MV_MBUS_CTRL_REGS_LEN
MV_MBUS_CTRL_REGS_LEN, 0, &vaddr_iowind);
bus_space_barrier(fdtbus_bs_tag, vaddr_iowind, 0, MV_MBUS_CTRL_REGS_LEN,
bus_space_unmap(fdtbus_bs_tag, vaddr_iowind, MV_MBUS_CTRL_REGS_LEN);