1 Bindings for MEN A21 Watchdog device connected 1 Bindings for MEN A21 Watchdog device connected to GPIO lines
2 2
3 Required properties: 3 Required properties:
4 - compatible: "men,a021-wdt" 4 - compatible: "men,a021-wdt"
5 - gpios: Specifies the pins that control the W 5 - gpios: Specifies the pins that control the Watchdog, order:
6 1: Watchdog enable 6 1: Watchdog enable
7 2: Watchdog fast-mode 7 2: Watchdog fast-mode
8 3: Watchdog trigger 8 3: Watchdog trigger
9 4: Watchdog reset cause bit 0 9 4: Watchdog reset cause bit 0
10 5: Watchdog reset cause bit 1 10 5: Watchdog reset cause bit 1
11 6: Watchdog reset cause bit 2 11 6: Watchdog reset cause bit 2
12 12
13 Optional properties: 13 Optional properties:
14 - None 14 - None
15 15
16 Example: 16 Example:
17 watchdog { 17 watchdog {
18 compatible ="men,a021-wdt"; 18 compatible ="men,a021-wdt";
19 gpios = <&gpio3 9 1 /* WD_ 19 gpios = <&gpio3 9 1 /* WD_EN */
20 &gpio3 10 1 /* WD_ 20 &gpio3 10 1 /* WD_FAST */
21 &gpio3 11 1 /* WD_ 21 &gpio3 11 1 /* WD_TRIG */
22 &gpio3 6 1 /* RST 22 &gpio3 6 1 /* RST_CAUSE[0] */
23 &gpio3 7 1 /* RST 23 &gpio3 7 1 /* RST_CAUSE[1] */
24 &gpio3 8 1>; /* RST 24 &gpio3 8 1>; /* RST_CAUSE[2] */
25 }; 25 };
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