/* * Copyright 2001 MontaVista Software Inc. * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net * * arch/mips/vr4181/common/serial.c *     initialize serial port on vr4181. * * This program is free software; you can redistribute	it and/or modify it * under  the terms of	the GNU General	 Public License as published by the * Free Software Foundation;  either version 2 of the  License, or (at your * option) any later version. * *//* * [jsun, 010925] * You need to make sure rs_table has at least one element in  * drivers/char/serial.c file.	There is no good way to do it right * now.	 A workaround is to include CONFIG_SERIAL_MANY_PORTS in your * configure file, which would gives you 64 ports and wastes 11K ram. */#include <linux/types.h>#include <linux/kernel.h>#include <linux/init.h>#include <linux/serial.h>#include <asm/vr4181/vr4181.h>void __init vr4181_init_serial(void){	struct serial_struct s;	/* turn on UART clock */	*VR4181_CMUCLKMSK |= VR4181_CMUCLKMSK_MSKSIU;	/* clear memory */	memset(&s, 0, sizeof(s));	s.line = 0;			/* we set the first one */	s.baud_base = 1152000;	s.irq = VR4181_IRQ_SIU;	s.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST; /* STD_COM_FLAGS */	s.iomem_base = (u8*)VR4181_SIURB;	s.iomem_reg_shift = 0;	s.io_type = SERIAL_IO_MEM;	if (early_serial_setup(&s) != 0) {		panic("vr4181_init_serial() failed!");	}}