1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 *
 4 *  Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
 5 *  Copyright (C) 2010 Joonas Lahtinen <joonas.lahtinen@gmail.com>
 6 *  Copyright (C) 2013 John Crispin <john@phrozen.org>
 7 */
 8
 9#include <linux/string.h>
10#include <linux/of_fdt.h>
11#include <linux/of_platform.h>
12
13#include <asm/bootinfo.h>
14#include <asm/addrspace.h>
15
16#include <asm/mach-ralink/ralink_regs.h>
17
18#include "common.h"
19
20struct ralink_soc_info soc_info;
21
22enum ralink_soc_type ralink_soc;
23EXPORT_SYMBOL_GPL(ralink_soc);
24
25const char *get_system_type(void)
26{
27	return soc_info.sys_type;
28}
29
30static __init void prom_init_cmdline(void)
31{
32	int argc;
33	char **argv;
34	int i;
35
36	pr_debug("prom: fw_arg0=%08x fw_arg1=%08x fw_arg2=%08x fw_arg3=%08x\n",
37	       (unsigned int)fw_arg0, (unsigned int)fw_arg1,
38	       (unsigned int)fw_arg2, (unsigned int)fw_arg3);
39
40	argc = fw_arg0;
41	argv = (char **) KSEG1ADDR(fw_arg1);
42
43	if (!argv) {
44		pr_debug("argv=%p is invalid, skipping\n",
45		       argv);
46		return;
47	}
48
49	for (i = 0; i < argc; i++) {
50		char *p = (char *) KSEG1ADDR(argv[i]);
51
52		if (CPHYSADDR(p) && *p) {
53			pr_debug("argv[%d]: %s\n", i, p);
54			strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
55			strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
56		}
57	}
58}
59
60void __init prom_init(void)
61{
62	prom_soc_init(&soc_info);
63
64	pr_info("SoC Type: %s\n", get_system_type());
65
66	prom_init_cmdline();
67}