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openwrt/target/linux/generic/backport-5.10/747-v5.16-16-dt-bindings-net-dsa-qca8k-convert-to-YAML-schema.patch

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kernel: 5.10: backport qca8k feature additions Backport Ansuel Smith's various qca8k feature additions: - mac-power-sel support - SGMII PLL explicit enable - tx/rx clock phase to falling edge - power-on-sel and LED open drain mode - cpu port 6 - qca8328 support - sgmii internal delay - move port config to dedicated struct - convert to yaml schema Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>
2021-09-09 19:40:21 +00:00
From d291fbb8245d5ba04979fed85575860a5cea7196 Mon Sep 17 00:00:00 2001
From: Matthew Hagan <mnhagan88@gmail.com>
Date: Thu, 14 Oct 2021 00:39:21 +0200
Subject: dt-bindings: net: dsa: qca8k: convert to YAML schema
Convert the qca8k bindings to YAML format.
Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>
Co-developed-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
.../devicetree/bindings/net/dsa/qca8k.txt | 245 --------------
.../devicetree/bindings/net/dsa/qca8k.yaml | 362 +++++++++++++++++++++
2 files changed, 362 insertions(+), 245 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/net/dsa/qca8k.txt
create mode 100644 Documentation/devicetree/bindings/net/dsa/qca8k.yaml
--- a/Documentation/devicetree/bindings/net/dsa/qca8k.txt
+++ /dev/null
@@ -1,245 +0,0 @@
-* Qualcomm Atheros QCA8xxx switch family
-
-Required properties:
-
-- compatible: should be one of:
- "qca,qca8328": referenced as AR8328(N)-AK1(A/B) QFN 176 pin package
- "qca,qca8327": referenced as AR8327(N)-AL1A DR-QFN 148 pin package
- "qca,qca8334": referenced as QCA8334-AL3C QFN 88 pin package
- "qca,qca8337": referenced as QCA8337N-AL3(B/C) DR-QFN 148 pin package
-
-- #size-cells: must be 0
-- #address-cells: must be 1
-
-Optional properties:
-
-- reset-gpios: GPIO to be used to reset the whole device
-- qca,ignore-power-on-sel: Ignore power on pin strapping to configure led open
- drain or eeprom presence. This is needed for broken
- devices that have wrong configuration or when the oem
- decided to not use pin strapping and fallback to sw
- regs.
-- qca,led-open-drain: Set leds to open-drain mode. This requires the
- qca,ignore-power-on-sel to be set or the driver will fail
- to probe. This is needed if the oem doesn't use pin
- strapping to set this mode and prefers to set it using sw
- regs. The pin strapping related to led open drain mode is
- the pin B68 for QCA832x and B49 for QCA833x
-
-Subnodes:
-
-The integrated switch subnode should be specified according to the binding
-described in dsa/dsa.txt. If the QCA8K switch is connect to a SoC's external
-mdio-bus each subnode describing a port needs to have a valid phandle
-referencing the internal PHY it is connected to. This is because there's no
-N:N mapping of port and PHY id.
-To declare the internal mdio-bus configuration, declare a mdio node in the
-switch node and declare the phandle for the port referencing the internal
-PHY is connected to. In this config a internal mdio-bus is registered and
-the mdio MASTER is used as communication.
-
-Don't use mixed external and internal mdio-bus configurations, as this is
-not supported by the hardware.
-
-This switch support 2 CPU port. Normally and advised configuration is with
-CPU port set to port 0. It is also possible to set the CPU port to port 6
-if the device requires it. The driver will configure the switch to the defined
-port. With both CPU port declared the first CPU port is selected as primary
-and the secondary CPU ignored.
-
-A CPU port node has the following optional node:
-
-- fixed-link : Fixed-link subnode describing a link to a non-MDIO
- managed entity. See
- Documentation/devicetree/bindings/net/fixed-link.txt
- for details.
