linux-kernel - [PATCH v4 1/6] dt-bindings: add binding for USBSS-DRD controller.

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Date:   Thu, 14 Feb 2019 19:45:09 +0000
From:   Pawel Laszczak <pawell@...ence.com>
To:     <devicetree@...r.kernel.org>
CC:     <gregkh@...uxfoundation.org>, <felipe.balbi@...ux.intel.com>,
        <mark.rutland@....com>, <linux-usb@...r.kernel.org>,
        <hdegoede@...hat.com>, <heikki.krogerus@...ux.intel.com>,
        <andy.shevchenko@...il.com>, <robh+dt@...nel.org>, <rogerq@...com>,
        <linux-kernel@...r.kernel.org>, <jbergsagel@...com>,
        <nsekhar@...com>, <nm@...com>, <sureshp@...ence.com>,
        <peter.chen@....com>, <kurahul@...ence.com>,
        Pawel Laszczak <pawell@...ence.com>
Subject: [PATCH v4 1/6] dt-bindings: add binding for USBSS-DRD controller.

This patch aim at documenting USB related dt-bindings for the
Cadence USBSS-DRD controller.

Signed-off-by: Pawel Laszczak <pawell@...ence.com>
---
 .../devicetree/bindings/usb/cdns-usb3.txt     | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/cdns-usb3.txt

diff --git a/Documentation/devicetree/bindings/usb/cdns-usb3.txt b/Documentation/devicetree/bindings/usb/cdns-usb3.txt
new file mode 100644
index 000000000000..1d2b449e3cb4
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/cdns-usb3.txt
@@ -0,0 +1,30 @@
+Binding for the Cadence USBSS-DRD controller
+
+Required properties:
+  - reg: Physical base address and size of the controller's register areas.
+	 Controller has 3 different regions:
+	 region 1 - HOST registers area
+	 region 2 - DEVICE registers area
+	 region 3 - OTG/DRD registers area
+  - reg-names - register memory area names:
+	"xhci" - for HOST registers space
+	"dev" - for DEVICE registers space
+	"otg" - for OTG/DRD registers space
+  - compatible: Should contain: "cdns,usb3-1.0.0" or "cdns,usb3-1.0.1"
+  - interrupts: Interrupts used by cdns3 controller.
+
+Optional properties:
+ - maximum-speed : valid arguments are "super-speed", "high-speed" and
+                   "full-speed"; refer to usb/generic.txt
+ - dr_mode: Should be one of "host", "peripheral" or "otg".
+ - phys: reference to the USB PHY
+
+Example:
+	usb@...00000 {
+		compatible = "cdns,usb3-1.0.1";
+		interrupts = <USB_IRQ  7 IRQ_TYPE_LEVEL_HIGH>;
+		reg = <0xf3000000 0x10000	/* memory area for HOST registers */
+			0xf3010000 0x10000	/* memory area for DEVICE registers */
+			0xf3020000 0x10000>;	/* memory area for OTG/DRD registers */
+		reg-names = "xhci", "dev", "otg";
+	};
-- 
2.17.1