Kernel-4.18.0-80.el8_pxa-usb

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>;
    };