Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / usb / pxa-usb.txt

diff --git a/kernel/Documentation/devicetree/bindings/usb/pxa-usb.txt b/kernel/Documentation/devicetree/bindings/usb/pxa-usb.txt
new file mode 100644 (file)
index 0000000..9c33179
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/usb/pxa-usb.txt
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+PXA USB controllers
+
+OHCI
+
+Required properties:
+ - compatible: Should be "marvell,pxa-ohci" for USB controllers
+   used in host mode.
+
+Optional properties:
+ - "marvell,enable-port1", "marvell,enable-port2", "marvell,enable-port3"
+   If present, enables the appropriate USB port of the controller.
+ - "marvell,port-mode" selects the mode of the ports:
+       1 = PMM_NPS_MODE
+       2 = PMM_GLOBAL_MODE
+       3 = PMM_PERPORT_MODE
+ - "marvell,power-sense-low" - power sense pin is low-active.
+ - "marvell,power-control-low" - power control pin is low-active.
+ - "marvell,no-oc-protection" - disable over-current protection.
+ - "marvell,oc-mode-perport" - enable per-port over-current protection.
+ - "marvell,power_on_delay" Power On to Power Good time - in ms.
+
+Example:
+
+       usb0: ohci@4c000000 {
+               compatible = "marvell,pxa-ohci", "usb-ohci";
+               reg = <0x4c000000 0x100000>;
+               interrupts = <18>;
+               marvell,enable-port1;
+               marvell,port-mode = <2>; /* PMM_GLOBAL_MODE */
+       };
+
+UDC
+
+Required properties:
+ - compatible: Should be "marvell,pxa270-udc" for USB controllers
+   used in device mode.
+ - reg: usb device MMIO address space
+ - interrupts: single interrupt generated by the UDC IP
+ - clocks: input clock of the UDC IP (see clock-bindings.txt)
+
+Optional properties:
+ - gpios:
+   - gpio activated to control the USB D+ pullup (see gpio.txt)
+
+Example:
+
+               pxa27x_udc: udc@40600000 {
+                       compatible = "marvell,pxa270-udc";
+                       reg = <0x40600000 0x10000>;
+                       interrupts = <11>;
+                       clocks = <&pxa2xx_clks 11>;
+                       gpios = <&gpio 22 GPIO_ACTIVE_LOW>;
+               };