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0d2d67b486
Introduce st,stm32mp13-rng compatible and add st,rng-lock-conf. If st,rng-lock-conf is set, the RNG configuration in RNG_CR, RNG_HTCR and RNG_NSCR will be locked. It is supported starting from the RNG version present in the STM32MP13 Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
68 lines
1.3 KiB
YAML
68 lines
1.3 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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$id: http://devicetree.org/schemas/rng/st,stm32-rng.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: STMicroelectronics STM32 RNG
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description: |
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The STM32 hardware random number generator is a simple fixed purpose
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IP and is fully separated from other crypto functions.
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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,stm32-rng
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- st,stm32mp13-rng
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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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resets:
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maxItems: 1
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clock-error-detect:
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type: boolean
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description: If set enable the clock detection management
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st,rng-lock-conf:
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type: boolean
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description: If set, the RNG configuration in RNG_CR, RNG_HTCR and
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RNG_NSCR will be locked.
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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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contains:
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enum:
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- st,stm32-rng
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then:
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properties:
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st,rng-lock-conf: false
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/stm32mp1-clks.h>
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rng@54003000 {
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compatible = "st,stm32-rng";
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reg = <0x54003000 0x400>;
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clocks = <&rcc RNG1_K>;
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};
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...
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