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25 lines
771 B
25 lines
771 B
HWRNG support for the timeriomem_rng driver |
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Required properties: |
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- compatible : "timeriomem_rng" |
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- reg : base address to sample from |
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- period : wait time in microseconds to use between samples |
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Optional properties: |
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- quality : estimated number of bits of true entropy per 1024 bits read from the |
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rng. Defaults to zero which causes the kernel's default quality to |
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be used instead. Note that the default quality is usually zero |
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which disables using this rng to automatically fill the kernel's |
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entropy pool. |
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N.B. currently 'reg' must be at least four bytes wide and 32-bit aligned |
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Example: |
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hwrng@44 { |
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#address-cells = <1>; |
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#size-cells = <1>; |
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compatible = "timeriomem_rng"; |
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reg = <0x44 0x04>; |
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period = <1000000>; |
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};
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