blob: e34fcfd0d5ca5763983c2b0a248352275b40f49b [file] [log] [blame]
John Crispin171bb2f2011-03-30 09:27:47 +02001/*
2 * This program is free software; you can redistribute it and/or modify it
3 * under the terms of the GNU General Public License version 2 as published
4 * by the Free Software Foundation.
5 *
6 * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
7 */
8
John Crispin4af92e72011-11-10 21:33:07 +01009#include <linux/export.h>
John Crispin171bb2f2011-03-30 09:27:47 +020010#include <linux/clk.h>
11#include <asm/bootinfo.h>
12#include <asm/time.h>
13
14#include <lantiq.h>
15
16#include "prom.h"
17#include "clk.h"
18
19static struct ltq_soc_info soc_info;
20
21unsigned int ltq_get_cpu_ver(void)
22{
23 return soc_info.rev;
24}
25EXPORT_SYMBOL(ltq_get_cpu_ver);
26
27unsigned int ltq_get_soc_type(void)
28{
29 return soc_info.type;
30}
31EXPORT_SYMBOL(ltq_get_soc_type);
32
33const char *get_system_type(void)
34{
35 return soc_info.sys_type;
36}
37
38void prom_free_prom_memory(void)
39{
40}
41
42static void __init prom_init_cmdline(void)
43{
44 int argc = fw_arg0;
45 char **argv = (char **) KSEG1ADDR(fw_arg1);
46 int i;
47
48 for (i = 0; i < argc; i++) {
49 char *p = (char *) KSEG1ADDR(argv[i]);
50
51 if (p && *p) {
52 strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
53 strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
54 }
55 }
56}
57
58void __init prom_init(void)
59{
60 struct clk *clk;
61
62 ltq_soc_detect(&soc_info);
63 clk_init();
64 clk = clk_get(0, "cpu");
65 snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev1.%d",
66 soc_info.name, soc_info.rev);
67 clk_put(clk);
68 soc_info.sys_type[LTQ_SYS_TYPE_LEN - 1] = '\0';
69 pr_info("SoC: %s\n", soc_info.sys_type);
70 prom_init_cmdline();
71}