Updated the document as per the latest implementation.
While at it also fixed some trivial typos.
Signed-off-by: Sachin Kamat <sachin.kamat@xxxxxxxxxx>
---
Changes since v1:
* Updated review comments from Stephen Warren regarding the wording
and some styling.
---
.../devicetree/bindings/usb/exynos-usb.txt | 29 ++++++++++----------
1 file changed, 15 insertions(+), 14 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/exynos-usb.txt b/Documentation/devicetree/bindings/usb/exynos-usb.txt
index d967ba1..56468f7 100644
--- a/Documentation/devicetree/bindings/usb/exynos-usb.txt
+++ b/Documentation/devicetree/bindings/usb/exynos-usb.txt
@@ -5,13 +5,14 @@ The device node has following properties.
EHCI
Required properties:
- - compatible: should be "samsung,exynos4210-ehci" for USB 2.0
- EHCI controller in host mode.
+ - compatible: should be one of the following for USB 2.0 EHCI controller:
+ (a) "samsung,exynos5440-ehci" for Exynos5440 SoC
+ (b) "samsung,exynos4210-ehci" for all other Exynos4 and 5 SoCs
- reg: physical base address of the controller and length of memory mapped
region.
- - interrupts: interrupt number to the cpu.
- - clocks: from common clock binding: handle to usb clock.
- - clock-names: from common clock binding: Shall be "usbhost".
+ - interrupts: interrupt number to the CPU.
+ - clocks: from common clock binding: handle to USB clock.
+ - clock-names: shall be "usbhost".
Optional properties:
- samsung,vbus-gpio: if present, specifies the GPIO that
@@ -23,7 +24,7 @@ Example:
compatible = "samsung,exynos4210-ehci";
reg = <0x12110000 0x100>;
interrupts = <0 71 0>;
- samsung,vbus-gpio = <&gpx2 6 1 3 3>;
+ samsung,vbus-gpio = <&gpx2 6 0>;
clocks = <&clock 285>;
clock-names = "usbhost";
@@ -31,13 +32,14 @@ Example:
OHCI
Required properties:
- - compatible: should be "samsung,exynos4210-ohci" for USB 2.0
- OHCI companion controller in host mode.
+ - compatible: should be one of the following for USB 2.0 OHCI controller:
+ (a) "samsung,exynos5440-ohci" for Exynos5440 SoC
+ (b) "samsung,exynos4210-ohci" for all other Exynos4 and 5 SoCs
- reg: physical base address of the controller and length of memory mapped
region.
- - interrupts: interrupt number to the cpu.
- - clocks: from common clock binding: handle to usb clock.
- - clock-names: from common clock binding: Shall be "usbhost".
+ - interrupts: interrupt number to the CPU.
+ - clocks: from common clock binding: handle to USB clock.
+ - clock-names: shall be "usbhost".
Example:
usb@12120000 {
@@ -53,12 +55,11 @@ 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.
+ - #address-cells, #size-cells: should be '1'.
- 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
+ - clock-names: shall be "usbdrd30".
Sub-nodes:
The dwc3 core should be added as subnode to Exynos dwc3 glue.
--
1.7.9.5
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