i.MX ProcessorsのトピックRe: usbh2: device descriptor read/64, error -71

usbh2: device descriptor read/64, error -71

vishnu_motghare — Wed, 22 Feb 2023 06:22:37 GMT

Hi,

We have a custom board based on IMX.6 Freescale SoC. The device has a LAN9730 HSIC USB to ethernet controller connected to USBH2 of IMX.6 processor. The DATA line is connected to RGMII_TXC pin & STOBE line is connected to RGMII_TX_CTL pin.

I'm using the "rel_imx_5.4.70_2.3.7" kernel version & following is my DTS configuration

usbh2 { pinctrl_usbh2_1: usbh2grp-1 { fsl,pins = < MX6QDL_PAD_RGMII_TXC__USB_H2_DATA 0x13030 MX6QDL_PAD_RGMII_TX_CTL__USB_H2_STROBE 0x13030 >; }; pinctrl_usbh2_2: usbh2grp-2 { fsl,pins = < MX6QDL_PAD_RGMII_TXC__USB_H2_DATA 0x13030 MX6QDL_PAD_RGMII_TX_CTL__USB_H2_STROBE 0x17030 >; }; }; &usbh2 { pinctrl-names = "idle", "active"; pinctrl-0 = <&pinctrl_usbh2_1>; pinctrl-1 = <&pinctrl_usbh2_2>; status = "okay"; };

But USB enumeration fails with error -71.

[ 2.936707] imx_usb 2184400.usb: No over current polarity defined [ 2.943332] imx_usb 2184400.usb: 2184400.usb supply vbus not found, using dummy regulator [ 2.997053] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04 [ 3.005439] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 3.012761] usb usb2: Product: EHCI Host Controller [ 3.017677] usb usb2: Manufacturer: Linux 5.4.70-dirty ehci_hcd [ 3.023689] usb usb2: SerialNumber: ci_hdrc.1 [ 3.291087] usb 2-1: new high-speed USB device number 2 using ci_hdrc [ 3.410432] usbcore: registered new interface driver usbhid [ 3.416442] usbhid: USB HID core driver [ 3.471091] usb 2-1: device no response, device descriptor read/64, error -71 [ 3.761847] usb 2-1: device no response, device descriptor read/64, error -71 [ 4.030978] usb 2-1: new high-speed USB device number 3 using ci_hdrc [ 4.222852] usb 2-1: device no response, device descriptor read/64, error -71 [ 4.500983] usb 2-1: device no response, device descriptor read/64, error -71 [ 4.631182] usb usb2-port1: attempt power cycle [ 5.121689] usb 2-1: new high-speed USB device number 4 using ci_hdrc [ 5.571209] usb 2-1: device not accepting address 4, error -71 [ 5.721762] usb 2-1: new high-speed USB device number 5 using ci_hdrc [ 6.171139] usb 2-1: device not accepting address 5, error -71 [ 6.181358] usb usb2-port1: unable to enumerate USB device

I've also tried with the older IMX kernel "rel_imx_4.14.98_2.0.0_ga" & also tried the 5.15 mainline kernel & I get exact same error with all. I'm not sure why the enumeration is falling. Am I missing any settings in the device tree or in the kernel config? Any help is appreciated.

Thanks,

Vishnu

Re: usbh2: device descriptor read/64, error -71

Rita_Wang — Wed, 22 Feb 2023 07:31:18 GMT

You can refer to https://community.nxp.com/t5/i-MX-Processors/USB-silently-hangs-on-imx6q-in-presence-of-transmission-errors/m-p/905784

Re: usbh2: device descriptor read/64, error -71

vishnu_motghare — Wed, 22 Feb 2023 11:16:42 GMT

@Rita_Wang . Thanks for your reply. I've tried following command mentioned in the post but It did not work. Getting same error

# echo ci_hdrc.1 > /sys/bus/platform/drivers/ci_hdrc/unbind ci_hdrc ci_hdrc.1: remove, state 4 usb usb2: USB disconnect, device number 1 ci_hdrc ci_hdrc.1: USB bus 2 deregistered # echo ci_hdrc.1 > /sys/bus/platform/drivers/ci_hdrc/bind ci_hdrc ci_hdrc.1: EHCI Host Controller ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 2 ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00 usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.15 usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb2: Product: EHCI Host Controller usb usb2: Manufacturer: Linux 5.15.79-rt54-g65e3421f494d-dirty ehci_hcd usb usb2: SerialNumber: ci_hdrc.1 hub 2-0:1.0: USB hub found hub 2-0:1.0: 1 port detected usb 2-1: new high-speed USB device number 2 using ci_hdrc usb 2-1: device descriptor read/64, error -71 usb 2-1: device descriptor read/64, error -71 usb 2-1: new high-speed USB device number 3 using ci_hdrc usb 2-1: device descriptor read/64, error -71 usb 2-1: device descriptor read/64, error -71 usb usb2-port1: attempt power cycle usb 2-1: new high-speed USB device number 4 using ci_hdrc usb 2-1: device not accepting address 4, error -71 usb 2-1: new high-speed USB device number 5 using ci_hdrc usb 2-1: device not accepting address 5, error -71 usb usb2-port1: unable to enumerate USB device