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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 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.
*/
#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)
{
}
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