From 08c36762db9a0223a5477441bd93650b474aa9c8 Mon Sep 17 00:00:00 2001 From: WingMan Kwok Date: Mon, 9 Dec 2013 14:43:23 -0500 Subject: [PATCH] ARM: dts: keystone: Add usb phy devicetree bindings Added device tree support for TI's Keystone USB PHY driver and updated the Documentation with device tree binding information. Signed-off-by: WingMan Kwok Signed-off-by: Santosh Shilimkar --- .../devicetree/bindings/usb/keystone-phy.txt | 20 +++++++++++++++++++ arch/arm/boot/dts/keystone.dtsi | 8 ++++++++ 2 files changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/keystone-phy.txt diff --git a/Documentation/devicetree/bindings/usb/keystone-phy.txt b/Documentation/devicetree/bindings/usb/keystone-phy.txt new file mode 100644 index 000000000000..f37b3a86341d --- /dev/null +++ b/Documentation/devicetree/bindings/usb/keystone-phy.txt @@ -0,0 +1,20 @@ +TI Keystone USB PHY + +Required properties: + - compatible: should be "ti,keystone-usbphy". + - #address-cells, #size-cells : should be '1' if the device has sub-nodes + with 'reg' property. + - reg : Address and length of the usb phy control register set. + +The main purpose of this PHY driver is to enable the USB PHY reference clock +gate on the Keystone SOC for both the USB2 and USB3 PHY. Otherwise it is just +an NOP PHY driver. Hence this node is referenced as both the usb2 and usb3 +phy node in the USB Glue layer driver node. + +usb_phy: usb_phy@2620738 { + compatible = "ti,keystone-usbphy"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x2620738 32>; + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/keystone.dtsi b/arch/arm/boot/dts/keystone.dtsi index f6d6d9e5effd..276bea999ef4 100644 --- a/arch/arm/boot/dts/keystone.dtsi +++ b/arch/arm/boot/dts/keystone.dtsi @@ -181,5 +181,13 @@ interrupts = ; clocks = <&clkspi>; }; + + usb_phy: usb_phy@2620738 { + compatible = "ti,keystone-usbphy"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x2620738 32>; + status = "disabled"; + }; }; }; -- 2.39.5