linux-kernel - [PATCH net-next v2 4/9] dt-bindings: net: add OPEN Alliance 10BASE-T1x MAC-PHY Serial Interface

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Message-ID: <20231023154649.45931-5-Parthiban.Veerasooran@microchip.com>
Date:   Mon, 23 Oct 2023 21:16:44 +0530
From:   Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
To:     <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <corbet@....net>, <steen.hegelund@...rochip.com>,
        <rdunlap@...radead.org>, <horms@...nel.org>,
        <casper.casan@...il.com>, <andrew@...n.ch>
CC:     <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <horatiu.vultur@...rochip.com>, <Woojung.Huh@...rochip.com>,
        <Nicolas.Ferre@...rochip.com>, <UNGLinuxDriver@...rochip.com>,
        <Thorsten.Kummermehr@...rochip.com>,
        Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
Subject: [PATCH net-next v2 4/9] dt-bindings: net: add OPEN Alliance 10BASE-T1x MAC-PHY Serial Interface

Add DT bindings OPEN Alliance 10BASE-T1x MACPHY Serial Interface
parameters. These are generic properties that can apply to any 10BASE-T1x
MAC-PHY which uses OPEN Alliance TC6 specification.

Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
---
 .../devicetree/bindings/net/oa-tc6.yaml       | 72 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 73 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/oa-tc6.yaml

diff --git a/Documentation/devicetree/bindings/net/oa-tc6.yaml b/Documentation/devicetree/bindings/net/oa-tc6.yaml
new file mode 100644
index 000000000000..9f442fa6cace
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/oa-tc6.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/oa-tc6.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OPEN Alliance 10BASE-T1x MAC-PHY Specification Common Properties
+
+maintainers:
+  - Parthiban Veerasooran <parthiban.veerasooran@...rochip.com>
+
+description:
+  These are generic properties that can apply to any 10BASE-T1x MAC-PHY
+  which uses OPEN Alliance TC6 specification.
+
+  10BASE-T1x MAC-PHY Serial Interface Specification can be found at:
+    https://opensig.org/about/specifications/
+
+properties:
+  $nodename:
+    pattern: "^oa-tc6(@.*)?"
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+  oa-cps:
+    maxItems: 1
+    description:
+      Chunk Payload Size. Configures the data chunk payload size to 2^N,
+      where N is the value of this bitfield. The minimum possible data
+      chunk payload size is 8 bytes or N = 3. The default data chunk
+      payload size is 64 bytes, or N = 6. The minimum supported data chunk
+      payload size for this MAC-PHY device is indicated in the CPSMIN
+      field of the CAPABILITY register. Valid values for this parameter
+      are 8, 16, 32 and 64. All other values are reserved.
+
+  oa-txcte:
+    maxItems: 1
+    description:
+      Transmit Cut-Through Enable. When supported by this MAC-PHY device,
+      this bit enables the cut-through mode of frame transfer through the
+      MAC-PHY device from the SPI host to the network.
+
+  oa-rxcte:
+    maxItems: 1
+    description:
+      Receive Cut-Through Enable. When supported by this MAC-PHY device,
+      this bit enables the cut-through mode of frame transfer through the
+      MAC-PHY device from the network to the SPI host.
+
+  oa-prote:
+    maxItems: 1
+    description:
+      Control data read/write Protection Enable. When set, all control
+      data written to and read from the MAC-PHY will be transferred with
+      its complement for detection of bit errors.
+
+additionalProperties: true
+
+examples:
+  - |
+    oa-tc6 {
+        #address-cells = <1>;
+	#size-cells = <0>;
+	oa-cps = <64>;
+	oa-txcte;
+	oa-rxcte;
+	oa-prote;
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 1c165026bbd4..9580be91f5e9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -15975,6 +15975,7 @@ OPEN ALLIANCE 10BASE-T1S MACPHY SERIAL INTERFACE FRAMEWORK
 M:	Parthiban Veerasooran <parthiban.veerasooran@...rochip.com>
 L:	netdev@...r.kernel.org
 S:	Maintained
+F:	Documentation/devicetree/bindings/net/oa-tc6.yaml
 F:	Documentation/networking/oa-tc6-framework.rst
 F:	drivers/include/linux/oa_tc6.h
 F:	drivers/net/ethernet/oa_tc6.c
-- 
2.34.1