Hello,
I am working on a custonimx7ulp board and tried to implement the path here:
https://community.nxp.com/t5/i-MX-Processors/imx7ulp-USB-HSIC/td-p/1371785
It seems it is not working as i get this error message and don't detect the hub at all:
dmesg | grep usb
[ 0.149419] usbcore: registered new interface driver usbfs
[ 0.149566] usbcore: registered new interface driver hub
[ 0.149695] usbcore: registered new device driver usb
[ 0.150097] usb_phy_generic: probe of 40000000.bus:usbphy_nop2 failed with error -2
[ 1.264248] usbcore: registered new interface driver r8152
[ 1.269900] usbcore: registered new interface driver lan78xx
[ 1.275900] usbcore: registered new interface driver asix
[ 1.281502] usbcore: registered new interface driver ax88179_178a
[ 1.287680] usbcore: registered new interface driver cdc_ether
[ 1.293662] usbcore: registered new interface driver smsc95xx
[ 1.299477] usbcore: registered new interface driver net1080
[ 1.305251] usbcore: registered new interface driver cdc_subset
[ 1.311297] usbcore: registered new interface driver zaurus
[ 1.316955] usbcore: registered new interface driver MOSCHIP usb-ethernet driver
[ 1.324588] usbcore: registered new interface driver cdc_ncm
[ 1.330329] usbcore: registered new interface driver r8153_ecm
[ 1.347808] usbcore: registered new interface driver usb-storage
[ 1.457540] usbcore: registered new interface driver btusb
[ 1.487531] usbcore: registered new interface driver usbhid
[ 1.499526] usbhid: USB HID core driver
I am working with linux 5.15 kirkstone and have the .dts files attached.
The original patch is for L4.14, some configurations or driver may changed.
Can you check the kernel config and enable more debug log in drivers?