denotes the number of bytes of a received buffer to stash in the L2.
+
+ tx-stash-len:
+ type: boolean
+ description:
+ Denotes the index of the first byte from the received buffer to stash in
+ the L2.
+
+ fsl,num_rx_queues:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Number of receive queues
+
+ fsl,num_tx_queues:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Number of transmit queues
+
+ tbi-handle:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: Reference (phandle) to the TBI node
+
+required:
+ - compatible
+ - model
+
+patternProperties:
+ "^mdio@[0-9a-f]+$":
+ type: object
+ # TODO: reference to gianfar MDIO binding
+
+allOf:
+ - $ref: ethernet-controller.yaml#
+
+ # compatible = "gianfar" requires device_type = "network"
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: gianfar
+ then:
+ required:
+ - device_type
+
+ # eTSEC2 controller nodes have "queue group" subnodes and don't need a "reg"
+ # property.
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: fsl,etsec2
+ then:
+ patternProperties:
+ "^queue-group@[0-9a-f]+$":
+ type: object
+
+ properties:
+ "#address-cells": true
+
+ "#size-cells": true
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 3
+
+ required:
+ - reg
+ - interrupts
+
+ additionalProperties: false
+ else:
+ required:
+ - reg
+
+ # TSEC and eTSEC devices require three interrupts
+ - if:
+ properties:
+ model:
+ contains:
+ enum: [ TSEC, eTSEC ]
+ then:
+ properties:
+ interrupts:
+ items:
+ - description: Transmit interrupt
+ - description: Receive interrupt
+ - description: Error interrupt
+
+
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ ethernet@...00 {
+ device_type = "network";
+ model = "TSEC";
+ compatible = "gianfar";
+ reg = <0x24000 0x1000>;
+ local-mac-address = [ 00 E0 0C 00 73 00 ];
+ interrupts = <29 2>, <30 2>, <34 2>;
+ interrupt-parent = <&mpic>;
+ phy-handle = <&phy0>;
+ };
+
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ soc1 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ethernet@...00 {
+ compatible = "gianfar";
+ reg = <0x24000 0x1000>;
+ ranges = <0x0 0x24000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ cell-index = <0>;
+ device_type = "network";
+ model = "eTSEC";
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ interrupts = <32 IRQ_TYPE_LEVEL_LOW>,
+ <33 IRQ_TYPE_LEVEL_LOW>,
+ <34 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-parent = <&ipic>;
+
+ mdio@520 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,gianfar-mdio";
+ reg = <0x520 0x20>;
+ };
+ };
+ };
+
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ soc2 {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ ethernet {
+ compatible = "fsl,etsec2";
+ ranges;
+ device_type = "network";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ interrupt-parent = <&gic>;
+ model = "eTSEC";
+ fsl,magic-packet;
+ dma-coherent;
+
+ queue-group@...0000 {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ reg = <0x0 0x2d10000 0x0 0x1000>;
+ interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ queue-group@...4000 {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ reg = <0x0 0x2d14000 0x0 0x1000>;
+ interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 149 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/net/fsl-tsec-phy.txt b/Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
index 0e55e0af7d6f59cfb571dd3fcff704b7f4c140d2..b18bb4c997ea3a221e599f694d9a28692cbcaa7c 100644
--- a/Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
+++ b/Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
@@ -8,44 +8,7 @@ Refer to Documentation/devicetree/bindings/net/fsl,gianfar-mdio.yaml
* Gianfar-compatible ethernet nodes
-Properties:
-
- - device_type : Should be "network"
- - model : Model of the device. Can be "TSEC", "eTSEC", or "FEC"
- - compatible : Should be "gianfar"
- - reg : Offset and length of the register set for the device
- - interrupts : For FEC devices, the first interrupt is the device's
- interrupt. For TSEC and eTSEC devices, the first interrupt is
- transmit, the second is receive, and the third is error.
- - phy-handle : See ethernet.txt file in the same directory.
- - fixed-link : See fixed-link.txt in the same directory.
- - phy-connection-type : See ethernet.txt file in the same directory.
- This property is only really needed if the connection is of type
- "rgmii-id", as all other connection types are detected by hardware.
- - fsl,magic-packet : If present, indicates that the hardware supports
- 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@...00 {
- device_type = "network";
- model = "TSEC";
- compatible = "gianfar";
- reg = <0x24000 0x1000>;
- local-mac-address = [ 00 E0 0C 00 73 00 ];
- interrupts = <29 2 30 2 34 2>;
- interrupt-parent = <&mpic>;
- phy-handle = <&phy0>
- };
+Refer to Documentation/devicetree/bindings/net/fsl,gianfar.yaml
* Gianfar PTP clock nodes
--
2.48.0.rc1.219.gb6b6757d772
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