linux-kernel - [PATCH v3 3/5] devicetree/bindings: add support for CP110 UTMI PHY

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Message-ID: <20210307163343.25684-4-kostap@marvell.com>
Date:   Sun, 7 Mar 2021 18:33:40 +0200
From:   <kostap@...vell.com>
To:     <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <lkundrak@...sk>, <linux@...linux.org.uk>,
        <sebastian.hesselbarth@...il.com>, <gregory.clement@...tlin.com>,
        <andrew@...n.ch>, <robh+dt@...nel.org>, <vkoul@...nel.org>,
        <kishon@...com>, <miquel.raynal@...tlin.com>, <mw@...ihalf.com>,
        <jaz@...ihalf.com>, <nadavh@...vell.com>, <stefanc@...vell.com>,
        <bpeled@...vell.com>, "Konstantin Porotchkin" <kostap@...vell.com>
Subject: [PATCH v3 3/5] devicetree/bindings: add support for CP110 UTMI PHY

From: Konstantin Porotchkin <kostap@...vell.com>

Add DTS binding for Marvell CP110 UTMI PHY

Signed-off-by: Konstantin Porotchkin <kostap@...vell.com>
---
 Documentation/devicetree/bindings/phy/marvell,armada-cp110-utmi-phy.yaml | 109 ++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/marvell,armada-cp110-utmi-phy.yaml

diff --git a/Documentation/devicetree/bindings/phy/marvell,armada-cp110-utmi-phy.yaml b/Documentation/devicetree/bindings/phy/marvell,armada-cp110-utmi-phy.yaml
new file mode 100644
index 000000000000..30f3b5f32a95
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/marvell,armada-cp110-utmi-phy.yaml
@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/phy/marvell,armada-cp110-utmi-phy.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Marvell Armada CP110/CP115 UTMI PHY
+
+maintainers:
+  - Konstantin Porotchkin <kostap@...vell.com>
+
+description:
+  On Armada 7k/8k and CN913x, there are two host and one device USB controllers.
+  Each of two exiting UTMI PHYs could be connected to either USB host or USB device
+  controller.
+  The USB device controller can only be connected to a single UTMI PHY port
+                      0.H----- USB HOST0
+  UTMI PHY0  --------/
+                      0.D-----0
+                               \------ USB DEVICE
+                      1.D-----1
+  UTMI PHY1  --------\
+                      1.H----- USB HOST1
+
+properties:
+  compatible:
+    const: marvell,cp110-utmi-phy
+
+  reg:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+  marvell,system-controller:
+    description:
+      Phandle to the system controller node
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+#Required child nodes:
+
+patternProperties:
+  "^usb-phy@[0|1]$":
+    type: object
+    description:
+      Each UTMI PHY port must be represented as a sub-node.
+
+    properties:
+      reg:
+        description: phy port index.
+        maxItems: 1
+
+      "#phy-cells":
+        const: 0
+
+    required:
+      - reg
+      - "#phy-cells"
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - "#address-cells"
+  - "#size-cells"
+  - marvell,system-controller
+
+additionalProperties: false
+
+examples:
+  - |
+    cp0_utmi: utmi@...000 {
+      compatible = "marvell,cp110-utmi-phy";
+      reg = <0x580000 0x2000>;
+      marvell,system-controller = <&cp0_syscon0>;
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      cp0_utmi0: usb-phy@0 {
+        reg = <0>;
+        #phy-cells = <0>;
+      };
+
+      cp0_utmi1: usb-phy@1 {
+        reg = <1>;
+        #phy-cells = <0>;
+      };
+    };
+
+    cp0_usb3_0 {
+      usb-phy = <&cp0_usb3_0_phy0>;
+      phys = <&cp0_utmi0>;
+      phy-names = "utmi";
+      /* UTMI0 is connected to USB host controller (default mode) */
+      dr_mode = "host";
+    };
+
+    cp0_usb3_1 {
+      usb-phy = <&cp0_usb3_0_phy1>;
+      phys = <&cp0_utmi1>;
+      phy-names = "utmi";
+      /* UTMI1 is connected to USB device controller */
+      dr_mode = "peripheral";
+    };
-- 
2.17.1