netdev - [PATCH 4/6] dt-bindings: net: add hisilicon-femac

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Message-Id: <20240216-net-v1-4-e0ad972cda99@outlook.com>
Date: Fri, 16 Feb 2024 07:48:56 +0800
From: Yang Xiwen via B4 Relay <devnull+forbidden405.outlook.com@...nel.org>
To: Yisen Zhuang <yisen.zhuang@...wei.com>, 
 Salil Mehta <salil.mehta@...wei.com>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, Yang Xiwen <forbidden405@...mail.com>, 
 Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>, 
 Russell King <linux@...linux.org.uk>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, Yang Xiwen <forbidden405@...look.com>
Subject: [PATCH 4/6] dt-bindings: net: add hisilicon-femac

From: Yang Xiwen <forbidden405@...look.com>

This binding gets rewritten. Compared to previous txt based binding doc,
the following changes are made:

- No "hisi-femac-v1/2" binding anymore
- Remove unused Hi3516 SoC, add Hi3798MV200
- add MDIO subnode
- add phy clock and reset

Signed-off-by: Yang Xiwen <forbidden405@...look.com>
---
 .../devicetree/bindings/net/hisilicon-femac.yaml   | 125 +++++++++++++++++++++
 1 file changed, 125 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/hisilicon-femac.yaml b/Documentation/devicetree/bindings/net/hisilicon-femac.yaml
new file mode 100644
index 000000000000..008127e148aa
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/hisilicon-femac.yaml
@@ -0,0 +1,125 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/hisilicon-femac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Hisilicon Fast Ethernet MAC controller
+
+maintainers:
+  - Yang Xiwen <forbidden405@...mail.com>
+
+allOf:
+  - $ref: ethernet-controller.yaml
+
+properties:
+  compatible:
+    enum:
+      - hisilicon,hi3798mv200-femac
+
+  reg:
+    minItems: 2
+    maxItems: 2
+    description: |
+      The first region is the MAC core register base and size.
+      The second region is the global MAC control register.
+
+  ranges:
+    maxItems: 1
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    minItems: 3
+    maxItems: 3
+
+  clock-names:
+    items:
+      - const: mac
+      - const: macif
+      - const: phy
+
+  resets:
+    minItems: 2
+    maxItems: 2
+
+  reset-names:
+    items:
+      - const: mac
+      - const: phy
+
+  hisilicon,phy-reset-delays-us:
+    minItems: 3
+    maxItems: 3
+    description: |
+      The 1st cell is reset pre-delay in micro seconds.
+      The 2nd cell is reset pulse in micro seconds.
+      The 3rd cell is reset post-delay in micro seconds.
+
+patternProperties:
+  '^mdio@[0-9a-f]+$':
+    type: object
+    description: See ./hisi-femac-mdio.txt
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+  - phy-connection-type
+  - phy-handle
+  - hisilicon,phy-reset-delays-us
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/histb-clock.h>
+
+    #ifndef HISTB_ETH0_PHY_CLK
+    #define HISTB_ETH0_PHY_CLK 0
+    #endif
+    femac: ethernet@...0000 {
+        compatible = "hisilicon,hi3798mv200-femac";
+        reg = <0x9c30000 0x1000>, <0x9c31300 0x200>;
+        ranges = <0x0 0x9c30000 0x10000>;
+        #address-cells = <1>;
+        #size-cells = <1>;
+        interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&crg HISTB_ETH0_MAC_CLK>,
+                 <&crg HISTB_ETH0_MACIF_CLK>,
+                 <&crg HISTB_ETH0_PHY_CLK>;
+        clock-names = "mac", "macif", "phy";
+        resets = <&crg 0xd0 3>, <&crg 0x388 4>;
+        reset-names = "mac", "phy";
+        phy-handle = <&fephy>;
+        phy-connection-type = "mii";
+        // To be filled by bootloader
+        mac-address = [00 00 00 00 00 00];
+        hisilicon,phy-reset-delays-us = <10000 10000 500000>;
+        status = "okay";
+
+        mdio: mdio@...0 {
+            compatible = "hisilicon,hisi-femac-mdio";
+            reg = <0x1100 0x20>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+            status = "okay";
+
+            fephy: ethernet-phy@1 {
+                reg = <1>;
+                #phy-cells = <0>;
+            };
+        };
+    };

-- 
2.43.0