32 lines
1001 B
Plaintext
32 lines
1001 B
Plaintext
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* SBSA (Server Base System Architecture) Generic Watchdog
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The SBSA Generic Watchdog Timer is used to force a reset of the system
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after two stages of timeout have elapsed. A detailed definition of the
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watchdog timer can be found in the ARM document: ARM-DEN-0029 - Server
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Base System Architecture (SBSA)
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Required properties:
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- compatible: Should at least contain "arm,sbsa-gwdt".
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- reg: Each entry specifies the base physical address of a register frame
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and the length of that frame; currently, two frames must be defined,
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in this order:
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1: Watchdog control frame;
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2: Refresh frame.
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- interrupts: Should contain the Watchdog Signal 0 (WS0) SPI (Shared
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Peripheral Interrupt) number of SBSA Generic Watchdog.
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Optional properties
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- timeout-sec: Watchdog timeout values (in seconds).
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Example for FVP Foundation Model v8:
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watchdog@2a440000 {
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compatible = "arm,sbsa-gwdt";
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reg = <0x0 0x2a440000 0 0x1000>,
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<0x0 0x2a450000 0 0x1000>;
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interrupts = <0 27 4>;
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timeout-sec = <30>;
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};
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