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
11 #include <asm/bootinfo.h>
12 #include <asm/addrspace.h>
13
14 #include <asm/mach-ralink/ralink_regs.h>
15
16 #include "common.h"
17
18 struct ralink_soc_info soc_info;
19
20 enum ralink_soc_type ralink_soc;
21 EXPORT_SYMBOL_GPL(ralink_soc);
22
get_system_type(void)23 const char *get_system_type(void)
24 {
25 return soc_info.sys_type;
26 }
27
prom_init_cmdline(void)28 static __init void prom_init_cmdline(void)
29 {
30 int argc;
31 char **argv;
32 int i;
33
34 pr_debug("prom: fw_arg0=%08x fw_arg1=%08x fw_arg2=%08x fw_arg3=%08x\n",
35 (unsigned int)fw_arg0, (unsigned int)fw_arg1,
36 (unsigned int)fw_arg2, (unsigned int)fw_arg3);
37
38 argc = fw_arg0;
39 argv = (char **) KSEG1ADDR(fw_arg1);
40
41 if (!argv) {
42 pr_debug("argv=%p is invalid, skipping\n",
43 argv);
44 return;
45 }
46
47 for (i = 0; i < argc; i++) {
48 char *p = (char *) KSEG1ADDR(argv[i]);
49
50 if (CPHYSADDR(p) && *p) {
51 pr_debug("argv[%d]: %s\n", i, p);
52 strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
53 strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
54 }
55 }
56 }
57
prom_init(void)58 void __init prom_init(void)
59 {
60 prom_soc_init(&soc_info);
61
62 pr_info("SoC Type: %s\n", get_system_type());
63
64 prom_init_cmdline();
65 }
66