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With U-Boot 2023.01 booting on Raspberry Pi 4 32-bit (at least with 4 or 8GB of memory) freezes when trying to enumerate USB devices. It seems that the PCIe initialization partially fails, which causes the USB XHCI initialization to fail. It seems that a new restriction on viable addresses for PCIe initialization causes the problem. Revert the offending commit to make U-Boot properly detect USB devices again.