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Commit 7bb952cd authored by lionel.debieve@st.com's avatar lionel.debieve@st.com Committed by Herbert Xu
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dt-bindings: Document STM32 HASH bindings 



This adds documentation of device tree bindings for the STM32
HASH controller.

Signed-off-by: default avatarLionel Debieve <lionel.debieve@st.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent c35af01d

Documentation/devicetree/bindings/crypto/st,stm32-hash.txt

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* STMicroelectronics STM32 HASH



Required properties:

- compatible: Should contain entries for this and backward compatible

  HASH versions:

  - "st,stm32f456-hash" for stm32 F456.

  - "st,stm32f756-hash" for stm32 F756.

- reg: The address and length of the peripheral registers space

- interrupts: the interrupt specifier for the HASH

- clocks: The input clock of the HASH instance



Optional properties:

- resets: The input reset of the HASH instance

- dmas: DMA specifiers for the HASH. See the DMA client binding,

	 Documentation/devicetree/bindings/dma/dma.txt

- dma-names: DMA request name. Should be "in" if a dma is present.

- dma-maxburst: Set number of maximum dma burst supported



Example:



hash1: hash@50060400 {

	compatible = "st,stm32f756-hash";

	reg = <0x50060400 0x400>;

	interrupts = <80>;

	clocks = <&rcc 0 STM32F7_AHB2_CLOCK(HASH)>;

	resets = <&rcc STM32F7_AHB2_RESET(HASH)>;

	dmas = <&dma2 7 2 0x400 0x0>;

	dma-names = "in";

	dma-maxburst = <0>;

};