diff options
| author | Johannes Thumshirn <johannes.thumshirn@men.de> | 2013-06-18 17:19:45 +0200 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2013-07-11 22:19:05 +0200 |
| commit | 26c57ef1ea35f2e7b73db5fad3c81c388d6d056a (patch) | |
| tree | 7532b2954404855b69ce4987e837175d2b35d9d7 /Documentation | |
| parent | Watchdog: fix clearing of the watchdog interrupt (diff) | |
| download | linux-26c57ef1ea35f2e7b73db5fad3c81c388d6d056a.tar.xz linux-26c57ef1ea35f2e7b73db5fad3c81c388d6d056a.zip | |
watchdog: New watchdog driver for MEN A21 watchdogs
This patch adds the driver for the watchdog devices found on MEN Mikro
Elektronik A21 VMEbus CPU Carrier Boards. It has DT-support and uses the
watchdog framework.
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/men-a021-wdt.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/men-a021-wdt.txt b/Documentation/devicetree/bindings/gpio/men-a021-wdt.txt new file mode 100644 index 000000000000..370dee3226d9 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/men-a021-wdt.txt @@ -0,0 +1,25 @@ +Bindings for MEN A21 Watchdog device connected to GPIO lines + +Required properties: +- compatible: "men,a021-wdt" +- gpios: Specifies the pins that control the Watchdog, order: + 1: Watchdog enable + 2: Watchdog fast-mode + 3: Watchdog trigger + 4: Watchdog reset cause bit 0 + 5: Watchdog reset cause bit 1 + 6: Watchdog reset cause bit 2 + +Optional properties: +- None + +Example: + watchdog { + compatible ="men,a021-wdt"; + gpios = <&gpio3 9 1 /* WD_EN */ + &gpio3 10 1 /* WD_FAST */ + &gpio3 11 1 /* WD_TRIG */ + &gpio3 6 1 /* RST_CAUSE[0] */ + &gpio3 7 1 /* RST_CAUSE[1] */ + &gpio3 8 1>; /* RST_CAUSE[2] */ + }; |