[U-Boot] U-boot hangs

[Gorelik, Jacob (335F)]

Hello,

I am trying to boot linux on a PPC440GP based board; however, u-boot hangs after decompressing the kernel. I checked the __log_buf, and I see a message saying that the interrupt is not syncing and a message saying that  there is a BUG_ON uic_get_irq (BUG_ON(! primary_uic)).
It seems like the function uic_init_tree() is not getting called. I, also, see do_IRQ () function getting called. Is the problem in the device tree?

Thank you,
Jacob