| From | Maxime Coquelin <> | Subject | [PATCH v2 06/18] dt-bindings: Document the STM32 reset bindings | Date | Fri, 20 Feb 2015 19:01:05 +0100 |
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This adds documentation of device tree bindings for the STM32 reset controller.
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> --- .../devicetree/bindings/reset/st,stm32-reset.txt | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/st,stm32-reset.txt
diff --git a/Documentation/devicetree/bindings/reset/st,stm32-reset.txt b/Documentation/devicetree/bindings/reset/st,stm32-reset.txt new file mode 100644 index 0000000..5982528 --- /dev/null +++ b/Documentation/devicetree/bindings/reset/st,stm32-reset.txt @@ -0,0 +1,36 @@ +STMicroelectronics STM32 Peripheral Reset Controller +==================================================== + +Please also refer to reset.txt in this directory for common reset +controller binding usage. + +Required properties: +- compatible: Should be "st,stm32-reset" +- reg: should be register base and length as documented in the + datasheet +- #reset-cells: 1, see below + +example: + +reset_ahb1: reset@40023810 { + #reset-cells = <1>; + compatible = "st,stm32-reset"; + reg = <0x40023810 0x4>; +}; + +Specifying softreset control of devices +======================================= + +Device nodes should specify the reset channel required in their "resets" +property, containing a phandle to the reset device node and an index specifying +which channel to use, as described in reset.txt + +example: + + timer2 { + resets = <&resets TIM2_RESET>; + }; + +Macro definitions for the supported reset channels can be found in: + +include/dt-bindings/reset/st,stm32f429.h -- 1.9.1
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