arch/mips/pnx833x/common/prom.c


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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)
{
}