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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 <w-kwok2@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
This commit is contained in:
WingMan Kwok 2013-12-09 14:43:23 -05:00 committed by Santosh Shilimkar
parent 0ee154443b
commit 08c36762db
2 changed files with 28 additions and 0 deletions
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20
Documentation/devicetree/bindings/usb/keystone-phy.txt Normal file
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@ -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";
};

8
arch/arm/boot/dts/keystone.dtsi
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@ -181,5 +181,13 @@ spi2: spi@21000800 {
interrupts = <GIC_SPI 300 IRQ_TYPE_EDGE_RISING>;
clocks = <&clkspi>;
};
usb_phy: usb_phy@2620738 {
compatible = "ti,keystone-usbphy";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x2620738 32>;
status = "disabled";
};
};
};