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171bb2f1 JC |
1 | /* |
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 | ||
4af92e7a | 9 | #include <linux/export.h> |
171bb2f1 JC |
10 | #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 | ||
19 | static struct ltq_soc_info soc_info; | |
20 | ||
21 | unsigned int ltq_get_cpu_ver(void) | |
22 | { | |
23 | return soc_info.rev; | |
24 | } | |
25 | EXPORT_SYMBOL(ltq_get_cpu_ver); | |
26 | ||
27 | unsigned int ltq_get_soc_type(void) | |
28 | { | |
29 | return soc_info.type; | |
30 | } | |
31 | EXPORT_SYMBOL(ltq_get_soc_type); | |
32 | ||
33 | const char *get_system_type(void) | |
34 | { | |
35 | return soc_info.sys_type; | |
36 | } | |
37 | ||
38 | void prom_free_prom_memory(void) | |
39 | { | |
40 | } | |
41 | ||
42 | static 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 | ||
58 | void __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 | } |