Usb not working after initramfs change

I have used both initramfs-tools and dracut to try and create a new initramfs image. But every time I try I find the usb system is broken. I think for some reason it is not including the tegra xusb drivers. How would I get around this?

The tegra usb firmware is in the initrd. You can check our initrd from jetpack BSP. And the usb firmware should be under /lib/firmware/.

Is this a dev kit?