openwrt/target/linux/adm5120/files/arch/mips/adm5120/prom/generic.c

48 lines
859 B
C

/*
* Generic PROM routines
*
* Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/string.h>
#include <asm/bootinfo.h>
#include <prom/generic.h>
static int *_prom_argc;
static char **_prom_argv;
static char **_prom_envp;
char *generic_prom_getenv(char *envname)
{
char **env;
char *ret;
ret = NULL;
for (env = _prom_envp; *env != NULL; env++) {
if (strcmp(envname, *env++) == 0) {
ret = *env;
break;
}
}
return ret;
}
int generic_prom_present(void)
{
_prom_argc = (int *)fw_arg0;
_prom_argv = (char **)fw_arg1;
_prom_envp = (char **)fw_arg2;
return 1;
}