It seems like it's getting to the usb_hcd_init() call in arch/nios2nommu/kernel/usb.c where platform_device_register(&isp1362_hcd) is called but it seems the init code in drivers/usb/host/isp1362-hcd.c (ie. isp1362_init() is never called)
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Yep, ISP1362 HCD is selected in the menuconfig - hmm, interesting point tho, there's no object file after the make (ISP1362-hcd.o) in the drivers/usb/host directory. It's strange tho, the code in an adjacent directory drivers/usb/core had object files. Probably explains the problem above why that code never got called. Gonna see if i can figure out why this makefile isn't compiling isp1362-hcd.c.