tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/rng/st,stm32-rng.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: STMicroelectronics STM32 RNG
8
9description: |
10 The STM32 hardware random number generator is a simple fixed purpose
11 IP and is fully separated from other crypto functions.
12
13maintainers:
14 - Lionel Debieve <lionel.debieve@foss.st.com>
15
16properties:
17 compatible:
18 enum:
19 - st,stm32-rng
20 - st,stm32mp13-rng
21 - st,stm32mp25-rng
22
23 reg:
24 maxItems: 1
25
26 clocks:
27 minItems: 1
28 maxItems: 2
29
30 clock-names:
31 items:
32 - const: core
33 - const: bus
34
35 resets:
36 maxItems: 1
37
38 clock-error-detect:
39 type: boolean
40 description: If set enable the clock detection management
41
42 st,rng-lock-conf:
43 type: boolean
44 description: If set, the RNG configuration in RNG_CR, RNG_HTCR and
45 RNG_NSCR will be locked.
46
47 access-controllers:
48 minItems: 1
49 maxItems: 2
50
51required:
52 - compatible
53 - reg
54 - clocks
55
56allOf:
57 - if:
58 properties:
59 compatible:
60 contains:
61 enum:
62 - st,stm32-rng
63 then:
64 properties:
65 st,rng-lock-conf: false
66
67 - if:
68 properties:
69 compatible:
70 contains:
71 enum:
72 - st,stm32-rng
73 - st,stm32mp13-rng
74 then:
75 properties:
76 clocks:
77 maxItems: 1
78 clock-names: false
79 else:
80 properties:
81 clocks:
82 minItems: 2
83 required:
84 - clock-names
85
86additionalProperties: false
87
88examples:
89 - |
90 #include <dt-bindings/clock/stm32mp1-clks.h>
91 rng@54003000 {
92 compatible = "st,stm32-rng";
93 reg = <0x54003000 0x400>;
94 clocks = <&rcc RNG1_K>;
95 };
96
97...