Commit | Line | Data |
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f58a9d17 GL |
1 | /* |
2 | * PS3 time and rtc routines. | |
3 | * | |
4 | * Copyright (C) 2006 Sony Computer Entertainment Inc. | |
5 | * Copyright 2006 Sony Corp. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; version 2 of the License. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
20 | ||
21 | #include <linux/kernel.h> | |
0b5f037a | 22 | #include <linux/platform_device.h> |
f58a9d17 | 23 | |
7b6a09f3 | 24 | #include <asm/firmware.h> |
f58a9d17 GL |
25 | #include <asm/rtc.h> |
26 | #include <asm/lv1call.h> | |
27 | #include <asm/ps3.h> | |
28 | ||
29 | #include "platform.h" | |
30 | ||
31 | #define dump_tm(_a) _dump_tm(_a, __func__, __LINE__) | |
32 | static void _dump_tm(const struct rtc_time *tm, const char* func, int line) | |
33 | { | |
34 | pr_debug("%s:%d tm_sec %d\n", func, line, tm->tm_sec); | |
35 | pr_debug("%s:%d tm_min %d\n", func, line, tm->tm_min); | |
36 | pr_debug("%s:%d tm_hour %d\n", func, line, tm->tm_hour); | |
37 | pr_debug("%s:%d tm_mday %d\n", func, line, tm->tm_mday); | |
38 | pr_debug("%s:%d tm_mon %d\n", func, line, tm->tm_mon); | |
39 | pr_debug("%s:%d tm_year %d\n", func, line, tm->tm_year); | |
40 | pr_debug("%s:%d tm_wday %d\n", func, line, tm->tm_wday); | |
41 | } | |
42 | ||
43 | #define dump_time(_a) _dump_time(_a, __func__, __LINE__) | |
848cfdc5 | 44 | static void __maybe_unused _dump_time(int time, const char *func, |
f58a9d17 GL |
45 | int line) |
46 | { | |
47 | struct rtc_time tm; | |
48 | ||
49 | to_tm(time, &tm); | |
50 | ||
51 | pr_debug("%s:%d time %d\n", func, line, time); | |
52 | _dump_tm(&tm, func, line); | |
53 | } | |
54 | ||
f58a9d17 GL |
55 | void __init ps3_calibrate_decr(void) |
56 | { | |
57 | int result; | |
58 | u64 tmp; | |
59 | ||
60 | result = ps3_repository_read_be_tb_freq(0, &tmp); | |
61 | BUG_ON(result); | |
62 | ||
63 | ppc_tb_freq = tmp; | |
64 | ppc_proc_freq = ppc_tb_freq * 40; | |
f58a9d17 GL |
65 | } |
66 | ||
67 | static u64 read_rtc(void) | |
68 | { | |
69 | int result; | |
70 | u64 rtc_val; | |
71 | u64 tb_val; | |
72 | ||
73 | result = lv1_get_rtc(&rtc_val, &tb_val); | |
74 | BUG_ON(result); | |
75 | ||
76 | return rtc_val; | |
77 | } | |
78 | ||
0b5f037a | 79 | unsigned long __init ps3_get_boot_time(void) |
f58a9d17 | 80 | { |
0b5f037a | 81 | return read_rtc() + ps3_os_area_get_rtc_diff(); |
f58a9d17 GL |
82 | } |
83 | ||
0b5f037a | 84 | static int __init ps3_rtc_init(void) |
f58a9d17 | 85 | { |
0b5f037a | 86 | struct platform_device *pdev; |
f58a9d17 | 87 | |
7b6a09f3 GU |
88 | if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) |
89 | return -ENODEV; | |
90 | ||
0b5f037a GU |
91 | pdev = platform_device_register_simple("rtc-ps3", -1, NULL, 0); |
92 | if (IS_ERR(pdev)) | |
93 | return PTR_ERR(pdev); | |
94 | ||
95 | return 0; | |
f58a9d17 | 96 | } |
0b5f037a GU |
97 | |
98 | module_init(ps3_rtc_init); |