?? prom.c
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/* * * BRIEF MODULE DESCRIPTION * PROM library initialisation code, assuming a version of * pmon is the boot code. * * Copyright 2000 MontaVista Software Inc. * Author: MontaVista Software, Inc. * ppopov@mvista.com or source@mvista.com * * This file was derived from Carsten Langgaard's * arch/mips/mips-boards/xx files. * * Carsten Langgaard, carstenl@mips.com * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. * * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * 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/config.h>#include <linux/kernel.h>#include <linux/init.h>#include <linux/string.h>#include <asm/bootinfo.h>/* #define DEBUG_CMDLINE */char arcs_cmdline[COMMAND_LINE_SIZE];int prom_argc;char **prom_argv, **prom_envp;typedef struct { char *name;/* char *val; */} t_env_var;char * __init prom_getcmdline(void){ return &(arcs_cmdline[0]);}void __init prom_init_cmdline(void){ char *cp; int actr; actr = 1; /* Always ignore argv[0] */ cp = &(arcs_cmdline[0]); while(actr < prom_argc) { strcpy(cp, prom_argv[actr]); cp += strlen(prom_argv[actr]); *cp++ = ' '; actr++; } if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */ --cp; *cp = '\0';}char *prom_getenv(char *envname){ /* * Return a pointer to the given environment variable. * Environment variables are stored in the form of "memsize=64". */ t_env_var *env = (t_env_var *)prom_envp; int i; i = strlen(envname); while(env->name) { if(strncmp(envname, env->name, i) == 0) { return(env->name + strlen(envname) + 1); } env++; } return(NULL);}static inline unsigned char str2hexnum(unsigned char c){ if(c >= '0' && c <= '9') return c - '0'; if(c >= 'a' && c <= 'f') return c - 'a' + 10; return 0; /* foo */}int __init page_is_ram(unsigned long pagenr){ return 1;}void prom_free_prom_memory (void){}
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