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/export.h> 12 #include <asm/bootinfo.h> 13 14 #include <loongson.h> 15 16 /* raw */ 17 unsigned long loongson_uart_base[MAX_UARTS] = {}; 18 /* ioremapped */ 19 unsigned long _loongson_uart_base[MAX_UARTS] = {}; 20 21 EXPORT_SYMBOL(loongson_uart_base); 22 EXPORT_SYMBOL(_loongson_uart_base); 23 prom_init_loongson_uart_base(void)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
