1/*
2 * Copyright (C) 2009 Lemote Inc.
3 * Author: Wu Zhangjin, wuzhangjin@gmail.com
4 *
5 * This program is free software; you can redistribute	it and/or modify it
6 * under  the terms of	the GNU General	 Public License as published by the
7 * Free Software Foundation;  either version 2 of the  License, or (at your
8 * option) any later version.
9 */
10
11#include <linux/module.h>
12#include <asm/bootinfo.h>
13
14#include <loongson.h>
15
16/* raw */
17unsigned long loongson_uart_base[MAX_UARTS] = {};
18/* ioremapped */
19unsigned long _loongson_uart_base[MAX_UARTS] = {};
20
21EXPORT_SYMBOL(loongson_uart_base);
22EXPORT_SYMBOL(_loongson_uart_base);
23
24void prom_init_loongson_uart_base(void)
25{
26	switch (mips_machtype) {
27	case MACH_LOONGSON_GENERIC:
28		/* The CPU provided serial port (CPU) */
29		loongson_uart_base[0] = LOONGSON_REG_BASE + 0x1e0;
30		break;
31	case MACH_LEMOTE_FL2E:
32		loongson_uart_base[0] = LOONGSON_PCIIO_BASE + 0x3f8;
33		break;
34	case MACH_LEMOTE_FL2F:
35	case MACH_LEMOTE_LL2F:
36		loongson_uart_base[0] = LOONGSON_PCIIO_BASE + 0x2f8;
37		break;
38	case MACH_LEMOTE_ML2F7:
39	case MACH_LEMOTE_YL2F89:
40	case MACH_DEXXON_GDIUM2F10:
41	case MACH_LEMOTE_NAS:
42	default:
43		/* The CPU provided serial port (LPC) */
44		loongson_uart_base[0] = LOONGSON_LIO1_BASE + 0x3f8;
45		break;
46	}
47
48	_loongson_uart_base[0] =
49		(unsigned long)ioremap_nocache(loongson_uart_base[0], 8);
50}
51