1/* 2 * Based on Ocelot Linux port, which is 3 * Copyright 2001 MontaVista Software Inc. 4 * Author: jsun@mvista.com or jsun@junsun.net 5 * 6 * Copyright 2003 ICT CAS 7 * Author: Michael Guo <guoyi@ict.ac.cn> 8 * 9 * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology 10 * Author: Fuxin Zhang, zhangfx@lemote.com 11 * 12 * Copyright (C) 2009 Lemote Inc. 13 * Author: Wu Zhangjin, wuzhangjin@gmail.com 14 * 15 * This program is free software; you can redistribute it and/or modify it 16 * under the terms of the GNU General Public License as published by the 17 * Free Software Foundation; either version 2 of the License, or (at your 18 * option) any later version. 19 */ 20#include <asm/bootinfo.h> 21 22#include <loongson.h> 23 24void __init prom_init_cmdline(void) 25{ 26 int prom_argc; 27 /* pmon passes arguments in 32bit pointers */ 28 int *_prom_argv; 29 int i; 30 long l; 31 32 /* firmware arguments are initialized in head.S */ 33 prom_argc = fw_arg0; 34 _prom_argv = (int *)fw_arg1; 35 36 /* arg[0] is "g", the rest is boot parameters */ 37 arcs_cmdline[0] = '\0'; 38 for (i = 1; i < prom_argc; i++) { 39 l = (long)_prom_argv[i]; 40 if (strlen(arcs_cmdline) + strlen(((char *)l) + 1) 41 >= sizeof(arcs_cmdline)) 42 break; 43 strcat(arcs_cmdline, ((char *)l)); 44 strcat(arcs_cmdline, " "); 45 } 46 47 if ((strstr(arcs_cmdline, "console=")) == NULL) 48 strcat(arcs_cmdline, " console=ttyS0,115200"); 49 if ((strstr(arcs_cmdline, "root=")) == NULL) 50 strcat(arcs_cmdline, " root=/dev/hda1"); 51 52 prom_init_machtype(); 53} 54