USB devices not detected in custom board with iMX8M PLUS

Technical Support
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1

Dear Community,

I have a custom designed base board with the Verdin iMX8M Mini Quad 2GB WB IT V1.1B based. The image used is Toradex Linux Reference Minimal BSP 6.3.0. If instead of using the SOM iMX8M mini, I connect the SOM iMX8M plus the USB ports stop working. I turn on the system and then I connect a USB camera on the USB_2 port (X2) and I get the following error:

[ 37.812798] usb 1-1: new high-speed USB device number 2 using xhci-hcd
[ 38.317603] kauditd_printk_skb: 3 callbacks suppressed
[ 38.317614] audit: type=1334 audit(1724827909.450:17): prog-id=0 op=UNLOAD
[ 38.329764] audit: type=1334 audit(1724827909.450:18): prog-id=0 op=UNLOAD
[ 43.383630] cpu cpu0: _set_opp_voltage: failed to set voltage (950000 950000 950000 mV): -110
[ 43.392214] cpufreq: __target_index: Failed to change cpu frequency: -110
[ 43.814778] cpu cpu0: _set_opp_voltage: failed to set voltage (950000 950000 950000 mV): -110
[ 43.823371] cpufreq: __target_index: Failed to change cpu frequency: -110
[ 47.941768] xhci-hcd xhci-hcd.1.auto: Abort failed to stop command ring: -110
[ 47.959018] xhci-hcd xhci-hcd.1.auto: xHCI host controller not responding, assume dead
[ 47.966955] xhci-hcd xhci-hcd.1.auto: HC died; cleaning up
[ 47.972491] imx-sdma 30e10000.dma-controller: All bds consumed,restart now.
[ 47.979585] xhci-hcd xhci-hcd.1.auto: Timeout while waiting for configure endpoint command
[ 47.988227] usb 1-1: can’t set config #1, error -62
[ 47.993417] usb 1-1: USB disconnect, device number 2

If I disconnect the camera and reconnect it, it doesn’t seem any message by console and no device is detected. If I run uhubctl I get the following result:

No compatible devices detected!
Run with -h to get usage info.

I repeat, if I plug a SOM iMX8M mini on the same board everything works correctly, so I suspect that it is a device tree configuration problem. I have compared the DTSI files for both devices and they are very different.

I’m using the USB_2 with a schematic very similar to that in figure 27, where the IC1A has been replaced by the AOZ1353DI-01 (it is the same one used in the Dhalia board). I’m using USB_1 in host mode (USB_1_ID=0) with the same schematic as USB_2.

image
image1035×432 47.8 KB

I hope someone can help me.

Thanks,
Julián

2

Hello @jbruno,

Just to confirm, are you using the default device tree (for the Verdin Development Board) from the Toradex Reference Minimal Image 6.3.0?
Also, is this problem also present on the Toradex Reference Minimal Image 6.7.0?

Best Regards,
Bruno

3

Dear @bruno.tx ,
Our custom card is based on the Dahlia card. To eliminate possible errors in our image, I have flashed the module with the Toradex Linux Reference Minimal BSP 6.3.0 image and configured the system as follows:

fw_setenv board 'dahlia-imx8mp'
fw_setenv board_name 'dahlia-imx8mp'
fw_setenv fdt_board 'dahlia'
fw_setenv fdtfile 'imx8mp-verdin-wifi-dahlia.dtb'
reboot

After rebooting the system, I have connected the camera to the USB_2 port and the error is similar:

[ 31.052778] usb 1-1: new high-speed USB device number 2 using xhci-hcd
[ 41.452784] xhci-hcd xhci-hcd.1.auto: Abort failed to stop command ring: -110
[ 41.470034] xhci-hcd xhci-hcd.1.auto: xHCI host controller not responding, assume dead
[ 41.477972] xhci-hcd xhci-hcd.1.auto: HC died; cleaning up
[ 41.483558] xhci-hcd xhci-hcd.1.auto: Timeout while waiting for configure endpoint command
[ 41.491888] usb 1-1: can’t set config #1, error -62
[ 41.497065] usb 1-1: USB disconnect, device number 2
[ 41.556854] kauditd_printk_skb: 3 callbacks suppressed
[ 41.556865] audit: type=1334 audit(1724917209.692:15): prog-id=0 op=UNLOAD
[ 41.568951] audit: type=1334 audit(1724917209.692:16): prog-id=0 op=UNLOAD

Best regards,
Julián

4

Dear @bruno.tx ,
I have repeated the test for BPS 6.7.0 and the error is the same.

image
image989×493 15.4 KB

I hope you can help me.

Thanks,
Julián

5

Hello @jbruno,

Thanks for the additional details.
I believe this is not a problem with the USB port, but the same problem from your other post regarding the DRP.

Can you confirm this by testing another device such as a flash drive, usb hub and/or input devices with your custom board paired with the Verdin iMX8MP?
This way we can rule out a hardware issue with your custom board.

I will reply on your other post to further debug that problem.

Best Regards,
Bruno