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Diffstat (limited to 'Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt b/Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt new file mode 100644 index 000000000..3de96186e --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt @@ -0,0 +1,39 @@ +Zodiac Inflight Innovations RAVE Supervisory Processor Watchdog Bindings + +RAVE SP watchdog device is a "MFD cell" device corresponding to +watchdog functionality of RAVE Supervisory Processor. It is expected +that its Device Tree node is specified as a child of the node +corresponding to the parent RAVE SP device (as documented in +Documentation/devicetree/bindings/mfd/zii,rave-sp.txt) + +Required properties: + +- compatible: Depending on wire protocol implemented by RAVE SP + firmware, should be one of: + - "zii,rave-sp-watchdog" + - "zii,rave-sp-watchdog-legacy" + +Optional properties: + +- wdt-timeout: Two byte nvmem cell specified as per + Documentation/devicetree/bindings/nvmem/nvmem.txt + +Example: + + rave-sp { + compatible = "zii,rave-sp-rdu1"; + current-speed = <38400>; + + eeprom { + wdt_timeout: wdt-timeout@8E { + reg = <0x8E 2>; + }; + }; + + watchdog { + compatible = "zii,rave-sp-watchdog"; + nvmem-cells = <&wdt_timeout>; + nvmem-cell-names = "wdt-timeout"; + }; + } + |