linux-kernel - [PATCH 05/14] dt-bindings: arm: sparx5: Add documentation for Microchip Sparx5 SoC

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Message-ID: <20200513125532.24585-6-lars.povlsen@microchip.com>
Date:   Wed, 13 May 2020 14:55:23 +0200
From:   Lars Povlsen <lars.povlsen@...rochip.com>
To:     SoC Team <soc@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Stephen Boyd <sboyd@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
CC:     Lars Povlsen <lars.povlsen@...rochip.com>,
        Steen Hegelund <Steen.Hegelund@...rochip.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        Olof Johansson <olof@...om.net>,
        "Michael Turquette" <mturquette@...libre.com>,
        <devicetree@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <linux-gpio@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: [PATCH 05/14] dt-bindings: arm: sparx5: Add documentation for Microchip Sparx5 SoC

This adds the main Sparx5 SoC DT documentation file, with information
abut the supported board types.

Reviewed-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
Signed-off-by: Lars Povlsen <lars.povlsen@...rochip.com>
---
 .../bindings/arm/microchip,sparx5.yaml        | 87 +++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/microchip,sparx5.yaml

diff --git a/Documentation/devicetree/bindings/arm/microchip,sparx5.yaml b/Documentation/devicetree/bindings/arm/microchip,sparx5.yaml
new file mode 100644
index 0000000000000..83b36d1217988
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/microchip,sparx5.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/microchip,sparx5.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip Sparx5 Boards Device Tree Bindings
+
+maintainers:
+  - Lars Povlsen <lars.povlsen@...rochip.com>
+
+description: |+
+   The Microchip Sparx5 SoC is a ARMv8-based used in a family of
+   gigabit TSN-capable gigabit switches.
+
+   The SparX-5 Ethernet switch family provides a rich set of 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)
+
+properties:
+  $nodename:
+    const: '/'
+  compatible:
+    oneOf:
+      - description: The Sparx5 pcb125 board is a modular board,
+          which has both spi-nor and eMMC storage. The modular design
+          allows for connection of different network ports.
+        items:
+          - const: microchip,sparx5-pcb125
+          - const: microchip,sparx5
+
+      - description: The Sparx5 pcb134 is a pizzabox form factor
+          gigabit switch with 20 SFP ports. It features spi-nor and
+          either spi-nand or eMMC storage (mount option).
+        items:
+          - const: microchip,sparx5-pcb134
+          - const: microchip,sparx5
+
+      - description: The Sparx5 pcb135 is a pizzabox form factor
+          gigabit switch with 48+4 Cu ports. It features spi-nor and
+          either spi-nand or eMMC storage (mount option).
+        items:
+          - const: microchip,sparx5-pcb135
+          - const: microchip,sparx5
+
+  axi@...000000:
+    type: object
+    description: the root node in the Sparx5 platforms must contain
+      an axi bus child node. They are always at physical address
+      0x600000000 in all the Sparx5 variants.
+    properties:
+      compatible:
+        items:
+          - const: simple-bus
+      reg:
+        maxItems: 1
+
+    required:
+      - compatible
+      - reg
+
+patternProperties:
+  "^syscon@[0-9a-f]+$":
+    description: All Sparx5 boards must provide a system controller,
+      typically under the axi bus node. It contain reset registers and
+      other system control.
+    type: object
+    properties:
+      compatible:
+        items:
+          - const: microchip,sparx5-cpu-syscon
+          - const: syscon
+      reg:
+        maxItems: 1
+
+    required:
+      - compatible
+      - reg
+
+required:
+  - compatible
+  - axi@...000000
+  - syscon@...000000
+
+...
--
2.26.2