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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>;
};
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