Hello, everyone!
We are developing a custom board with the MYC-YA157C module. We took the the MyIR device tree configuration and add our layer there. The vendor config had a USB_OTG capable of supplying power and acting as a host. A separate chip, controlled by i2s, was responsible for supplying power to the USB. In our device, we decided to simplify and not provide power via USB, because we plan to use this interface only for the firmware downloading. The power chip was removed.
Now, when starting, the u-boot freeses. I rebuilt it with a more verbose configuration and got the following debug output before the freezing:
...
usb_add_config: interface 0 = f_fastboot/d7c2e700
g_dnl_get_board_bcd_device_number
g_dnl_bind: calling usb_gadget_connect for controller 'dwc2-udc'
usb_dnl_fastboot: ready
dwc2_udc_otg init failed
set_config: high speed config #1: usb_dnload
fastboot_set_alt: func: f_fastboot intf: 0 alt: 0
As far as I understand, I need to turn off the USB-OTG driver and configure this interface as a normal USB slave.
I am in trouble because I have no experience with this. A colleague quit and I was left with the legacy Yocto configuration.
Could you tell me what steps need to be taken?
Is there any project where a similar problem was solved?
If necessary, I can show any additional information on the problem.
Thank you in advance!
