1 What: /sys/class/watchdog/watchdogn/ 1 What: /sys/class/watchdog/watchdogn/bootstatus
2 Date: August 2015 2 Date: August 2015
3 Contact: Wim Van Sebroeck <wim@iguana.be 3 Contact: Wim Van Sebroeck <wim@iguana.be>
4 Description: 4 Description:
5 It is a read only file. It con 5 It is a read only file. It contains status of the watchdog
6 device at boot. It is equivale 6 device at boot. It is equivalent to WDIOC_GETBOOTSTATUS of
7 ioctl interface. 7 ioctl interface.
8 8
9 What: /sys/class/watchdog/watchdogn/ <<
10 Date: April 2023 <<
11 Contact: Thomas Weißschuh <<
12 Description: <<
13 It is a read only file. It con <<
14 <<
15 What: /sys/class/watchdog/watchdogn/ <<
16 Date: April 2023 <<
17 Contact: Thomas Weißschuh <<
18 Description: <<
19 It is a read only file. It con <<
20 watchdog device. <<
21 <<
22 What: /sys/class/watchdog/watchdogn/ 9 What: /sys/class/watchdog/watchdogn/identity
23 Date: August 2015 10 Date: August 2015
24 Contact: Wim Van Sebroeck <wim@iguana.be 11 Contact: Wim Van Sebroeck <wim@iguana.be>
25 Description: 12 Description:
26 It is a read only file. It con 13 It is a read only file. It contains identity string of
27 watchdog device. 14 watchdog device.
28 15
29 What: /sys/class/watchdog/watchdogn/ 16 What: /sys/class/watchdog/watchdogn/nowayout
30 Date: August 2015 17 Date: August 2015
31 Contact: Wim Van Sebroeck <wim@iguana.be 18 Contact: Wim Van Sebroeck <wim@iguana.be>
32 Description: 19 Description:
33 It is a read/write file. While !! 20 It is a read only file. While reading, it gives '1' if that
34 if the device has the nowayout !! 21 device supports nowayout feature else, it gives '0'.
35 it gives '0'. Writing a '1' to <<
36 nowayout feature. Once set, th <<
37 cannot be disabled, so writing <<
38 effect (if the feature was alr <<
39 results in a permission error. <<
40 22
41 What: /sys/class/watchdog/watchdogn/ 23 What: /sys/class/watchdog/watchdogn/state
42 Date: August 2015 24 Date: August 2015
43 Contact: Wim Van Sebroeck <wim@iguana.be 25 Contact: Wim Van Sebroeck <wim@iguana.be>
44 Description: 26 Description:
45 It is a read only file. It giv 27 It is a read only file. It gives active/inactive status of
46 watchdog device. 28 watchdog device.
47 29
48 What: /sys/class/watchdog/watchdogn/ 30 What: /sys/class/watchdog/watchdogn/status
49 Date: August 2015 31 Date: August 2015
50 Contact: Wim Van Sebroeck <wim@iguana.be 32 Contact: Wim Van Sebroeck <wim@iguana.be>
51 Description: 33 Description:
52 It is a read only file. It con 34 It is a read only file. It contains watchdog device's
53 internal status bits. It is eq 35 internal status bits. It is equivalent to WDIOC_GETSTATUS
54 of ioctl interface. 36 of ioctl interface.
55 37
56 What: /sys/class/watchdog/watchdogn/ 38 What: /sys/class/watchdog/watchdogn/timeleft
57 Date: August 2015 39 Date: August 2015
58 Contact: Wim Van Sebroeck <wim@iguana.be 40 Contact: Wim Van Sebroeck <wim@iguana.be>
59 Description: 41 Description:
60 It is a read only file. It con 42 It is a read only file. It contains value of time left for
61 reset generation. It is equiva 43 reset generation. It is equivalent to WDIOC_GETTIMELEFT of
62 ioctl interface. 44 ioctl interface.
63 45
64 What: /sys/class/watchdog/watchdogn/ 46 What: /sys/class/watchdog/watchdogn/timeout
65 Date: August 2015 47 Date: August 2015
66 Contact: Wim Van Sebroeck <wim@iguana.be 48 Contact: Wim Van Sebroeck <wim@iguana.be>
67 Description: 49 Description:
68 It is a read only file. It is 50 It is a read only file. It is read to know about current
69 value of timeout programmed. 51 value of timeout programmed.
70 52
71 What: /sys/class/watchdog/watchdogn/ 53 What: /sys/class/watchdog/watchdogn/pretimeout
72 Date: December 2016 54 Date: December 2016
73 Contact: Wim Van Sebroeck <wim@iguana.be 55 Contact: Wim Van Sebroeck <wim@iguana.be>
74 Description: 56 Description:
75 It is a read only file. It spe 57 It is a read only file. It specifies the time in seconds before
76 timeout when the pretimeout in 58 timeout when the pretimeout interrupt is delivered. Pretimeout
77 is an optional feature. 59 is an optional feature.
78 60
79 What: /sys/class/watchdog/watchdogn/ 61 What: /sys/class/watchdog/watchdogn/pretimeout_avaialable_governors
80 Date: February 2017 62 Date: February 2017
81 Contact: Wim Van Sebroeck <wim@iguana.be 63 Contact: Wim Van Sebroeck <wim@iguana.be>
82 Description: 64 Description:
83 It is a read only file. It sho 65 It is a read only file. It shows the pretimeout governors
84 available for this watchdog. 66 available for this watchdog.
85 67
86 What: /sys/class/watchdog/watchdogn/ 68 What: /sys/class/watchdog/watchdogn/pretimeout_governor
87 Date: February 2017 69 Date: February 2017
88 Contact: Wim Van Sebroeck <wim@iguana.be 70 Contact: Wim Van Sebroeck <wim@iguana.be>
89 Description: 71 Description:
90 It is a read/write file. When 72 It is a read/write file. When read, the currently assigned
91 pretimeout governor is returne 73 pretimeout governor is returned. When written, it sets
92 the pretimeout governor. 74 the pretimeout governor.
93 <<
94 What: /sys/class/watchdog/watchdog1/ <<
95 Date: August 2019 <<
96 Contact: Ivan Mikhaylov <i.mikhaylov@yad <<
97 Alexander Amelkin <a.amelkin@ya <<
98 Description: <<
99 It is a read/write file. This <<
100 system has booted from the alt <<
101 expiration of a watchdog timer <<
102 alternate boot function was en <<
103 devicetree option for that wat <<
104 h/w strapping (for WDT2 only). <<
105 <<
106 At alternate flash the 'access <<
107 <<
108 ast2400: <<
109 a way to get a <<
110 chip at CS0 af <<
111 chip at CS1. <<
112 ast2500: <<
113 a way to resto <<
114 from (CS0->CS1 <<
115 CS1->CS1). <<
116 <<
117 Clearing the boot code selecti <<
118 resets to the initial state th <<
119 the SoC is in normal mapping s <<
120 clearing those bits does nothi <<
121 For alternate boot mode (boote <<
122 expiration) the behavior diffe <<
123 <<
124 This option can be used with w <<
125 <<
126 When read, the current status <<
127 shown. When written with any n <<
128 the boot code selection and th <<
129 in chipselect reset for AST240 <<
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