1/* 2 * prom.c: 3 * 4 * Copyright 2008 NXP Semiconductors 5 * Chris Steel <chris.steel@nxp.com> 6 * Daniel Laird <daniel.j.laird@nxp.com> 7 * 8 * Based on software written by: 9 * Nikita Youshchenko <yoush@debian.org>, based on PNX8550 code. 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., 675 Mass Ave, Cambridge, MA 02139, USA. 24 */ 25#include <linux/init.h> 26#include <asm/bootinfo.h> 27#include <linux/string.h> 28 29void __init prom_init_cmdline(void) 30{ 31 int argc = fw_arg0; 32 char **argv = (char **)fw_arg1; 33 char *c = &(arcs_cmdline[0]); 34 int i; 35 36 for (i = 1; i < argc; i++) { 37 strcpy(c, argv[i]); 38 c += strlen(argv[i]); 39 if (i < argc-1) 40 *c++ = ' '; 41 } 42 *c = 0; 43} 44 45char __init *prom_getenv(char *envname) 46{ 47 extern char **prom_envp; 48 char **env = prom_envp; 49 int i; 50 51 i = strlen(envname); 52 53 while (*env) { 54 if (strncmp(envname, *env, i) == 0 && *(*env+i) == '=') 55 return *env + i + 1; 56 env++; 57 } 58 59 return 0; 60} 61 62void __init prom_free_prom_memory(void) 63{ 64} 65