The user interrupt vector needs to be installed before the interrupts are unmasked otherwise the timer tick isn't handled and boot up gets stuck in calibrate_delay(). Assisted-by: Claude:claude-fable-5 # Wrote Apollo DN3000 emulator using QEMU Fixes: 0aa78106c661cf6c ("[PATCH] m68k: convert apollo irq code") Signed-off-by: Daniel Palmer <daniel@0x0f.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://patch.msgid.link/20260828094940.3882602-1-daniel@0x0f.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>