From 7bb952cdfae25f4d9d4dd8c4812c302f57aac4b6 Mon Sep 17 00:00:00 2001 From: "lionel.debieve@st.com" Date: Thu, 13 Jul 2017 15:32:26 +0200 Subject: [PATCH] dt-bindings: Document STM32 HASH bindings This adds documentation of device tree bindings for the STM32 HASH controller. Signed-off-by: Lionel Debieve Acked-by: Rob Herring Signed-off-by: Herbert Xu --- .../bindings/crypto/st,stm32-hash.txt | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Documentation/devicetree/bindings/crypto/st,stm32-hash.txt diff --git a/Documentation/devicetree/bindings/crypto/st,stm32-hash.txt b/Documentation/devicetree/bindings/crypto/st,stm32-hash.txt new file mode 100644 index 000000000000..04fc246f02f7 --- /dev/null +++ b/Documentation/devicetree/bindings/crypto/st,stm32-hash.txt @@ -0,0 +1,30 @@ +* 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>; +}; -- 2.20.1