dt-bindings: marvell: Rewrite MV88E6xxx in schema

This is an attempt to rewrite the Marvell MV88E6xxx switch bindings
in YAML schema.

The current text binding says:
  WARNING: This binding is currently unstable. Do not program it into a
  FLASH never to be changed again. Once this binding is stable, this
  warning will be removed.

Well that never happened before we switched to YAML markup,
we can't have it like this, what about fixing the mess?

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20231127-marvell-88e6152-wan-led-v9-4-272934e04681@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: linusw

Documentation/devicetree/bindings/net/dsa/marvell,mv88e6xxx.yaml

@@ -0,0 +1,337 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/dsa/marvell,mv88e6xxx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell MV88E6xxx DSA switch family
+
+maintainers:
+  - Andrew Lunn <andrew@lunn.ch>
+
+description:
+  The Marvell MV88E6xxx switch series has been produced and sold
+  by Marvell since at least 2008. The switch has a few compatibles which
+  just indicate the base address of the switch, then operating systems
+  can investigate switch ID registers to find out which actual version
+  of the switch it is dealing with.
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - marvell,mv88e6085
+          - marvell,mv88e6190
+          - marvell,mv88e6250
+        description: |
+          marvell,mv88e6085: This switch uses base address 0x10.
+            This switch and its siblings will be autodetected from
+            ID registers found in the switch, so only "marvell,mv88e6085" should be
+            specified. This includes the following list of MV88Exxxx switches:
+            6085, 6095, 6097, 6123, 6131, 6141, 6161, 6165, 6171, 6172, 6175, 6176,
+            6185, 6240, 6320, 6321, 6341, 6350, 6351, 6352
+          marvell,mv88e6190: This switch uses base address 0x00.
+            This switch and its siblings will be autodetected from
+            ID registers found in the switch, so only "marvell,mv88e6190" should be
+            specified. This includes the following list of MV88Exxxx switches:
+            6190, 6190X, 6191, 6290, 6361, 6390, 6390X
+          marvell,mv88e6250: This switch uses base address 0x08 or 0x18.
+            This switch and its siblings will be autodetected from
+            ID registers found in the switch, so only "marvell,mv88e6250" should be
+            specified. This includes the following list of MV88Exxxx switches:
+            6220, 6250
+      - items:
+          - const: marvell,turris-mox-mv88e6085
+          - const: marvell,mv88e6085
+      - items:
+          - const: marvell,turris-mox-mv88e6190
+          - const: marvell,mv88e6190
+
+  reg:
+    maxItems: 1
+
+  eeprom-length:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Set to the length of an EEPROM connected to the switch. Must be
+      set if the switch can not detect the presence and/or size of a connected
+      EEPROM, otherwise optional.
+
+  reset-gpios:
+    description:
+      GPIO to be used to reset the whole device
+    maxItems: 1
+
+  interrupts:
+    description: The switch provides an external interrupt line, but it is
+      not always used by target systems.
+    maxItems: 1
+
+  interrupt-controller:
+    description: The switch has an internal interrupt controller used by
+      the different sub-blocks.
+
+  '#interrupt-cells':
+    description: The internal interrupt controller only supports triggering
+      on active high level interrupts so the second cell must alway be set to
+      IRQ_TYPE_LEVEL_HIGH.
+    const: 2
+
+  mdio:
+    $ref: /schemas/net/mdio.yaml#
+    unevaluatedProperties: false
+    description: Marvell MV88E6xxx switches have an varying combination of
+      internal and external MDIO buses, in some cases a combined bus that
+      can be used both internally and externally. This node is for the
+      primary bus, used internally and sometimes also externally.
+
+  mdio-external:
+    $ref: /schemas/net/mdio.yaml#
+    unevaluatedProperties: false
+    description: Marvell MV88E6xxx switches that have a separate external
+      MDIO bus use this port to access external components on the MDIO bus.
+
+    properties:
+      compatible:
+        const: marvell,mv88e6xxx-mdio-external
+
+    required:
+      - compatible
+
+allOf:
+  - $ref: dsa.yaml#/$defs/ethernet-ports
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    mdio {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ethernet-switch@0 {
+            compatible = "marvell,mv88e6085";
+            reg = <0>;
+            reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
+
+            mdio {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                sw_phy0: ethernet-phy@0 {
+                    reg = <0x0>;
+                };
+
+                sw_phy1: ethernet-phy@1 {
+                    reg = <0x1>;
+                };
+
+                sw_phy2: ethernet-phy@2 {
+                    reg = <0x2>;
+                };
+
+                sw_phy3: ethernet-phy@3 {
+                    reg = <0x3>;
+                };
+            };
+
+            ethernet-ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                ethernet-port@0 {
+                    reg = <0>;
+                    label = "lan4";
