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author | Joel Stanley <joel@jms.id.au> | 2018-03-13 16:47:25 +1030 |
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committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2018-03-24 10:19:38 +0100 |
commit | 1daa85d13f39144e43508fdd364ecbbaffbf35dc (patch) | |
tree | ccffd16e4bb5139f18c2eafa38068fece51f4b53 | |
parent | 089bcaa87e772beb005068a5ef28c71bb895d01d (diff) | |
download | linux-1daa85d13f39144e43508fdd364ecbbaffbf35dc.tar.gz linux-1daa85d13f39144e43508fdd364ecbbaffbf35dc.tar.bz2 linux-1daa85d13f39144e43508fdd364ecbbaffbf35dc.zip |
dt-bindings: watchdog: Add Nuvoton NPCM description
These bindings describe the watchdog IP as used by the Nuvoton NPCM750
(Poleg) BMC SoC.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
-rw-r--r-- | Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt b/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt new file mode 100644 index 000000000000..6d593003c933 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt @@ -0,0 +1,28 @@ +Nuvoton NPCM Watchdog + +Nuvoton NPCM timer module provides five 24-bit timer counters, and a watchdog. +The watchdog supports a pre-timeout interrupt that fires 10ms before the +expiry. + +Required properties: +- compatible : "nuvoton,npcm750-wdt" for NPCM750 (Poleg). +- reg : Offset and length of the register set for the device. +- interrupts : Contain the timer interrupt with flags for + falling edge. + +Required clocking property, have to be one of: +- clocks : phandle of timer reference clock. +- clock-frequency : The frequency in Hz of the clock that drives the NPCM7xx + timer (usually 25000000). + +Optional properties: +- timeout-sec : Contains the watchdog timeout in seconds + +Example: + +timer@f000801c { + compatible = "nuvoton,npcm750-wdt"; + interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>; + reg = <0xf000801c 0x4>; + clocks = <&clk NPCM7XX_CLK_TIMER>; +}; |