linux-kernel - [PATCH 1/2] usb: chipidea: zynq: Add device tree binding information

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Message-ID: <e6fe1dae-c6ce-41d7-a7ee-3e4f12625564@BN1BFFO11FD055.protection.gbl>
Date:	Fri, 27 Jun 2014 09:10:08 +0530
From:	Punnaiah Choudary Kalluri <punnaiah.choudary.kalluri@...inx.com>
To:	<robh+dt@...nel.org>, <Peter.Chen@...escale.com>,
	<gregkh@...uxfoundation.org>, <galak@...eaurora.org>,
	<rdunlap@...radead.org>, <michal.simek@...inx.com>
CC:	<devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-usb@...r.kernel.org>, <kpc528@...il.com>,
	<kalluripunnaiahchoudary@...il.com>,
	Punnaiah Choudary Kalluri <punnaia@...inx.com>
Subject: [PATCH 1/2] usb: chipidea: zynq: Add device tree binding information

Document device tree binding information as required by
the ZYNQ USB controller.

Signed-off-by: Punnaiah Choudary Kalluri <punnaia@...inx.com>
---
 .../devicetree/bindings/usb/ci-hdrc-zynq.txt       |   23 ++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/ci-hdrc-zynq.txt

diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-zynq.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-zynq.txt
new file mode 100644
index 0000000..54bb3b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-zynq.txt
@@ -0,0 +1,23 @@
+Xilinx Zynq usb controller based on synopsys usb IP(v2.20a)
+
+Required properties:
+- compatible:   should contain "xlnx,zynq-usb-2.20a"
+- clocks:       clock provider specifier
+- reg:          offset and length of the register set in the memory map
+- interrupt-parent: the phandle for the interrupt controller that services
+                    interrupts for this device.
+- interrupts:   interrupt-specifier for the controller interrupt.
+- phy_type:     should be "ulpi"
+- dr_mode:      should be "peripheral" or "host"
+
+Examples:
+
+	usb@...02000 {
+		clocks = <&clkc 28>;
+		compatible = "xlnx,zynq-usb-2.20a";
+		dr_mode = "host";
+		interrupt-parent = <&ps7_scugic_0>;
+		interrupts = <0 21 4>;
+		phy_type = "ulpi";
+		reg = <0xe0002000 0x1000>;
+	} ;
-- 
1.7.4


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