-- qca,sgmii-rxclk-falling-edge: Set the receive clock phase to falling edge.
- Mostly used in qca8327 with CPU port 0 set to
- sgmii.
-- qca,sgmii-txclk-falling-edge: Set the transmit clock phase to falling edge.
-- qca,sgmii-enable-pll : For SGMII CPU port, explicitly enable PLL, TX and RX
- chain along with Signal Detection.
- This should NOT be enabled for qca8327. If enabled with
- qca8327 the sgmii port won't correctly init and an err
- is printed.
- This can be required for qca8337 switch with revision 2.
- A warning is displayed when used with revision greater
- 2.
- With CPU port set to sgmii and qca8337 it is advised
- to set this unless a communication problem is observed.
-
-For QCA8K the 'fixed-link' sub-node supports only the following properties:
-
-- 'speed' (integer, mandatory), to indicate the link speed. Accepted
- values are 10, 100 and 1000
-- 'full-duplex' (boolean, optional), to indicate that full duplex is
- used. When absent, half duplex is assumed.
-
-Examples:
-
-for the external mdio-bus configuration:
-
- &mdio0 {
- phy_port1: phy@0 {
- reg = <0>;
- };
-
- phy_port2: phy@1 {
- reg = <1>;
- };
-
- phy_port3: phy@2 {
- reg = <2>;
- };
-
- phy_port4: phy@3 {
- reg = <3>;
- };
-
- phy_port5: phy@4 {
- reg = <4>;
- };
-
- switch@10 {
- compatible = "qca,qca8337";
- #address-cells = <1>;
- #size-cells = <0>;
-
- reset-gpios = <&gpio 42 GPIO_ACTIVE_LOW>;
- reg = <0x10>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
- port@0 {
- reg = <0>;
- label = "cpu";
- ethernet = <&gmac1>;
- phy-mode = "rgmii";
- fixed-link {
- speed = 1000;
- full-duplex;
- };
- };
-
- port@1 {
- reg = <1>;
- label = "lan1";
- phy-handle = <&phy_port1>;
- };
-
- port@2 {
- reg = <2>;
- label = "lan2";
- phy-handle = <&phy_port2>;
- };
-
- port@3 {
- reg = <3>;
- label = "lan3";
- phy-handle = <&phy_port3>;
- };
-
- port@4 {
- reg = <4>;
- label = "lan4";
- phy-handle = <&phy_port4>;
- };
-
- port@5 {
- reg = <5>;
- label = "wan";
- phy-handle = <&phy_port5>;
- };
- };
- };
- };
-
-for the internal master mdio-bus configuration:
-
- &mdio0 {
- switch@10 {
- compatible = "qca,qca8337";
- #address-cells = <1>;
- #size-cells = <0>;
-
- reset-gpios = <&gpio 42 GPIO_ACTIVE_LOW>;
- reg = <0x10>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- label = "cpu";
- ethernet = <&gmac1>;
- phy-mode = "rgmii";
- fixed-link {
- speed = 1000;
- full-duplex;
- };
- };
-
- port@1 {
- reg = <1>;
- label = "lan1";
- phy-mode = "internal";
- phy-handle = <&phy_port1>;
- };
-
- port@2 {
- reg = <2>;
- label = "lan2";
- phy-mode = "internal";
- phy-handle = <&phy_port2>;
- };
-
- port@3 {
- reg = <3>;
- label = "lan3";
- phy-mode = "internal";
- phy-handle = <&phy_port3>;
- };
-
- port@4 {
- reg = <4>;
- label = "lan4";
- phy-mode = "internal";
- phy-handle = <&phy_port4>;
- };
-
- port@5 {
- reg = <5>;
- label = "wan";
- phy-mode = "internal";
- phy-handle = <&phy_port5>;
- };
- };
-
- mdio {
- #address-cells = <1>;
- #size-cells = <0>;
-
- phy_port1: phy@0 {
- reg = <0>;
- };
-
- phy_port2: phy@1 {
- reg = <1>;
- };
-
- phy_port3: phy@2 {
- reg = <2>;
- };
-
- phy_port4: phy@3 {
- reg = <3>;
- };
-
- phy_port5: phy@4 {
- reg = <4>;
- };
- };
- };
- };
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/qca8k.yaml
@@ -0,0 +1,362 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/dsa/qca8k.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Atheros QCA83xx switch family
+
+maintainers:
+ - John Crispin <john@phrozen.org>
+
+description:
+ If the QCA8K switch is connect to an SoC's external mdio-bus, each subnode
+ describing a port needs to have a valid phandle referencing the internal PHY
+ it is connected to. This is because there is no N:N mapping of port and PHY
+ ID. To declare the internal mdio-bus configuration, declare an MDIO node in
+ the switch node and declare the phandle for the port, referencing the internal
+ PHY it is connected to. In this config, an internal mdio-bus is registered and
+ the MDIO master is used for communication. Mixed external and internal
+ mdio-bus configurations are not supported by the hardware.