+                    phy-handle = <&sw_phy0>;
+                    phy-mode = "internal";
+                };
+
+                ethernet-port@1 {
+                    reg = <1>;
+                    label = "lan3";
+                    phy-handle = <&sw_phy1>;
+                    phy-mode = "internal";
+                };
+
+                ethernet-port@2 {
+                    reg = <2>;
+                    label = "lan2";
+                    phy-handle = <&sw_phy2>;
+                    phy-mode = "internal";
+                };
+
+                ethernet-port@3 {
+                    reg = <3>;
+                    label = "lan1";
+                    phy-handle = <&sw_phy3>;
+                    phy-mode = "internal";
+                };
+
+                ethernet-port@5 {
+                    reg = <5>;
+                    ethernet = <&fec>;
+                    phy-mode = "rgmii-id";
+
+                    fixed-link {
+                        speed = <1000>;
+                        full-duplex;
+                    };
+                };
+            };
+        };
+    };
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    mdio {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ethernet-switch@0 {
+            compatible = "marvell,mv88e6190";
+            #interrupt-cells = <2>;
+            interrupt-controller;
+            interrupt-parent = <&gpio1>;
+            interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
+            pinctrl-0 = <&switch_interrupt_pins>;
+            pinctrl-names = "default";
+            reg = <0>;
+
+            mdio {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                switch0phy1: ethernet-phy@1 {
+                    reg = <0x1>;
+                };
+
+                switch0phy2: ethernet-phy@2 {
+                    reg = <0x2>;
+                };
+
+                switch0phy3: ethernet-phy@3 {
+                    reg = <0x3>;
+                };
+
+                switch0phy4: ethernet-phy@4 {
+                    reg = <0x4>;
+                };
+
+                switch0phy5: ethernet-phy@5 {
+                    reg = <0x5>;
+                };
+
+                switch0phy6: ethernet-phy@6 {
+                    reg = <0x6>;
+                };
+
+                switch0phy7: ethernet-phy@7 {
+                    reg = <0x7>;
+                };
+
+                switch0phy8: ethernet-phy@8 {
+                    reg = <0x8>;
+                };
+            };
+
+            mdio-external {
+                compatible = "marvell,mv88e6xxx-mdio-external";
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                phy1: ethernet-phy@b {
+                    reg = <0xb>;
+                    compatible = "ethernet-phy-ieee802.3-c45";
+                };
+
+                phy2: ethernet-phy@c {
+                    reg = <0xc>;
+                    compatible = "ethernet-phy-ieee802.3-c45";
+                };
+            };
+
+            ethernet-ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                ethernet-port@0 {
+                    ethernet = <&eth0>;
+                    phy-mode = "rgmii";
+                    reg = <0>;
+
+                    fixed-link {
+                        full-duplex;
+                        pause;
+                        speed = <1000>;
+                    };
+                };
+
+                ethernet-port@1 {
+                    label = "lan1";
+                    phy-handle = <&switch0phy1>;
+                    reg = <1>;
+                };
+
+                ethernet-port@2 {
+                    label = "lan2";
+                    phy-handle = <&switch0phy2>;
+                    reg = <2>;
+                };
+
+                ethernet-port@3 {
+                    label = "lan3";
+                    phy-handle = <&switch0phy3>;
+                    reg = <3>;
+                };
+
+                ethernet-port@4 {
+                    label = "lan4";
+                    phy-handle = <&switch0phy4>;
+                    reg = <4>;
+                };
+
+                ethernet-port@5 {
+                    label = "lan5";
+                    phy-handle = <&switch0phy5>;
+                    reg = <5>;
+                };
+
+                ethernet-port@6 {
+                    label = "lan6";
+                    phy-handle = <&switch0phy6>;
+                    reg = <6>;
+                };
+
+                ethernet-port@7 {
+                    label = "lan7";
+                    phy-handle = <&switch0phy7>;
+                    reg = <7>;
+                };
+
+                ethernet-port@8 {
+                    label = "lan8";
+                    phy-handle = <&switch0phy8>;
+                    reg = <8>;
+                };
+
+                ethernet-port@9 {
+                    /* 88X3310P external phy */
+                    label = "lan9";
+                    phy-handle = <&phy1>;
+                    phy-mode = "xaui";
+                    reg = <9>;
+                };
+
+                ethernet-port@a {
+                    /* 88X3310P external phy */
+                    label = "lan10";
+                    phy-handle = <&phy2>;
+                    phy-mode = "xaui";
+                    reg = <0xa>;
+                };
+            };
+        };
+    };