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hwrng: atmel - Add TRNG DT binding doc

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Document DT bindings of Atmel's TRNG (True Random Number Generator) IP.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Peter Korsgaard <peter@korsgaard.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Boris Brezillon 2014-11-20 10:43:24 +01:00 committed by Herbert Xu
parent 4951db7edc
commit 1281c87ff0
1 changed files with 16 additions and 0 deletions
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Documentation/devicetree/bindings/hwrng/atmel-trng.txt Normal file
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Atmel TRNG (True Random Number Generator) block
Required properties:
- compatible : Should be "atmel,at91sam9g45-trng"
- reg : Offset and length of the register set of this block
- interrupts : the interrupt number for the TRNG block
- clocks: should contain the TRNG clk source
Example:
trng@fffcc000 {
compatible = "atmel,at91sam9g45-trng";
reg = <0xfffcc000 0x4000>;
interrupts = <6 IRQ_TYPE_LEVEL_HIGH 0>;
clocks = <&trng_clk>;
};