linux-kernel - [PATCH v3 1/2] dt-bindings: usb: Add ESWIN EIC7700 USB controller

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Message-ID: <20250915091024.2128-1-caohang@eswincomputing.com>
Date: Mon, 15 Sep 2025 17:10:24 +0800
From: caohang@...incomputing.com
To: gregkh@...uxfoundation.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	Thinh.Nguyen@...opsys.com,
	p.zabel@...gutronix.de,
	linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org,
	devicetree@...r.kernel.org
Cc: ningyu@...incomputing.com,
	linmin@...incomputing.com,
	pinkesh.vaghela@...fochips.com,
	Hang Cao <caohang@...incomputing.com>,
	Senchuan Zhang <zhangsenchuan@...incomputing.com>
Subject: [PATCH v3 1/2] dt-bindings: usb: Add ESWIN EIC7700 USB controller

From: Hang Cao <caohang@...incomputing.com>

Add Device Tree binding documentation for the ESWIN EIC7700
usb controller module.

Signed-off-by: Senchuan Zhang <zhangsenchuan@...incomputing.com>
Signed-off-by: Hang Cao <caohang@...incomputing.com>
---
 .../bindings/usb/eswin,eic7700-usb.yaml       | 99 +++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/eswin,eic7700-usb.yaml

diff --git a/Documentation/devicetree/bindings/usb/eswin,eic7700-usb.yaml b/Documentation/devicetree/bindings/usb/eswin,eic7700-usb.yaml
new file mode 100644
index 000000000000..37797b85f417
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/eswin,eic7700-usb.yaml
@@ -0,0 +1,99 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/eswin,eic7700-usb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ESWIN EIC7700 SoC Usb Controller
+
+maintainers:
+  - Wei Yang <yangwei1@...incomputing.com>
+  - Senchuan Zhang <zhangsenchuan@...incomputing.com>
+  - Hang Cao <caohang@...incomputing.com>
+
+description:
+  The Usb controller on EIC7700 SoC.
+
+allOf:
+  - $ref: snps,dwc3-common.yaml#
+
+properties:
+  compatible:
+    const: eswin,eic7700-dwc3
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-names:
+    items:
+      - const: peripheral
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: aclk
+      - const: cfg
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    items:
+      - const: vaux
+
+  eswin,hsp-sp-csr:
+    description:
+      HSP CSR is to control and get status of different high-speed peripherals
+      (such as Ethernet, USB, SATA, etc.) via register, which can close
+      module's clock,reset module independently and tune board-level's
+      parameters of PHY, etc.
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: phandle to HSP Register Controller hsp_sp_csr node.
+          - description: usb bus register offset.
+          - description: axi low power register offset.
+          - description: vbus frequency register offset.
+          - description: mpll register offset.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - interrupt-names
+  - resets
+  - reset-names
+  - eswin,hsp-sp-csr
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    usb@...80000 {
+        compatible = "eswin,eic7700-dwc3";
+        reg = <0x50480000 0x10000>;
+        clocks = <&clock 170>,
+                 <&clock 171>;
+        clock-names = "aclk", "cfg";
+        interrupt-parent = <&plic>;
+        interrupts = <85>;
+        interrupt-names = "peripheral";
+        resets = <&reset 84>;
+        reset-names = "vaux";
+        dr_mode = "peripheral";
+        maximum-speed = "high-speed";
+        phy_type = "utmi";
+        snps,dis_enblslpm_quirk;
+        snps,dis-u2-freeclk-exists-quirk;
+        snps,dis_u2_susphy_quirk;
+        snps,dis-del-phy-power-chg-quirk;
+        snps,parkmode-disable-ss-quirk;
+        eswin,hsp-sp-csr = <&hsp_sp_csr 0x800 0x818 0x83c 0x840>;
+    };
-- 
2.34.1