Does usb_otg2 exist on imx8qxp-mek

Showing results for 
Show  only  | Search instead for 
Did you mean: 

Does usb_otg2 exist on imx8qxp-mek

Contributor I

The IMX8QXPMEKHUG.pdf says
"The USB_SS3 and the USB_OTG2 are connected to the USB type C connector in the MEK board. The USB_OTG1 is connected to the USB OTG connector in the base board."

And there are wires between usb_otg2 pins from soc to typec socket in the imx8qxp-mek schematic.

However, I didn't find the USB_OTG2 description in the chip manual, especially for its base address. And u-boot and linux's dts nodes don't describe it.

My questions are:

Does the usb_otg2 exist on imx8qxp-mek? If yes, what is the base address?

Below is usb dts node excerpted from u-boot-imx/2018.03-r0/git/arch/arm/dts/fsl-imx8qxp.dtsi
    usbmisc1: usbmisc@5b0d0200 {
        #index-cells = <1>;
        compatible = "fsl,imx7d-usbmisc", "fsl,imx6q-usbmisc";
        reg = <0x0 0x5b0d0200 0x0 0x200>;

    usbphy1: usbphy@0x5b100000 {
        compatible = "fsl,imx8qm-usbphy", "fsl,imx7ulp-usbphy", "fsl,imx6ul-usbphy", "fsl,imx23-usbphy";
        reg = <0x0 0x5b100000 0x0 0x200>;
        clocks = <&clk IMX8QXP_USB2_PHY_IPG_CLK>;
        power-domains = <&pd_conn_usbotg0_phy>;

    usbotg1: usb@5b0d0000 {
        compatible = "fsl,imx7d-usb", "fsl,imx27-usb";
        reg = <0x0 0x5b0d0000 0x0 0x200>;
        interrupts = <GIC_SPI 267 IRQ_TYPE_LEVEL_HIGH>;
        fsl,usbphy = <&usbphy1>;
        fsl,usbmisc = <&usbmisc1 0>;
        clocks = <&clk IMX8QXP_USB2_OH_AHB_CLK>;
        phy-clkgate-delay-us = <400>;
        status = "disabled";
        #stream-id-cells = <1>;
        power-domains = <&pd_conn_usbotg0>;

    usb2_phy: phy@0x5b160000 {
        compatible = "fsl,imx8-usb-phy";
        reg = <0x0 0x5b160000 0x0 0x10000>;
        power-domains = <&pd_conn_usb2_phy>;

    usb2: usb@0x5b110000 {
        compatible = "fsl,imx8-usb3";
        reg = <0x0 0x5b110000 0x0 0x38000>;
        fsl,usbphy = <&usb2_phy>;
        status = "disabled";
        power-domains = <&pd_conn_usb2>;

0 Kudos
1 Reply

NXP Employee
NXP Employee

Hi Deming

yes there is USB_OTG2 connected to J10 connector on i.MX8QXP MEK board

and decribed in Figure 14-133. Block Diagram, Figure 14-136. Functional Block Diagram,

registers, like sect. USB2 Port Status and Control (PORTSC1USB2).

From sect. Features Reference Manual:
The following features are supported in the USB controller:
• SuperSpeed, Hi Speed and Full Speed support
• USB2 L1/L2 Support
• USB3 U1/U2/U3 Support 

seems there are no special usb2 dts settings for it as controller switches to usb2 mode automatically:

Can I use USB 2.0 in USB 3.0 port? - Quora 

Best regards
Note: If this post answers your question, please click the Correct Answer button. Thank you!

0 Kudos