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Date:   Thu, 17 Dec 2020 08:51:27 +0100
From:   Steen Hegelund <steen.hegelund@...rochip.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Device Tree List <devicetree@...r.kernel.org>
CC:     Steen Hegelund <steen.hegelund@...rochip.com>,
        Andrew Lunn <andrew@...n.ch>,
        Russell King <linux@...linux.org.uk>,
        Lars Povlsen <lars.povlsen@...rochip.com>,
        Bjarni Jonasson <bjarni.jonasson@...rochip.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Madalin Bucur <madalin.bucur@....nxp.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Mark Einon <mark.einon@...il.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Arnd Bergmann <arnd@...db.de>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: [RFC PATCH v2 1/8] dt-bindings: net: sparx5: Add sparx5-switch bindings

Document the Sparx5 switch device driver bindings

Signed-off-by: Steen Hegelund <steen.hegelund@...rochip.com>
Signed-off-by: Lars Povlsen <lars.povlsen@...rochip.com>
---
 .../bindings/net/microchip,sparx5-switch.yaml | 178 ++++++++++++++++++
 1 file changed, 178 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml

diff --git a/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml b/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml
new file mode 100644
index 000000000000..6e3ef8285e9a
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml
@@ -0,0 +1,178 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/microchip,sparx5-switch.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip Sparx5 Ethernet switch controller
+
+maintainers:
+  - Lars Povlsen <lars.povlsen@...rochip.com>
+  - Steen Hegelund <steen.hegelund@...rochip.com>
+
+description: |
+  The SparX-5 Enterprise Ethernet switch family provides a rich set of
+  Enterprise switching features such as advanced TCAM-based VLAN and
+  QoS processing enabling delivery of differentiated services, and
+  security through TCAM-based frame processing using versatile content
+  aware processor (VCAP).
+
+  IPv4/IPv6 Layer 3 (L3) unicast and multicast routing is supported
+  with up to 18K IPv4/9K IPv6 unicast LPM entries and up to 9K IPv4/3K
+  IPv6 (S,G) multicast groups.
+
+  L3 security features include source guard and reverse path
+  forwarding (uRPF) tasks. Additional L3 features include VRF-Lite and
+  IP tunnels (IP over GRE/IP).
+
+  The SparX-5 switch family targets managed Layer 2 and Layer 3
+  equipment in SMB, SME, and Enterprise where high port count
+  1G/2.5G/5G/10G switching with 10G/25G aggregation links is required.
+
+properties:
+  $nodename:
+    pattern: "^switch@[0-9a-f]+$"
+
+  compatible:
+    const: microchip,sparx5-switch
+
+  reg:
+    minItems: 2
+
+  reg-names:
+    minItems: 2
+    items:
+      - const: devices
+      - const: gcb
+
+  interrupts:
+    maxItems: 1
+    description: Interrupt used for reception of packets to the CPU
+
+  ethernet-ports:
+    type: object
+    properties:
+      '#address-cells':
+        const: 1
+      '#size-cells':
+        const: 0
+
+    patternProperties:
+      "^port@[0-9]+$":
+        type: object
+        description: Switch ports
+
+        allOf:
+          - $ref: ethernet-controller.yaml#
+
+        properties:
+          reg:
+            description: Switch port number
+
+          max-speed:
+            maxItems: 1
+            description: Bandwidth allocated to this port
+
+          phys:
+            description: phandle of a Ethernet Serdes PHY
+
+          phy-handle:
+            description: phandle of a Ethernet PHY
+
+          phy-mode:
+            description: Interface between the serdes and the phy
+
+          sfp:
+            description: phandle of an SFP
+
+          managed:
+            maxItems: 1
+            description: SFP management
+
+        required:
+          - reg
+          - max-speed
+          - phys
+
+        oneOf:
+          - required:
+              - phy-handle
+              - phy-mode
+          - required:
+              - sfp
+              - managed
+
+        additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - ethernet-ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    switch: switch@...000000 {
+      compatible = "microchip,sparx5-switch";
+      reg =  <0x10000000 0x800000>,
+             <0x11010000 0x1b00000>;
+      reg-names = "devices", "gcb";
+
+      interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+      ethernet-ports {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        port0: port@0 {
+          reg = <0>;
+          max-speed = <1000>;
+          phys = <&serdes 13>;
+          phy-handle = <&phy0>;
+          phy-mode = "qsgmii";
+        };
+        /* ... */
+        /* Then the 25G interfaces */
+        port60: port@60 {
+          reg = <60>;
+          max-speed = <25000>;
+          phys = <&serdes 29>;
+          sfp = <&sfp_eth60>;
+          managed = "in-band-status";
+        };
+        port61: port@61 {
+          reg = <61>;
+          max-speed = <25000>;
+          phys = <&serdes 30>;
+          sfp = <&sfp_eth61>;
+          managed = "in-band-status";
+        };
+        port62: port@62 {
+          reg = <62>;
+          max-speed = <25000>;
+          phys = <&serdes 31>;
+          sfp = <&sfp_eth62>;
+          managed = "in-band-status";
+        };
+        port63: port@63 {
+          reg = <63>;
+          max-speed = <25000>;
+          phys = <&serdes 32>;
+          sfp = <&sfp_eth63>;
+          managed = "in-band-status";
+        };
+        /* Finally the Management interface */
+        port64: port@64 {
+          reg = <64>;
+          max-speed = <1000>;
+          phys = <&serdes 0>;
+          phy-handle = <&phy64>;
+          phy-mode = "sgmii";
+        };
+      };
+    };
+
+...
-- 
2.29.2

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