DUART16552_PADDR 238 arch/xtensa/platforms/xtfpga/setup.c .start = DUART16552_PADDR, DUART16552_PADDR 239 arch/xtensa/platforms/xtfpga/setup.c .end = DUART16552_PADDR + 0x1f, DUART16552_PADDR 245 arch/xtensa/platforms/xtfpga/setup.c .mapbase = DUART16552_PADDR,