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ARM: dts: Add device tree bindings for dwc3-exynos

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Document device tree binding information as required by the
Samsung' USB 3.0 controller.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Vivek Gautam 2013-04-10 19:37:52 +09:00 committed by Kukjin Kim
parent 896db3b326
commit 0629f1558a
1 changed files with 34 additions and 0 deletions
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34
Documentation/devicetree/bindings/usb/exynos-usb.txt
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@ -48,3 +48,37 @@ Example:
clocks = <&clock 285>;
clock-names = "usbhost";
};
DWC3
Required properties:
- compatible: should be "samsung,exynos5250-dwusb3" for USB 3.0 DWC3
controller.
- #address-cells, #size-cells : should be '1' if the device has sub-nodes
with 'reg' property.
- ranges: allows valid 1:1 translation between child's address space and
parent's address space
- clocks: Clock IDs array as required by the controller.
- clock-names: names of clocks correseponding to IDs in the clock property
Sub-nodes:
The dwc3 core should be added as subnode to Exynos dwc3 glue.
- dwc3 :
The binding details of dwc3 can be found in:
Documentation/devicetree/bindings/usb/dwc3.txt
Example:
usb@12000000 {
compatible = "samsung,exynos5250-dwusb3";
clocks = <&clock 286>;
clock-names = "usbdrd30";
#address-cells = <1>;
#size-cells = <1>;
ranges;
dwc3 {
compatible = "synopsys,dwc3";
reg = <0x12000000 0x10000>;
interrupts = <0 72 0>;
usb-phy = <&usb2_phy &usb3_phy>;
};
};