1/* 2 * arch/mips/emma2rh/common/prom.c 3 * This file is prom file. 4 * 5 * Copyright (C) NEC Electronics Corporation 2004-2006 6 * 7 * This file is based on the arch/mips/ddb5xxx/common/prom.c 8 * 9 * Copyright 2001 MontaVista Software Inc. 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; either version 2 of the License, or 14 * (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 24 */ 25#include <linux/init.h> 26#include <linux/mm.h> 27#include <linux/sched.h> 28#include <linux/bootmem.h> 29 30#include <asm/addrspace.h> 31#include <asm/bootinfo.h> 32#include <asm/emma2rh/emma2rh.h> 33#include <asm/debug.h> 34 35const char *get_system_type(void) 36{ 37 switch (mips_machtype) { 38 case MACH_NEC_MARKEINS: 39 return "NEC EMMA2RH Mark-eins"; 40 default: 41 return "Unknown NEC board"; 42 } 43} 44 45/* [jsun@junsun.net] PMON passes arguments in C main() style */ 46void __init prom_init(void) 47{ 48 int argc = fw_arg0; 49 char **arg = (char **)fw_arg1; 50 int i; 51 52 /* if user passes kernel args, ignore the default one */ 53 if (argc > 1) 54 arcs_cmdline[0] = '\0'; 55 56 /* arg[0] is "g", the rest is boot parameters */ 57 for (i = 1; i < argc; i++) { 58 if (strlen(arcs_cmdline) + strlen(arg[i] + 1) 59 >= sizeof(arcs_cmdline)) 60 break; 61 strcat(arcs_cmdline, arg[i]); 62 strcat(arcs_cmdline, " "); 63 } 64 65 mips_machgroup = MACH_GROUP_NEC_EMMA2RH; 66 67#if defined(CONFIG_MARKEINS) 68 mips_machtype = MACH_NEC_MARKEINS; 69 add_memory_region(0, EMMA2RH_RAM_SIZE, BOOT_MEM_RAM); 70#endif 71 72} 73 74void __init prom_free_prom_memory(void) 75{ 76} 77