/* * prom.c: * * Copyright 2008 NXP Semiconductors * Chris Steel <chris.steel@nxp.com> * Daniel Laird <daniel.j.laird@nxp.com> * * Based on software written by: * Nikita Youshchenko <yoush@debian.org>, based on PNX8550 code. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/init.h> #include <asm/bootinfo.h> #include <linux/string.h> void __init prom_init_cmdline(void) { int argc = fw_arg0; char **argv = (char **)fw_arg1; char *c = &(arcs_cmdline[0]); int i; for (i = 1; i < argc; i++) { strcpy(c, argv[i]); c += strlen(argv[i]); if (i < argc-1) *c++ = ' '; } *c = 0; } char __init *prom_getenv(char *envname) { extern char **prom_envp; char **env = prom_envp; int i; i = strlen(envname); while (*env) { if (strncmp(envname, *env, i) == 0 && *(*env+i) == '=') return *env + i + 1; env++; } return 0; } void __init prom_free_prom_memory(void) { } char * __init prom_getcmdline(void) { return arcs_cmdline; }