diff options
Diffstat (limited to 'include/asm-sh/watchdog.h')
-rw-r--r-- | include/asm-sh/watchdog.h | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/include/asm-sh/watchdog.h b/include/asm-sh/watchdog.h deleted file mode 100644 index d19ea62ef8c6..000000000000 --- a/include/asm-sh/watchdog.h +++ /dev/null | |||
@@ -1,107 +0,0 @@ | |||
1 | /* | ||
2 | * include/asm-sh/watchdog.h | ||
3 | * | ||
4 | * Copyright (C) 2002, 2003 Paul Mundt | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify it | ||
7 | * under the terms of the GNU General Public License as published by the | ||
8 | * Free Software Foundation; either version 2 of the License, or (at your | ||
9 | * option) any later version. | ||
10 | */ | ||
11 | #ifndef __ASM_SH_WATCHDOG_H | ||
12 | #define __ASM_SH_WATCHDOG_H | ||
13 | #ifdef __KERNEL__ | ||
14 | |||
15 | #include <linux/types.h> | ||
16 | #include <asm/cpu/watchdog.h> | ||
17 | #include <asm/io.h> | ||
18 | |||
19 | /* | ||
20 | * See asm/cpu-sh2/watchdog.h for explanation of this stupidity.. | ||
21 | */ | ||
22 | #ifndef WTCNT_R | ||
23 | # define WTCNT_R WTCNT | ||
24 | #endif | ||
25 | |||
26 | #ifndef WTCSR_R | ||
27 | # define WTCSR_R WTCSR | ||
28 | #endif | ||
29 | |||
30 | #define WTCNT_HIGH 0x5a | ||
31 | #define WTCSR_HIGH 0xa5 | ||
32 | |||
33 | #define WTCSR_CKS2 0x04 | ||
34 | #define WTCSR_CKS1 0x02 | ||
35 | #define WTCSR_CKS0 0x01 | ||
36 | |||
37 | /* | ||
38 | * CKS0-2 supports a number of clock division ratios. At the time the watchdog | ||
39 | * is enabled, it defaults to a 41 usec overflow period .. we overload this to | ||
40 | * something a little more reasonable, and really can't deal with anything | ||
41 | * lower than WTCSR_CKS_1024, else we drop back into the usec range. | ||
42 | * | ||
43 | * Clock Division Ratio Overflow Period | ||
44 | * -------------------------------------------- | ||
45 | * 1/32 (initial value) 41 usecs | ||
46 | * 1/64 82 usecs | ||
47 | * 1/128 164 usecs | ||
48 | * 1/256 328 usecs | ||
49 | * 1/512 656 usecs | ||
50 | * 1/1024 1.31 msecs | ||
51 | * 1/2048 2.62 msecs | ||
52 | * 1/4096 5.25 msecs | ||
53 | */ | ||
54 | #define WTCSR_CKS_32 0x00 | ||
55 | #define WTCSR_CKS_64 0x01 | ||
56 | #define WTCSR_CKS_128 0x02 | ||
57 | #define WTCSR_CKS_256 0x03 | ||
58 | #define WTCSR_CKS_512 0x04 | ||
59 | #define WTCSR_CKS_1024 0x05 | ||
60 | #define WTCSR_CKS_2048 0x06 | ||
61 | #define WTCSR_CKS_4096 0x07 | ||
62 | |||
63 | /** | ||
64 | * sh_wdt_read_cnt - Read from Counter | ||
65 | * Reads back the WTCNT value. | ||
66 | */ | ||
67 | static inline __u8 sh_wdt_read_cnt(void) | ||
68 | { | ||
69 | return ctrl_inb(WTCNT_R); | ||
70 | } | ||
71 | |||
72 | /** | ||
73 | * sh_wdt_write_cnt - Write to Counter | ||
74 | * @val: Value to write | ||
75 | * | ||
76 | * Writes the given value @val to the lower byte of the timer counter. | ||
77 | * The upper byte is set manually on each write. | ||
78 | */ | ||
79 | static inline void sh_wdt_write_cnt(__u8 val) | ||
80 | { | ||
81 | ctrl_outw((WTCNT_HIGH << 8) | (__u16)val, WTCNT); | ||
82 | } | ||
83 | |||
84 | /** | ||
85 | * sh_wdt_read_csr - Read from Control/Status Register | ||
86 | * | ||
87 | * Reads back the WTCSR value. | ||
88 | */ | ||
89 | static inline __u8 sh_wdt_read_csr(void) | ||
90 | { | ||
91 | return ctrl_inb(WTCSR_R); | ||
92 | } | ||
93 | |||
94 | /** | ||
95 | * sh_wdt_write_csr - Write to Control/Status Register | ||
96 | * @val: Value to write | ||
97 | * | ||
98 | * Writes the given value @val to the lower byte of the control/status | ||
99 | * register. The upper byte is set manually on each write. | ||
100 | */ | ||
101 | static inline void sh_wdt_write_csr(__u8 val) | ||
102 | { | ||
103 | ctrl_outw((WTCSR_HIGH << 8) | (__u16)val, WTCSR); | ||
104 | } | ||
105 | |||
106 | #endif /* __KERNEL__ */ | ||
107 | #endif /* __ASM_SH_WATCHDOG_H */ | ||