com_fifo
bus_space_write_1(iot, ioh, com_fifo, 0);
CSR_WRITE(com_port, com_fifo,
OUTB(com_fifo,
bus_space_write_1(bst, bsh, com_fifo,
REGWRITE_1(VR4181_SIU_ADDR, com_fifo,
outb(combase + com_fifo,
com0addr[com_fifo] = htole32(
com0addr[com_fifo] = htobe32(
bus_space_write_1(iot, ioh, com_fifo,
CSR_WRITE(com_port, com_fifo,
[COM_REG_FIFO] = com_fifo,
[COM_REG_TCR] = com_fifo,