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Message-ID: <20231121151733.2015384-2-tmaimon77@gmail.com>
Date:   Tue, 21 Nov 2023 17:17:32 +0200
From:   Tomer Maimon <tmaimon77@...il.com>
To:     <davem@...emloft.net>, <edumazet@...gle.com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>,
        <alexandre.torgue@...s.st.com>, <peppe.cavallaro@...com>,
        <joabreu@...opsys.com>, <mcoquelin.stm32@...il.com>,
        <avifishman70@...il.com>, <tali.perry1@...il.com>,
        <joel@....id.au>, <andrew@...econstruct.com.au>,
        <venture@...gle.com>, <yuenn@...gle.com>,
        <benjaminfair@...gle.com>, <j.neuschaefer@....net>
CC:     <openbmc@...ts.ozlabs.org>, <netdev@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        Tomer Maimon <tmaimon77@...il.com>
Subject: [PATCH v1 1/2] dt-bindings: net: Add support NPCM dwmac

Add documentation to describe Nuvoton BMC NPCM dwmac driver(sgmii).

Signed-off-by: Tomer Maimon <tmaimon77@...il.com>
---
 .../bindings/net/nuvoton,npcm8xx-sgmii.yaml   | 72 +++++++++++++++++++
 .../devicetree/bindings/net/snps,dwmac.yaml   |  1 +
 2 files changed, 73 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/nuvoton,npcm8xx-sgmii.yaml

diff --git a/Documentation/devicetree/bindings/net/nuvoton,npcm8xx-sgmii.yaml b/Documentation/devicetree/bindings/net/nuvoton,npcm8xx-sgmii.yaml
new file mode 100644
index 000000000000..6a5f2cade7c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/nuvoton,npcm8xx-sgmii.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/nuvoton,npcm8xx-sgmii.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NPCM DWMAC SGMII Ethernet controller
+
+maintainers:
+  - Tomer Maimon <tmaimon77@...il.com>
+
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - nuvoton,npcm8xx-sgmii
+  required:
+    - compatible
+
+allOf:
+  - $ref: snps,dwmac.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - nuvoton,npcm8xx-sgmii
+          - const: snps,dwmac-3.50a
+  reg:
+    items:
+      - description:
+          The first range represent DWMAC controller registers.
+      - description:
+          The second range represent PCS configuration registers.
+
+  clocks:
+    items:
+      - description: GMAC main clock
+
+  clock-names:
+    items:
+      - const: stmmaceth
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/nuvoton,npcm845-clk.h>
+
+    ahb {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      gmac0: ethernet@...02000 {
+          compatible = "nuvoton,npcm8xx-sgmii","snps,dwmac-3.50a";
+          reg = <0x0 0xf0802000 0x0 0x2000>, <0x0 0xf0780000 0x0 0x200>;
+          interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+          interrupt-names = "macirq";
+          clocks = <&clk NPCM8XX_CLK_AHB>;
+          clock-names = "stmmaceth";
+          phy-mode = "rgmii-id";
+      };
+    };
diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 5c2769dc689a..ba52dbc85144 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -66,6 +66,7 @@ properties:
         - ingenic,x2000-mac
         - loongson,ls2k-dwmac
         - loongson,ls7a-dwmac
+        - nuvoton,npcm8xx-sgmii
         - qcom,qcs404-ethqos
         - qcom,sa8775p-ethqos
         - qcom,sc8280xp-ethqos
-- 
2.33.0

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