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Commit | Line | Data |
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9487a9cc TA |
1 | * Samsung's Watchdog Timer Controller |
2 | ||
3 | The Samsung's Watchdog controller is used for resuming system operation | |
4 | after a preset amount of time during which the WDT reset event has not | |
f21ccfa0 | 5 | occurred. |
9487a9cc TA |
6 | |
7 | Required properties: | |
4f1f653a | 8 | - compatible : should be one among the following |
15f416a0 KK |
9 | - "samsung,s3c2410-wdt" for S3C2410 |
10 | - "samsung,s3c6410-wdt" for S3C6410, S5PV210 and Exynos4 | |
11 | - "samsung,exynos5250-wdt" for Exynos5250 | |
12 | - "samsung,exynos5420-wdt" for Exynos5420 | |
13 | - "samsung,exynos7-wdt" for Exynos7 | |
4f1f653a | 14 | |
9487a9cc TA |
15 | - reg : base physical address of the controller and length of memory mapped |
16 | region. | |
17 | - interrupts : interrupt number to the cpu. | |
4f1f653a LKA |
18 | - samsung,syscon-phandle : reference to syscon node (This property required only |
19 | in case of compatible being "samsung,exynos5250-wdt" or "samsung,exynos5420-wdt". | |
20 | In case of Exynos5250 and 5420 this property points to syscon node holding the PMU | |
21 | base address) | |
c1fd5f64 FP |
22 | |
23 | Optional properties: | |
24 | - timeout-sec : contains the watchdog timeout in seconds. | |
4f1f653a LKA |
25 | |
26 | Example: | |
27 | ||
28 | watchdog@101D0000 { | |
29 | compatible = "samsung,exynos5250-wdt"; | |
30 | reg = <0x101D0000 0x100>; | |
31 | interrupts = <0 42 0>; | |
32 | clocks = <&clock 336>; | |
33 | clock-names = "watchdog"; | |
34 | samsung,syscon-phandle = <&pmu_syscon>; | |
35 | }; |