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access-controllers is an optional property that allows a peripheral to refer to one or more domain access controller(s). Description of this property is added to all peripheral binding files of the peripheral under the STM32 firewall controller. It allows an accurate representation of the hardware, where various peripherals are connected to a firewall bus. The firewall can then check the peripheral accesses before allowing its device to probe. Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
94 lines
1.8 KiB
YAML
94 lines
1.8 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/crypto/st,stm32-hash.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: STMicroelectronics STM32 HASH
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description: The STM32 HASH block is built on the HASH block found in
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the STn8820 SoC introduced in 2007, and subsequently used in the U8500
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SoC in 2010.
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maintainers:
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- Lionel Debieve <lionel.debieve@foss.st.com>
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properties:
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compatible:
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enum:
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- st,stn8820-hash
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- stericsson,ux500-hash
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- st,stm32f456-hash
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- st,stm32f756-hash
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- st,stm32mp13-hash
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reg:
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maxItems: 1
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clocks:
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maxItems: 1
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interrupts:
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maxItems: 1
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resets:
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maxItems: 1
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dmas:
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maxItems: 1
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dma-names:
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items:
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- const: in
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dma-maxburst:
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description: Set number of maximum dma burst supported
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 2
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default: 0
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power-domains:
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maxItems: 1
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access-controllers:
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minItems: 1
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maxItems: 2
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required:
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- compatible
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- reg
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- clocks
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allOf:
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- if:
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properties:
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compatible:
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items:
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const: stericsson,ux500-hash
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then:
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properties:
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interrupts: false
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else:
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required:
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- interrupts
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/clock/stm32mp1-clks.h>
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#include <dt-bindings/reset/stm32mp1-resets.h>
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hash@54002000 {
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compatible = "st,stm32f756-hash";
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reg = <0x54002000 0x400>;
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interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&rcc HASH1>;
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resets = <&rcc HASH1_R>;
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dmas = <&mdma1 31 0x10 0x1000A02 0x0 0x0>;
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dma-names = "in";
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dma-maxburst = <2>;
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};
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...
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