hub 2-0:1.0: connect-debounce failed, port 1 disabled

[xrztech_wen]

Dear all,

      I met one strange problem:

     some devices would report below errors all the time:

[ 44.245689] hub 2-0:1.0: connect-debounce failed, port 1 disabled

[ 46.755714] hub 2-0:1.0: connect-debounce failed, port 1 disabled

[ 49.175681] hub 2-0:1.0: connect-debounce failed, port 1 disabled

[ 51.575672] hub 2-0:1.0: connect-debounce failed, port 1 disabled

[ 53.975690] hub 2-0:1.0: connect-debounce failed, port 1 disabled

[ 56.375884] hub 2-0:1.0: connect-debounce failed, port 1 disabled

    When these devices reported this error,sometimes the devices cannot wakeup from

suspend mode.

Do anyone met this problem ?How to solve it ?

Thanks very much for your support!

BTW,

1.The devices software is android 4.0.4,and the kernel version is:Linux version 3.0.35-05375-g53040e6-dirty;

2.the CUP Version:i.MX6SoloLite, silicon rev 1.2;

3.The attahment file is the whold log.

Original Attachment has been moved to: imx6sl_android4.0.4_bk6801f_usb_error_1202.txt.zip

[igorpadykov]

Hi wen

this may point to problems with hardware, like damaged usb port.

Best regards

igor

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[xrztech_wen]

hi,igor,

     Thanks very much for your support!

     But,these devices can connect to PC normally,and it can connect to DCDC for charging.

     When the device connect to PC,it can copy file form PC to devices, delete file form device,and create

the new folder in device, and so on,it is the same as the normal device.

    And,when we let the device connect to PC/DCDC,it didn't report these error messages : 

                     hub 2-0:1.0: connect-debounce failed, port 1 disabled

      then remove the PC/DCDC,it would report these error messages again.

    So,can you tell me why？Can we solve this problem from software?

Thanks very much!

[igorpadykov]

Hi wen

then could you upgrade to more new android version.

Best regards

igor

[xrztech_wen]

Hi,igor,

    I had tested the new android version,this android version is android 4.4.2.

    But it also reported this error message:

[  52.743088] hub 2-0:1.0: connect-debounce failed, port 1 disabled

[  55.143086] hub 2-0:1.0: connect-debounce failed, port 1 disabled

    So,it still cannot solve this problem from upgrade to the new android version.

Thanks very much.

[igorpadykov]

then this seems as hardware issue, broken port.

~igor

[xrztech_wen]

Hi，igor,

    If I disable below codes,it didn't report this error in normal state:

      1.file:arch/arm/mach-mx6/usb_h1.c

      2.funtion:static void _wake_up_enable(struct fsl_usb2_platform_data *pdata, bool enable)

      3.modify:

static void _wake_up_enable(struct fsl_usb2_platform_data *pdata, bool enable)

{

  void __iomem *phy_reg = MX6_IO_ADDRESS(USB_PHY1_BASE_ADDR);

  pr_info("host1, [%s,%d], enable is %d\n", __func__,__LINE__, enable);

  /*if (enable) {

  __raw_writel(BM_USBPHY_CTRL_ENIDCHG_WKUP

        | BM_USBPHY_CTRL_ENVBUSCHG_WKUP

  | BM_USBPHY_CTRL_ENDPDMCHG_WKUP

  | BM_USBPHY_CTRL_ENAUTOSET_USBCLKS

  | BM_USBPHY_CTRL_ENAUTOCLR_PHY_PWD

  | BM_USBPHY_CTRL_ENAUTOCLR_CLKGATE

  | BM_USBPHY_CTRL_ENAUTOCLR_USBCLKGATE

  | BM_USBPHY_CTRL_ENAUTO_PWRON_PLL ,

  phy_reg + HW_USBPHY_CTRL_SET);

  USB_H1_CTRL |= (UCTRL_OWIE);

  } else */{

  __raw_writel(BM_USBPHY_CTRL_ENIDCHG_WKUP

        | BM_USBPHY_CTRL_ENVBUSCHG_WKUP

  | BM_USBPHY_CTRL_ENDPDMCHG_WKUP

  | BM_USBPHY_CTRL_ENAUTOSET_USBCLKS

  | BM_USBPHY_CTRL_ENAUTOCLR_PHY_PWD

  | BM_USBPHY_CTRL_ENAUTOCLR_CLKGATE

  | BM_USBPHY_CTRL_ENAUTOCLR_USBCLKGATE

  | BM_USBPHY_CTRL_ENAUTO_PWRON_PLL ,

  phy_reg + HW_USBPHY_CTRL_CLR);

  USB_H1_CTRL &= ~(UCTRL_OWIE);

  /* The interrupt must be disabled for at least 3

  * cycles of the standby clock(32k Hz) , that is 0.094 ms*/

  udelay(200);

  }

}

But,the device cannot goto suspend mode,it would report below error messages when the device tried to goto suspend mode:

[   44.886162] gpio_keys_report_event,type=0x1,state=1 button->desc=btn power,button->gpio=82, button->code=116,button->value=0

[   45.006172] gpio_keys_report_event,type=0x1,state=0 button->desc=btn power,button->gpio=82, button->code=116,button->value=0

[   46.795358] request_suspend_state,168, bUsbConnect=0 

[   46.800717] request_suspend_state: sleep (0->3) at 46464610132 (2015-01-01 12:28:39.562986880 UTC)

[   46.879337] PM: Syncing filesystems ... done.

[   46.895683] suspend: start 1 suspend...

[   46.899594] suspend: finish 1 suspend after:0.3912500 seconds...

[   46.905608] Freezing user space processes ... (elapsed 0.01 seconds) done.

[   46.928805] Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.

[   47.632102] Bluetooth: Error in H5 hdr checksum

[   48.657039] USB Host suspend begins

[   48.660534] ehci_fsl_drv_suspend, pm event

[   48.664723] host1, _wake_up_enable, enable is 0

[   48.669788] host1, _phy_lowpower_suspend, enable is 0

[   48.677348] [usbh1_internal_phy_clock_gate,90],on=1,

[   48.683585] host1, _wake_up_enable, enable is 0

[   48.688628] host1, _phy_lowpower_suspend, enable is 1

[   48.693678] [usbh1_internal_phy_clock_gate,90],on=0,

[   48.699174] host1, _is_usbh1_wakeup, invalid wake up

[   48.704646] host1, _is_usbh1_wakeup, invalid wake up

[   48.710129] host1, _is_usbh1_wakeup, invalid wake up

[   48.715599] host1, _is_usbh1_wakeup, invalid wake up

[   48.721079] host1, _is_usbh1_wakeup, invalid wake up

Do you know why? how to solve this problem: it cannot goto suspend mode?

Thanks very much for your support！

[igorpadykov]

could you try to replace just one processor,

this could prove if this hardware or software issue.

~igor

[xrztech_wen]

Hi,igor,

    I had replaced one processer,after replacement, we cannot reproduce this problem again.

    But I want to test this method:

          I want to turn off the interrupt of USB when the unit power on, Do you know how to turn off  ?

     see below,I want to disable the interrupt:

     

     What should I do for it?

Thanks very much!

[xrztech_wen]

Hi，igor,

   Sorry for reply later.

   Maybe I would try it.but can we solve this problem by software?

Thanks very much!

[xrztech_wen]

Hi,igor,

    we cannot upgrade to new android version,because these devices had sold to customer,so

we only can upgrade the new software version from OTA.

   So,we hope we can solve this problem from software.

Thanks very much!