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a3ed4951 WZ |
1 | /* |
2 | * Copyright (C) 2009 Lemote Inc. | |
f7a904df | 3 | * Author: Wu Zhangjin, wuzhangjin@gmail.com |
a3ed4951 | 4 | * |
70342287 RB |
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 | |
a3ed4951 WZ |
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 | ||
c3d8d850 WZ |
16 | /* ioremapped */ |
17 | unsigned long _loongson_uart_base; | |
a3ed4951 | 18 | EXPORT_SYMBOL(_loongson_uart_base); |
c3d8d850 WZ |
19 | /* raw */ |
20 | unsigned long loongson_uart_base; | |
21 | EXPORT_SYMBOL(loongson_uart_base); | |
a3ed4951 | 22 | |
c3d8d850 | 23 | void prom_init_loongson_uart_base(void) |
a3ed4951 | 24 | { |
c3d8d850 WZ |
25 | switch (mips_machtype) { |
26 | case MACH_LEMOTE_FL2E: | |
27 | loongson_uart_base = LOONGSON_PCIIO_BASE + 0x3f8; | |
28 | break; | |
29 | case MACH_LEMOTE_FL2F: | |
30 | case MACH_LEMOTE_LL2F: | |
31 | loongson_uart_base = LOONGSON_PCIIO_BASE + 0x2f8; | |
32 | break; | |
33 | case MACH_LEMOTE_ML2F7: | |
34 | case MACH_LEMOTE_YL2F89: | |
35 | case MACH_DEXXON_GDIUM2F10: | |
36 | case MACH_LEMOTE_NAS: | |
37 | default: | |
38 | /* The CPU provided serial port */ | |
39 | loongson_uart_base = LOONGSON_LIO1_BASE + 0x3f8; | |
40 | break; | |
41 | } | |
42 | ||
a3ed4951 | 43 | _loongson_uart_base = |
c3d8d850 | 44 | (unsigned long)ioremap_nocache(loongson_uart_base, 8); |
a3ed4951 | 45 | } |