linux-kernel - [PATCH v18, 1/2] dt-bindings: net: Add Davicom dm9051 SPI ethernet controller

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Message-Id: <20220207090906.11156-2-josright123@gmail.com>
Date:   Mon,  7 Feb 2022 17:09:05 +0800
From:   Joseph CHAMG <josright123@...il.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Joseph CHANG <josright123@...il.com>,
        joseph_chang@...icom.com.tw
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, andy.shevchenko@...il.com,
        andrew@...n.ch, leon@...nel.org, Rob Herring <robh@...nel.org>
Subject: [PATCH v18, 1/2] dt-bindings: net: Add Davicom dm9051 SPI ethernet controller

This is a new yaml base data file for configure davicom dm9051 with
device tree

Cc: Rob Herring <robh@...nel.org>
Signed-off-by: Joseph CHAMG <josright123@...il.com>
---
 .../bindings/net/davicom,dm9051.yaml          | 62 +++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/davicom,dm9051.yaml

diff --git a/Documentation/devicetree/bindings/net/davicom,dm9051.yaml b/Documentation/devicetree/bindings/net/davicom,dm9051.yaml
new file mode 100644
index 000000000000..52e852fef753
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/davicom,dm9051.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/davicom,dm9051.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Davicom DM9051 SPI Ethernet Controller
+
+maintainers:
+  - Joseph CHANG <josright123@...il.com>
+
+description: |
+  The DM9051 is a fully integrated and cost-effective low pin count single
+  chip Fast Ethernet controller with a Serial Peripheral Interface (SPI).
+
+allOf:
+  - $ref: ethernet-controller.yaml#
+
+properties:
+  compatible:
+    const: davicom,dm9051
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency:
+    maximum: 45000000
+
+  interrupts:
+    maxItems: 1
+
+  local-mac-address: true
+
+  mac-address: true
+
+required:
+  - compatible
+  - reg
+  - spi-max-frequency
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  # Raspberry Pi platform
+  - |
+    /* for Raspberry Pi with pin control stuff for GPIO irq */
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/gpio/gpio.h>
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ethernet@0 {
+            compatible = "davicom,dm9051";
+            reg = <0>; /* spi chip select */
+            local-mac-address = [00 00 00 00 00 00];
+            interrupt-parent = <&gpio>;
+            interrupts = <26 IRQ_TYPE_LEVEL_LOW>;
+            spi-max-frequency = <31200000>;
+        };
+    };
-- 
2.20.1