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - qca,qca8327
+ - qca,qca8328
+ - qca,qca8334
+ - qca,qca8337
+ description: |
+ qca,qca8328: referenced as AR8328(N)-AK1(A/B) QFN 176 pin package
+ qca,qca8327: referenced as AR8327(N)-AL1A DR-QFN 148 pin package
+ qca,qca8334: referenced as QCA8334-AL3C QFN 88 pin package
+ qca,qca8337: referenced as QCA8337N-AL3(B/C) DR-QFN 148 pin package
+
+ reg:
+ maxItems: 1
+
+ reset-gpios:
+ description:
+ GPIO to be used to reset the whole device
+ maxItems: 1
+
+ qca,ignore-power-on-sel:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Ignore power-on pin strapping to configure LED open-drain or EEPROM
+ presence. This is needed for devices with incorrect configuration or when
+ the OEM has decided not to use pin strapping and falls back to SW regs.
+
+ qca,led-open-drain:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Set LEDs to open-drain mode. This requires the qca,ignore-power-on-sel to
+ be set, otherwise the driver will fail at probe. This is required if the
+ OEM does not use pin strapping to set this mode and prefers to set it
+ using SW regs. The pin strappings related to LED open-drain mode are
+ B68 on the QCA832x and B49 on the QCA833x.
+
+ mdio:
+ type: object
+ description: Qca8k switch have an internal mdio to access switch port.
+ If this is not present, the legacy mapping is used and the
+ internal mdio access is used.
+ With the legacy mapping the reg corresponding to the internal
+ mdio is the switch reg with an offset of -1.
+
+ properties:
+ '#address-cells':
+ const: 1
+ '#size-cells':
+ const: 0
+
+ patternProperties:
+ "^(ethernet-)?phy@[0-4]$":
+ type: object
+
+ allOf:
+ - $ref: "http://devicetree.org/schemas/net/mdio.yaml#"
+
+ properties:
+ reg:
+ maxItems: 1
+
+ required:
+ - reg
+
+patternProperties:
+ "^(ethernet-)?ports$":
+ type: object
+ properties:
+ '#address-cells':
+ const: 1
+ '#size-cells':
+ const: 0
+
+ patternProperties:
+ "^(ethernet-)?port@[0-6]$":
+ type: object
+ description: Ethernet switch ports
+
+ properties:
+ reg:
+ description: Port number
+
+ label:
+ description:
+ Describes the label associated with this port, which will become
+ the netdev name
+ $ref: /schemas/types.yaml#/definitions/string
+
+ link:
+ description:
+ Should be a list of phandles to other switch's DSA port. This
+ port is used as the outgoing port towards the phandle ports. The
+ full routing information must be given, not just the one hop
+ routes to neighbouring switches
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+
+ ethernet:
+ description:
+ Should be a phandle to a valid Ethernet device node. This host
+ device is what the switch port is connected to
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ phy-handle: true
+
+ phy-mode: true
+
+ fixed-link: true
+
+ mac-address: true
+
+ sfp: true
+
+ qca,sgmii-rxclk-falling-edge:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Set the receive clock phase to falling edge. Mostly commonly used on
+ the QCA8327 with CPU port 0 set to SGMII.
+
+ qca,sgmii-txclk-falling-edge:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Set the transmit clock phase to falling edge.
+
+ qca,sgmii-enable-pll:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ For SGMII CPU port, explicitly enable PLL, TX and RX chain along with
+ Signal Detection. On the QCA8327 this should not be enabled, otherwise
+ the SGMII port will not initialize. When used on the QCA8337, revision 3
+ or greater, a warning will be displayed. When the CPU port is set to
+ SGMII on the QCA8337, it is advised to set this unless a communication
+ issue is observed.
+
+ required:
+ - reg
+
+ additionalProperties: false
+
+oneOf:
+ - required:
+ - ports
+ - required:
+ - ethernet-ports
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: true
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ external_phy_port1: ethernet-phy@0 {
+ reg = <0>;
+ };
+
+ external_phy_port2: ethernet-phy@1 {
+ reg = <1>;
+ };
+
+ external_phy_port3: ethernet-phy@2 {
+ reg = <2>;
+ };
+
+ external_phy_port4: ethernet-phy@3 {
+ reg = <3>;
+ };
+
+ external_phy_port5: ethernet-phy@4 {
+ reg = <4>;
+ };
+
+ switch@10 {
+ compatible = "qca,qca8337";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reset-gpios = <&gpio 42 GPIO_ACTIVE_LOW>;
+ reg = <0x10>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "cpu";
+ ethernet = <&gmac1>;
+ phy-mode = "rgmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan1";
+ phy-handle = <&external_phy_port1>;
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan2";
+ phy-handle = <&external_phy_port2>;
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan3";
+ phy-handle = <&external_phy_port3>;
+ };
+
+ port@4 {
+ reg = <4>;
+ label = "lan4";
+ phy-handle = <&external_phy_port4>;
+ };
+
+ port@5 {
+ reg = <5>;
+ label = "wan";
+ phy-handle = <&external_phy_port5>;
+ };
+ };
+ };
+ };
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switch@10 {
+ compatible = "qca,qca8337";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reset-gpios = <&gpio 42 GPIO_ACTIVE_LOW>;
+ reg = <0x10>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "cpu";
+ ethernet = <&gmac1>;
+ phy-mode = "rgmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan1";
+ phy-mode = "internal";
+ phy-handle = <&internal_phy_port1>;
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan2";
+ phy-mode = "internal";
+ phy-handle = <&internal_phy_port2>;
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan3";
+ phy-mode = "internal";
+ phy-handle = <&internal_phy_port3>;
+ };
+
+ port@4 {
+ reg = <4>;
+ label = "lan4";
+ phy-mode = "internal";
+ phy-handle = <&internal_phy_port4>;
+ };
+
+ port@5 {
+ reg = <5>;
+ label = "wan";
+ phy-mode = "internal";
+ phy-handle = <&internal_phy_port5>;
+ };
+
+ port@6 {
+ reg = <0>;
+ label = "cpu";
+ ethernet = <&gmac1>;
+ phy-mode = "sgmii";
+
+ qca,sgmii-rxclk-falling-edge;
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+ };
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ internal_phy_port1: ethernet-phy@0 {
+ reg = <0>;
+ };
+
+ internal_phy_port2: ethernet-phy@1 {
+ reg = <1>;
+ };
+
+ internal_phy_port3: ethernet-phy@2 {
+ reg = <2>;
+ };
+
+ internal_phy_port4: ethernet-phy@3 {
+ reg = <3>;
+ };
+
+ internal_phy_port5: ethernet-phy@4 {
+ reg = <4>;
+ };
+ };
+ };
+ };
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